Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

CD44 antigen

Gene

CD44

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Receptor for hyaluronic acid (HA). Mediates cell-cell and cell-matrix interactions through its affinity for HA, and possibly also through its affinity for other ligands such as osteopontin, collagens, and matrix metalloproteinases (MMPs). Adhesion with HA plays an important role in cell migration, tumor growth and progression. In cancer cells, may play an important role in invadopodia formation. Also involved in lymphocyte activation, recirculation and homing, and in hematopoiesis. Altered expression or dysfunction causes numerous pathogenic phenotypes. Great protein heterogeneity due to numerous alternative splicing and post-translational modification events. Receptor for LGALS9; the interaction enhances binding of SMAD3 to the FOXP3 promoter, leading to up-regulation of FOXP3 expression and increased induced regulatory T (iTreg) cell stability and suppressive function (By similarity).By similarity1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei41HyaluronanBy similarity1
Binding sitei78HyaluronanBy similarity1
Binding sitei79HyaluronanBy similarity1
Binding sitei105HyaluronanBy similarity1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

  • collagen binding Source: UniProtKB
  • hyaluronic acid binding Source: UniProtKB
  • transmembrane signaling receptor activity Source: GO_Central

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionBlood group antigen, Receptor
Biological processCell adhesion

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-HSA-1474228 Degradation of the extracellular matrix
R-HSA-202733 Cell surface interactions at the vascular wall
R-HSA-216083 Integrin cell surface interactions
R-HSA-2160916 Hyaluronan uptake and degradation
R-HSA-6798695 Neutrophil degranulation
R-HSA-877300 Interferon gamma signaling

SIGNOR Signaling Network Open Resource

More...
SIGNORi
P16070

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
CD44 antigen
Alternative name(s):
CDw44
Epican
Extracellular matrix receptor III
Short name:
ECMR-III
GP90 lymphocyte homing/adhesion receptor
HUTCH-I
Heparan sulfate proteoglycan
Hermes antigen
Hyaluronate receptor
Phagocytic glycoprotein 1
Short name:
PGP-1
Phagocytic glycoprotein I
Short name:
PGP-I
CD_antigen: CD44
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:CD44
Synonyms:LHR, MDU2, MDU3, MIC4
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000005640 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 11

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
HostDB:ENSG00000026508.16

Human Gene Nomenclature Database

More...
HGNCi
HGNC:1681 CD44

Online Mendelian Inheritance in Man (OMIM)

More...
MIMi
107269 gene
172290 gene

neXtProt; the human protein knowledge platform

More...
neXtProti
NX_P16070

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini21 – 649ExtracellularSequence analysisAdd BLAST629
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei650 – 670HelicalSequence analysisAdd BLAST21
Topological domaini671 – 742CytoplasmicSequence analysisAdd BLAST72

Keywords - Cellular componenti

Cell membrane, Cell projection, Membrane

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Organism-specific databases

DisGeNET

More...
DisGeNETi
960
MIMi609027 phenotype

Open Targets

More...
OpenTargetsi
ENSG00000026508

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...
PharmGKBi
PA26221

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...
ChEMBLi
CHEMBL3232692

Drug and drug target database

More...
DrugBanki
DB08818 Hyaluronic acid

Polymorphism and mutation databases

BioMuta curated single-nucleotide variation and disease association database

More...
BioMutai
CD44

Domain mapping of disease mutations (DMDM)

More...
DMDMi
308153615

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 20By similarityAdd BLAST20
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000002668721 – 742CD44 antigenAdd BLAST722

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi25N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi28 ↔ 129PROSITE-ProRule annotation
Disulfide bondi53 ↔ 118PROSITE-ProRule annotation
Glycosylationi57N-linked (GlcNAc...) asparagine2 Publications1
Disulfide bondi77 ↔ 97PROSITE-ProRule annotation
Glycosylationi100N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi110N-linked (GlcNAc...) asparagine1 Publication1
Glycosylationi120N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi350N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi548N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi599N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi636N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei672Phosphoserine; by PKC1 Publication1
Modified residuei686PhosphoserineCombined sources1
Modified residuei697PhosphoserineBy similarity1
Modified residuei706PhosphoserineCombined sources1 Publication1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Proteolytically cleaved in the extracellular matrix by specific proteinases (possibly MMPs) in several cell lines and tumors.1 Publication
N- and O-glycosylated. O-glycosylation contains more-or-less-sulfated chondroitin sulfate glycans, whose number may affect the accessibility of specific proteinases to their cleavage site(s). It is uncertain if O-glycosylation occurs on Thr-637 or Thr-638.4 Publications
Phosphorylated; activation of PKC results in the dephosphorylation of Ser-706 (constitutive phosphorylation site), and the phosphorylation of Ser-672.2 Publications

