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Entry version 121 (12 Aug 2020)
Sequence version 1 (01 Mar 2005)
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Protein

C-C motif chemokine 21a

Gene

Ccl21a

Organism
Mus musculus (Mouse)
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

Inhibits hemopoiesis and stimulates chemotaxis. Chemotactic in vitro for thymocytes and activated T-cells, but not for B-cells, macrophages, or neutrophils. Potent mesangial cell chemoattractant. Shows preferential activity towards naive T-cells. May play a role in mediating homing of lymphocytes to secondary lymphoid organs.

Miscellaneous

Three genes code for Ccl21 in mouse. Ccl21b and Ccl21c produce identical proteins while the protein produced by Ccl21a differs at only one position. Ccl21b and Ccl21c have 'Leu-65' (6Ckine-Leu) while Ccl21a has Ser-65 (6Ckine-Ser).

<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

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 functionCytokine
Biological processChemotaxis, Inflammatory response

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-MMU-380108, Chemokine receptors bind chemokines
R-MMU-418594, G alpha (i) signalling events

<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%5Fand%5Ftaxonomy%5Fsection">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:
C-C motif chemokine 21a
Alternative name(s):
6Ckine
Beta-chemokine exodus-2
Small-inducible cytokine A21a
Thymus-derived chemotactic agent 4
Short name:
TCA4
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:Ccl21a
Synonyms:Scya21, Scya21a
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiMus musculus (Mouse)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri10090 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000000589 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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 4

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...
MGIi
MGI:1349183, Ccl21a

<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 & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Secreted

<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

<p>This subsection of the 'Pathology and Biotech' section provides information on the disease(s) associated with genetic variations in a given protein. The information is extracted from the scientific literature and diseases that are also described in the <a href="http://www.ncbi.nlm.nih.gov/sites/entrez?db=omim">OMIM</a> database are represented with a <a href="http://www.uniprot.org/diseases">controlled vocabulary</a> in the following way:<p><a href='/help/involvement_in_disease' target='_top'>More...</a></p>Involvement in diseasei

Mice carrying an autosomal recessive mutation designated paucity of lymph node T-cells (plt) show dramatically reduced numbers of T-cells in lymph nodes, Peyer patches, and the white pulp of the spleen. Plt seems to correspond to Scya21b.1 Publication

<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 – 23Sequence analysisAdd BLAST23
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000000522324 – 133C-C motif chemokine 21aAdd BLAST110

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 bondi31 ↔ 57By similarity
Disulfide bondi32 ↔ 75By similarity
Disulfide bondi103 ↔ 122Sequence analysis

Keywords - PTMi

Disulfide bond

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P84444

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P84444

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

More...
PaxDbi
P84444

PeptideAtlas

More...
PeptideAtlasi
P84444

PRoteomics IDEntifications database

More...
PRIDEi
P84444

<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

Expressed strongly in lung, spleen, thymus, peripheral and mesentric lymph nodes. Also expressed in the testis, kidney, liver, and heart.

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSMUSG00000094686, Expressed in thymus and 40 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P84444, MM

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Binds to CCR7 and to CXCR3.

Interacts with PDPN; relocalizes PDPN to the basolateral membrane.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
10090.ENSMUSP00000136780

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
P84444, protein

<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

3D structure databases

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

More...
SMRi
P84444

Database of comparative protein