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein, Proteoglycan

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P16070

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P16070

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P16070

PeptideAtlas

More...
PeptideAtlasi
P16070

PRoteomics IDEntifications database

More...
PRIDEi
P16070

ProteomicsDB human proteome resource

More...
ProteomicsDBi
53266
53267 [P16070-10]
53268 [P16070-11]
53269 [P16070-12]
53270 [P16070-13]
53271 [P16070-14]
53272 [P16070-15]
53273 [P16070-16]
53274 [P16070-17]
53275 [P16070-18]
53276 [P16070-19]
53277 [P16070-2]
53278 [P16070-3]
53279 [P16070-4]
53280 [P16070-5]
53281 [P16070-6]
53282 [P16070-7]
53283 [P16070-8]
53284 [P16070-9]

Consortium for Top Down Proteomics

More...
TopDownProteomicsi
P16070-12 [P16070-12]
P16070-14 [P16070-14]
P16070-18 [P16070-18]
P16070-4 [P16070-4]
P16070-7 [P16070-7]

2D gel databases

Two-dimensional polyacrylamide gel electrophoresis database from the Geneva University Hospital

More...
SWISS-2DPAGEi
P16070

PTM databases

GlyConnect protein glycosylation platform

More...
GlyConnecti
736

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P16070

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
P16070

SwissPalm database of S-palmitoylation events

More...
SwissPalmi
P16070

UniCarbKB; an annotated and curated database of glycan structures

More...
UniCarbKBi
P16070

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Isoform 10 (epithelial isoform) is expressed by cells of epithelium and highly expressed by carcinomas. Expression is repressed in neuroblastoma cells.

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSG00000026508 Expressed in 228 organ(s), highest expression level in parotid gland

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
P16070 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P16070 HS

Organism-specific databases

Human Protein Atlas

More...
HPAi
CAB000112
CAB000316
HPA005785

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts with PKN2 (By similarity). Interacts with TIAM1 and TIAM2 (By similarity). Interacts with HA, as well as other glycosaminoglycans, collagen, laminin, and fibronectin via its N-terminal segment (PubMed:14992719, PubMed:17085435). Interacts with UNC119 (PubMed:19381274). Interacts with PDPN (via extracellular domain); this interaction is required for PDPN-mediated directional migration and regulation of lamellipodia extension/stabilization during cell spreading and migration (PubMed:20962267). Interacts with RDX, EZR and MSN (By similarity).By similarity4 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
107398, 130 interactors

CORUM comprehensive resource of mammalian protein complexes

More...
CORUMi
P16070

Database of interacting proteins

More...
DIPi
DIP-1121N

The Eukaryotic Linear Motif resource for Functional Sites in Proteins

More...
ELMi
P16070

Protein interaction database and analysis system

More...
IntActi
P16070, 57 interactors

Molecular INTeraction database

More...
MINTi
P16070

STRING: functional protein association networks

More...
STRINGi
9606.ENSP00000398632

Chemistry databases

BindingDB database of measured binding affinities

More...
BindingDBi
P16070

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1742
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P16070

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P16070

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P16070

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini32 – 120LinkPROSITE-ProRule annotationAdd BLAST89

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni224 – 649StemAdd BLAST426
Regioni673 – 691Required for interaction with EZR, MSN and RDX and for co-localization to microvilliBy similarityAdd BLAST19

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi150 – 158Arg/Lys-rich (basic)9

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The lectin-like LINK domain is responsible for hyaluronan binding.By similarity

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IZCP Eukaryota
ENOG4111S6T LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00530000063822

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000115236

The HOVERGEN Database of Homologous Vertebrate Genes

More...
HOVERGENi
HBG003850

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P16070

KEGG Orthology (KO)

More...
KOi
K06256

Identification of Orthologs from Complete Genome Data

More...
OMAi
SHPMGRG

Database of Orthologous Groups

More...
OrthoDBi
EOG091G0F98

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P16070

TreeFam database of animal gene trees

More...
TreeFami
TF334173

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.10.100.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR016186 C-type_lectin-like/link_sf
IPR001231 CD44_antigen
IPR016187 CTDL_fold
IPR000538 Link_dom

The PANTHER Classification System

More...
PANTHERi
PTHR10225:SF6 PTHR10225:SF6, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00193 Xlink, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00658 CD44
PR01265 LINKMODULE

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00445 LINK, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF56436 SSF56436, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS01241 LINK_1, 1 hit
PS50963 LINK_2, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (19+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 19 <p>This subsection of the ‘Sequence’ section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Note: Additional isoforms seem to exist. Additional isoforms are produced by alternative splicing of 10 out of 19 exons within the extracellular domain. Additional diversity is generated through the utilization of internal splice donor and acceptor sites within 2 of the exons. A variation in the cytoplasmic domain was shown to result from the alternative splicing of 2 exons. Isoform CD44 is expected to be expressed in normal cells. Splice variants have been found in many tumor cell lines. Exons 5, 6, 7, 8, 9, 10, 11, 13, 14 and 19 are alternatively spliced. Experimental confirmation may be lacking for some isoforms.1 Publication

This entry has 19 described isoforms and 20 potential isoforms that are computationally mapped.Show allAlign All

Isoform 1 (identifier: P16070-1) [UniParc]FASTAAdd to basket
Also known as: CD44

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MDKFWWHAAW GLCLVPLSLA QIDLNITCRF AGVFHVEKNG RYSISRTEAA
60 70 80 90 100
DLCKAFNSTL PTMAQMEKAL SIGFETCRYG FIEGHVVIPR IHPNSICAAN
110 120 130 140 150
NTGVYILTSN TSQYDTYCFN ASAPPEEDCT SVTDLPNAFD GPITITIVNR
160 170 180 190 200
DGTRYVQKGE YRTNPEDIYP SNPTDDDVSS GSSSERSSTS GGYIFYTFST
210 220 230 240 250
VHPIPDEDSP WITDSTDRIP ATTLMSTSAT ATETATKRQE TWDWFSWLFL
260 270 280 290 300
PSESKNHLHT TTQMAGTSSN TISAGWEPNE ENEDERDRHL SFSGSGIDDD
310 320 330 340 350
EDFISSTIST TPRAFDHTKQ NQDWTQWNPS HSNPEVLLQT TTRMTDVDRN
360 370 380 390 400
GTTAYEGNWN PEAHPPLIHH EHHEEEETPH STSTIQATPS STTEETATQK
410 420 430 440 450
EQWFGNRWHE GYRQTPKEDS HSTTGTAAAS AHTSHPMQGR TTPSPEDSSW
460 470 480 490 500
TDFFNPISHP MGRGHQAGRR MDMDSSHSIT LQPTANPNTG LVEDLDRTGP
510 520 530 540 550
LSMTTQQSNS QSFSTSHEGL EEDKDHPTTS TLTSSNRNDV TGGRRDPNHS
560 570 580 590 600
EGSTTLLEGY TSHYPHTKES RTFIPVTSAK TGSFGVTAVT VGDSNSNVNR
610 620 630 640 650
SLSGDQDTFH PSGGSHTTHG SESDGHSHGS QEGGANTTSG PIRTPQIPEW
660 670 680 690 700
LIILASLLAL ALILAVCIAV NSRRRCGQKK KLVINSGNGA VEDRKPSGLN
710 720 730 740
GEASKSQEMV HLVNKESSET PDQFMTADET RNLQNVDMKI GV
Note: Corresponds to the largest isoform.
Length:742
Mass (Da):81,538
Last modified:October 5, 2010 - v3
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iBB9B66B19B970349
GO
Isoform 2 (identifier: P16070-2) [UniParc]FASTAAdd to basket
Also known as: CD44SP

The sequence of this isoform differs from the canonical sequence as follows:
     23-29: DLNITCR → GVGRRKS
     30-742: Missing.

Show »
Length:29
Mass (Da):3,327
Checksum:iFD28FA0E33AB08B9
GO
Isoform 3 (identifier: P16070-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     192-192: G → A
     193-223: Missing.

Note: Alternative splice donor/acceptor on exon 5.
Show »
Length:711
Mass (Da):77,983
Checksum:iEF48BFB8E4478B97
GO
Isoform 4 (identifier: P16070-4) [UniParc]FASTAAdd to basket
Also known as: Epidermal

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → S
     224-266: Missing.

Note: Lacks exon 6.
Show »
Length:699
Mass (Da):76,612
Checksum:iCEC79496379F44FF
GO
Isoform 5 (identifier: P16070-5) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     266-273: Missing.

Note: Alternative splice donor/acceptor on exon 7.
Show »
Length:734
Mass (Da):80,790
Checksum:i48D27AD91375BCDC
GO
Isoform 6 (identifier: P16070-6) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     385-385: I → T
     386-428: Missing.

Note: Lacks exon 10.
Show »
Length:699
Mass (Da):76,705
Checksum:iA150D6FA11DAABD6
GO
Isoform 7 (identifier: P16070-7) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     506-506: Q → R
     507-535: Missing.

Note: Lacks exon 13.
Show »
Length:713
Mass (Da):78,446
Checksum:i2C2098B56FF4F30E
GO
Isoform 8 (identifier: P16070-8) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     536-536: N → R
     537-604: Missing.

Note: Lacks exon 14.
Show »
Length:674
Mass (Da):74,388
Checksum:i538CB559E671CF23
GO
Isoform 9 (identifier: P16070-9) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     675-675: R → S
     676-742: Missing.

Note: Lacks exon 19.
Show »
Length:675
Mass (Da):74,196
Checksum:i3891F679BC733F89
GO
Isoform 10 (identifier: P16070-10) [UniParc]FASTAAdd to basket
Also known as: CD44E, CD44R1, Epithelial, Keratinocyte

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → N
     224-472: Missing.

Note: Lacks exons 6-11.
Show »
Length:493
Mass (Da):53,411
Checksum:iA494CCC37F161EF2
GO
Isoform 11 (identifier: P16070-11) [UniParc]FASTAAdd to basket
Also known as: CD44R2

The sequence of this isoform differs from the canonical sequence as follows:
     223-535: Missing.

Note: Lacks exons 6-13.
Show »
Length:429
Mass (Da):46,565
Checksum:i557BD4FED59E0867
GO
Isoform 12 (identifier: P16070-12) [UniParc]FASTAAdd to basket
Also known as: CDw44, Reticulocyte

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → R
     224-604: Missing.

Note: Lacks exons 6-14.
Show »
Length:361
Mass (Da):39,416
Checksum:iF51A746B442E0D33
GO
Isoform 13 (identifier: P16070-13) [UniParc]FASTAAdd to basket
Also known as: CD44R4

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → N
     224-472: Missing.
     536-536: N → R
     537-604: Missing.

Note: Lacks exons 6-11 and exon 14.
Show »
Length:425
Mass (Da):46,261
Checksum:i47F544DD9890917B
GO
Isoform 14 (identifier: P16070-14) [UniParc]FASTAAdd to basket
Also known as: CD44R5

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → N
     224-472: Missing.
     506-506: Q → R
     507-535: Missing.
     536-536: N → R
     537-604: Missing.

Note: Lacks exons 6-11, exon 13 and exon 14.
Show »
Length:396
Mass (Da):43,169
Checksum:i5118DABF71C1F7D0
GO
Isoform 15 (identifier: P16070-15) [UniParc]FASTAAdd to basket
Also known as: Hermes

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → R
     224-604: Missing.
     675-675: R → S
     676-742: Missing.

Note: Lacks exons 6-14 and exon 19.
Show »
Length:294
Mass (Da):32,075
Checksum:iE11B9B38F4A74817
GO
Isoform 16 (identifier: P16070-16) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     192-192: G → A
     193-223: Missing.
     385-385: I → T
     386-428: Missing.

Note: Alternative splice donor/acceptor on exon 5 and lacks exon 10.
Show »
Length:668
Mass (Da):73,150
Checksum:iD719820A01C4517F
GO
Isoform 17 (identifier: P16070-17) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     266-273: Missing.
     385-385: I → T
     386-428: Missing.

Note: Alternative splice donor/acceptor on exon 7 and lacks exon 10.
Show »
Length:691
Mass (Da):75,957
Checksum:i737967321EE8F579
GO
Isoform 18 (identifier: P16070-18) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     223-223: T → R
     224-604: Missing.
     605-625: Missing.

Note: No experimental confirmation available.
Show »
Length:340
Mass (Da):37,278
Checksum:iC2E036A7DAB5717B
GO
Isoform 19 (identifier: P16070-19) [UniParc]FASTAAdd to basket
Also known as: CD44RC

The sequence of this isoform differs from the canonical sequence as follows:
     78-139: RYGFIEGHVV...TSVTDLPNAF → SLHCSQQSKK...VRNSRPVYDS
     140-742: Missing.

Note: Soluble isoform, has enhanced hyaluronan binding.
Show »
Length:139
Mass (Da):15,635
Checksum:i4A127F5C54BB7B62
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 20 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
H0YEV3H0YEV3_HUMAN
CD44 antigen
CD44
243Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0YD13H0YD13_HUMAN
CD44 antigen
CD44
206Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0Y5E4H0Y5E4_HUMAN
CD44 antigen
CD44
294Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0YD90H0YD90_HUMAN
CD44 antigen
CD44
195Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0YCV9H0YCV9_HUMAN
CD44 antigen
CD44
277Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
E9PKC6E9PKC6_HUMAN
CD44 antigen
CD44
78Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
Q86UZ1Q86UZ1_HUMAN
CD44 antigen
CD44
80Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0Y2P0H0Y2P0_HUMAN
CD44 antigen
CD44
287Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0YDX6H0YDX6_HUMAN
CD44 antigen
CD44
183Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H0YD17H0YD17_HUMAN
CD44 antigen
CD44
229Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
There are more potential isoformsShow all

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti26I → M in AAA82949 (Ref. 10) Curated1
Sequence conflicti109S → Y in AAA35674 (PubMed:2466575).Curated1
Sequence conflicti109S → Y in AAA51950 (PubMed:1840487).Curated1
Sequence conflicti109S → Y in CAA38951 (PubMed:1991450).Curated1
Sequence conflicti109S → Y in CAB61878 (PubMed:7508842).Curated1
Sequence conflicti221A → R in CAA38951 (PubMed:1991450).Curated1
Sequence conflicti241T → A in CAB61878 (PubMed:7508842).Curated1
Sequence conflicti410E → V in CAA47271 (PubMed:1281868).Curated1
Sequence conflicti494D → N in CAB61878 (PubMed:7508842).Curated1
Sequence conflicti555T → H in CAA38951 (PubMed:1991450).Curated1
Sequence conflicti620G → E in AAA35674 (PubMed:2466575).Curated1
Sequence conflicti697S → I in AAM50041 (Ref. 11) Curated1
Sequence conflicti697S → I in AAH67348 (Ref. 16) Curated1

<p>This subsection of the ‘Sequence’ section provides information on polymorphic variants. If the variant is associated with a disease state, the description of the latter can be found in the <a href="http://www.uniprot.org/manual/involvement_in_disease">'Involvement in disease'</a> subsection.<p><a href='/help/polymorphism' target='_top'>More...</a></p>Polymorphismi

CD44 is responsible for the Indian blood group system. The molecular basis of the In(A)=In1/In(B)=In2 blood group antigens is a single variation in position 46; In(B), the most frequent allele, has Arg-46.1 Publication

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural variantiVAR_00649046R → P in In(A) antigen. 1 PublicationCorresponds to variant dbSNP:rs369473842Ensembl.1
Natural variantiVAR_030325393T → M. Corresponds to variant dbSNP:rs11607491Ensembl.1
Natural variantiVAR_021147417K → R4 PublicationsCorresponds to variant dbSNP:rs9666607Ensembl.1
Natural variantiVAR_030326479I → T9 PublicationsCorresponds to variant dbSNP:rs1467558Ensembl.1
Natural variantiVAR_030327494D → H1 PublicationCorresponds to variant dbSNP:rs12273397Ensembl.1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting. The information stored in this subsection is used to automatically construct alternative protein sequence(s) for display.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_00530323 – 29DLNITCR → GVGRRKS in isoform 2. 1 Publication7
Alternative sequenceiVSP_00530430 – 742Missing in isoform 2. 1 PublicationAdd BLAST713
Alternative sequenceiVSP_04387078 – 139RYGFI…LPNAF → SLHCSQQSKKVWAEEKASDQ QWQWSCGGQKAKWTQRRGQQ VSGNGAFGEQGVVRNSRPVY DS in isoform 19. 1 PublicationAdd BLAST62
Alternative sequenceiVSP_043871140 – 742Missing in isoform 19. 1 PublicationAdd BLAST603
Alternative sequenceiVSP_005305192G → A in isoform 3 and isoform 16. Curated1
Alternative sequenceiVSP_005306193 – 223Missing in isoform 3 and isoform 16. CuratedAdd BLAST31
Alternative sequenceiVSP_022797223 – 535Missing in isoform 11. 2 PublicationsAdd BLAST313
Alternative sequenceiVSP_005309223T → N in isoform 10, isoform 13 and isoform 14. 5 Publications1
Alternative sequenceiVSP_005311223T → R in isoform 12, isoform 15 and isoform 18. 8 Publications1
Alternative sequenceiVSP_005307223T → S in isoform 4. 2 Publications1
Alternative sequenceiVSP_005312224 – 604Missing in isoform 12, isoform 15 and isoform 18. 8 PublicationsAdd BLAST381
Alternative sequenceiVSP_005310224 – 472Missing in isoform 10, isoform 13 and isoform 14. 5 PublicationsAdd BLAST249
Alternative sequenceiVSP_005308224 – 266Missing in isoform 4. 2 PublicationsAdd BLAST43
Alternative sequenceiVSP_005313266 – 273Missing in isoform 5 and isoform 17. Curated8
Alternative sequenceiVSP_005314385I → T in isoform 6, isoform 16 and isoform 17. Curated1
Alternative sequenceiVSP_005315386 – 428Missing in isoform 6, isoform 16 and isoform 17. CuratedAdd BLAST43
Alternative sequenceiVSP_005316506Q → R in isoform 7 and isoform 14. 1 Publication1
Alternative sequenceiVSP_005317507 – 535Missing in isoform 7 and isoform 14. 1 PublicationAdd BLAST29
Alternative sequenceiVSP_005318536N → R in isoform 8, isoform 13 and isoform 14. 1 Publication1
Alternative sequenceiVSP_005319537 – 604Missing in isoform 8, isoform 13 and isoform 14. 1 PublicationAdd BLAST68
Alternative sequenceiVSP_043575605 – 625Missing in isoform 18. 1 PublicationAdd BLAST21
Alternative sequenceiVSP_005320675R → S in isoform 9 and isoform 15. 1 Publication1
Alternative sequenceiVSP_005321676 – 742Missing in isoform 9 and isoform 15. 1 PublicationAdd BLAST67

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
M24915 mRNA Translation: AAA35674.1
M59040 mRNA Translation: AAA51950.1
X55150 mRNA Translation: CAA38951.1
X56794 mRNA Translation: CAA40133.1
X66733 mRNA Translation: CAA47271.1
L05423
, L05407, L05408, L05409, L05410, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13622.1
L05423
, L05407, L05408, L05410, L05411, L05412, L05414, L05415, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13623.1
L05424
, L05407, L05408, L05410, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13624.1
L05424
, L05407, L05408, L05410, L05411, L05412, L05414, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13625.1
L05424
, L05407, L05408, L05410, L05411, L05412, L05414, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13626.1
L05424
, L05407, L05408, L05410, L05417, L05418, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13627.1
L05424
, L05407, L05408, L05410, L05411, L05412, L05414, L05415, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13628.1
AJ251595 mRNA Translation: CAB61878.1
S66400 mRNA Translation: AAB27917.1
S66400 mRNA Translation: AAB27918.2
S66400 mRNA Translation: AAB27919.1
AF098641 mRNA Translation: AAC70782.1
U40373 mRNA Translation: AAA82949.1
AY101192 mRNA Translation: AAM50040.1
AY101193 mRNA Translation: AAM50041.1
EF581837 mRNA Translation: ABQ59315.1
FJ216964 mRNA Translation: ACI46596.1
AL832642 mRNA Translation: CAD89965.1
AL133330 Genomic DNA No translation available.
AL136989 Genomic DNA No translation available.
AL356215 Genomic DNA No translation available.
CH471064 Genomic DNA Translation: EAW68147.1
CH471064 Genomic DNA Translation: EAW68148.1
CH471064 Genomic DNA Translation: EAW68149.1
CH471064 Genomic DNA Translation: EAW68151.1
CH471064 Genomic DNA Translation: EAW68152.1
BC004372 mRNA Translation: AAH04372.1
BC067348 mRNA Translation: AAH67348.1
M25078 mRNA Translation: AAA36138.1
X55938 mRNA Translation: CAA39404.1
S72928 Genomic DNA Translation: AAB30429.1
X62739 mRNA Translation: CAA44602.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS31455.1 [P16070-4]
CCDS31456.1 [P16070-10]
CCDS31457.1 [P16070-12]
CCDS31458.1 [P16070-19]
CCDS55754.1 [P16070-11]
CCDS55755.1 [P16070-18]
CCDS7897.1 [P16070-1]

Protein sequence database of the Protein Information Resource

More...
PIRi
A47195
I37369
I77371
I77372
JH0417
JH0518
S13530
S24222

NCBI Reference Sequences

More...
RefSeqi
NP_000601.3, NM_000610.3 [P16070-1]
NP_001001389.1, NM_001001389.1 [P16070-4]
NP_001001390.1, NM_001001390.1 [P16070-10]
NP_001001391.1, NM_001001391.1 [P16070-12]
NP_001001392.1, NM_001001392.1 [P16070-19]
NP_001189484.1, NM_001202555.1 [P16070-11]
NP_001189485.1, NM_001202556.1 [P16070-18]
NP_001189486.1, NM_001202557.1 [P16070-15]
XP_011518790.1, XM_011520488.1 [P16070-13]

UniGene gene-oriented nucleotide sequence clusters

More...
UniGenei
Hs.502328

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENST00000263398; ENSP00000263398; ENSG00000026508 [P16070-12]
ENST00000278386; ENSP00000278386; ENSG00000026508 [P16070-19]
ENST00000352818; ENSP00000309732; ENSG00000026508 [P16070-18]
ENST00000415148; ENSP00000389830; ENSG00000026508 [P16070-4]
ENST00000428726; ENSP00000398632; ENSG00000026508 [P16070-1]
ENST00000433892; ENSP00000392331; ENSG00000026508 [P16070-10]
ENST00000434472; ENSP00000404447; ENSG00000026508 [P16070-11]

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
960

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
hsa:960

UCSC genome browser

More...
UCSCi
uc001mvu.4 human [P16070-1]

Keywords - Coding sequence diversityi

Alternative splicing, Polymorphism

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

<p>This subsection of the <a href="http://www.uniprot.org/manual/cross_references_section">Cross-references</a> section provides links to various web resources that are relevant for a specific protein.<p><a href='/help/web_resource' target='_top'>More...</a></p>Web resourcesi

dbRBC/BGMUT

Blood group antigen gene mutation database

Wikipedia

CD44 entry

Atlas of Genetics and Cytogenetics in Oncology and Haematology

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M24915 mRNA Translation: AAA35674.1
M59040 mRNA Translation: AAA51950.1
X55150 mRNA Translation: CAA38951.1
X56794 mRNA Translation: CAA40133.1
X66733 mRNA Translation: CAA47271.1
L05423
, L05407, L05408, L05409, L05410, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13622.1
L05423
, L05407, L05408, L05410, L05411, L05412, L05414, L05415, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13623.1
L05424
, L05407, L05408, L05410, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13624.1
L05424
, L05407, L05408, L05410, L05411, L05412, L05414, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13625.1
L05424
, L05407, L05408, L05410, L05411, L05412, L05414, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13626.1
L05424
, L05407, L05408, L05410, L05417, L05418, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13627.1
L05424
, L05407, L05408, L05410, L05411, L05412, L05414, L05415, L05416, L05417, L05418, L05419, L05420, L05421, L05422, M69215 Genomic DNA Translation: AAB13628.1
AJ251595 mRNA Translation: CAB61878.1
S66400 mRNA Translation: AAB27917.1
S66400 mRNA Translation: AAB27918.2
S66400 mRNA Translation: AAB27919.1
AF098641 mRNA Translation: AAC70782.1
U40373 mRNA Translation: AAA82949.1
AY101192 mRNA Translation: AAM50040.1
AY101193 mRNA Translation: AAM50041.1
EF581837 mRNA Translation: ABQ59315.1
FJ216964 mRNA Translation: ACI46596.1
AL832642 mRNA Translation: CAD89965.1
AL133330 Genomic DNA No translation available.
AL136989 Genomic DNA No translation available.
AL356215 Genomic DNA No translation available.
CH471064 Genomic DNA Translation: EAW68147.1
CH471064 Genomic DNA Translation: EAW68148.1
CH471064 Genomic DNA Translation: EAW68149.1
CH471064 Genomic DNA Translation: EAW68151.1
CH471064 Genomic DNA Translation: EAW68152.1
BC004372 mRNA Translation: AAH04372.1
BC067348 mRNA Translation: AAH67348.1
M25078 mRNA Translation: AAA36138.1
X55938 mRNA Translation: CAA39404.1
S72928 Genomic DNA Translation: AAB30429.1
X62739 mRNA Translation: CAA44602.1
CCDSiCCDS31455.1 [P16070-4]
CCDS31456.1 [P16070-10]
CCDS31457.1 [P16070-12]
CCDS31458.1 [P16070-19]
CCDS55754.1 [P16070-11]
CCDS55755.1 [P16070-18]
CCDS7897.1 [P16070-1]
PIRiA47195
I37369
I77371
I77372
JH0417
JH0518
S13530
S24222
RefSeqiNP_000601.3, NM_000610.3 [P16070-1]
NP_001001389.1, NM_001001389.1 [P16070-4]
NP_001001390.1, NM_001001390.1 [P16070-10]
NP_001001391.1, NM_001001391.1 [P16070-12]
NP_001001392.1, NM_001001392.1 [P16070-19]
NP_001189484.1, NM_001202555.1 [P16070-11]
NP_001189485.1, NM_001202556.1 [P16070-18]
NP_001189486.1, NM_001202557.1 [P16070-15]
XP_011518790.1, XM_011520488.1 [P16070-13]
UniGeneiHs.502328

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1POZNMR-A20-178[»]
1UUHX-ray2.20A/B20-178[»]
2I83NMR-A21-178[»]
4PZ3X-ray1.08A/B18-170[»]
4PZ4X-ray1.60A/B18-171[»]
ProteinModelPortaliP16070
SMRiP16070
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi107398, 130 interactors
CORUMiP16070
DIPiDIP-1121N
ELMiP16070
IntActiP16070, 57 interactors
MINTiP16070
STRINGi9606.ENSP00000398632

Chemistry databases

BindingDBiP16070
ChEMBLiCHEMBL3232692
DrugBankiDB08818 Hyaluronic acid

PTM databases

GlyConnecti736
iPTMnetiP16070
PhosphoSitePlusiP16070
SwissPalmiP16070
UniCarbKBiP16070

Polymorphism and mutation databases

BioMutaiCD44
DMDMi308153615

2D gel databases

SWISS-2DPAGEiP16070

Proteomic databases

EPDiP16070
MaxQBiP16070
PaxDbiP16070
PeptideAtlasiP16070
PRIDEiP16070
ProteomicsDBi53266
53267 [P16070-10]
53268 [P16070-11]
53269 [P16070-12]
53270 [P16070-13]
53271 [P16070-14]
53272 [P16070-15]
53273 [P16070-16]
53274 [P16070-17]
53275 [P16070-18]
53276 [P16070-19]
53277 [P16070-2]
53278 [P16070-3]
53279 [P16070-4]
53280 [P16070-5]
53281 [P16070-6]
53282 [P16070-7]
53283 [P16070-8]
53284 [P16070-9]
TopDownProteomicsiP16070-12 [P16070-12]
P16070-14 [P16070-14]
P16070-18 [P16070-18]
P16070-4 [P16070-4]
P16070-7 [P16070-7]

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
960
Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENST00000263398; ENSP00000263398; ENSG00000026508 [P16070-12]
ENST00000278386; ENSP00000278386; ENSG00000026508 [P16070-19]
ENST00000352818; ENSP00000309732; ENSG00000026508 [P16070-18]
ENST00000415148; ENSP00000389830; ENSG00000026508 [P16070-4]
ENST00000428726; ENSP00000398632; ENSG00000026508 [P16070-1]
ENST00000433892; ENSP00000392331; ENSG00000026508 [P16070-10]
ENST00000434472; ENSP00000404447; ENSG00000026508 [P16070-11]
GeneIDi960
KEGGihsa:960
UCSCiuc001mvu.4 human [P16070-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
960
DisGeNETi960
EuPathDBiHostDB:ENSG00000026508.16

GeneCards: human genes, protein and diseases

More...
GeneCardsi
CD44
HGNCiHGNC:1681 CD44
HPAiCAB000112
CAB000316
HPA005785
MIMi107269 gene
172290 gene
609027 phenotype
neXtProtiNX_P16070
OpenTargetsiENSG00000026508
PharmGKBiPA26221

GenAtlas: human gene database

More...
GenAtlasi
Search...

Phylogenomic databases

eggNOGiENOG410IZCP Eukaryota
ENOG4111S6T LUCA
GeneTreeiENSGT00530000063822
HOGENOMiHOG000115236
HOVERGENiHBG003850
InParanoidiP16070
KOiK06256
OMAiSHPMGRG
OrthoDBiEOG091G0F98
PhylomeDBiP16070
TreeFamiTF334173

Enzyme and pathway databases

ReactomeiR-HSA-1474228 Degradation of the extracellular matrix
R-HSA-202733 Cell surface interactions at the vascular wall
R-HSA-216083 Integrin cell surface interactions
R-HSA-2160916 Hyaluronan uptake and degradation
R-HSA-6798695 Neutrophil degranulation
R-HSA-877300 Interferon gamma signaling
SIGNORiP16070

Miscellaneous databases

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...
ChiTaRSi
CD44 human
EvolutionaryTraceiP16070

The Gene Wiki collection of pages on human genes and proteins

More...
GeneWikii
CD44

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...
GenomeRNAii
960

Protein Ontology

More...
PROi
PR:P16070

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSG00000026508 Expressed in 228 organ(s), highest expression level in parotid gland
ExpressionAtlasiP16070 baseline and differential
GenevisibleiP16070 HS

Family and domain databases

Gene3Di3.10.100.10, 1 hit
InterProiView protein in InterPro
IPR016186 C-type_lectin-like/link_sf
IPR001231 CD44_antigen
IPR016187 CTDL_fold
IPR000538 Link_dom
PANTHERiPTHR10225:SF6 PTHR10225:SF6, 1 hit
PfamiView protein in Pfam
PF00193 Xlink, 1 hit
PRINTSiPR00658 CD44
PR01265 LINKMODULE
SMARTiView protein in SMART
SM00445 LINK, 1 hit
SUPFAMiSSF56436 SSF56436, 1 hit
PROSITEiView protein in PROSITE
PS01241 LINK_1, 1 hit
PS50963 LINK_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiCD44_HUMAN
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P16070
Secondary accession number(s): A5YRN9
, B6EAT9, D3DR12, D3DR13, O95370, P22511, Q04858, Q13419, Q13957, Q13958, Q13959, Q13960, Q13961, Q13967, Q13968, Q13980, Q15861, Q16064, Q16065, Q16066, Q16208, Q16522, Q86T72, Q86Z27, Q8N694, Q92493, Q96J24, Q9H5A5, Q9UC28, Q9UC29, Q9UC30, Q9UCB0, Q9UJ36
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1990
Last sequence update: October 5, 2010
Last modified: December 5, 2018
This is version 224 of the entry and version 3 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. Human chromosome 11
    Human chromosome 11: entries, gene names and cross-references to MIM
  3. Blood group antigen proteins
    Nomenclature of blood group antigens and list of entries
  4. Human cell differentiation molecules
    CD nomenclature of surface proteins of human leucocytes and list of entries
  5. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  6. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
  7. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again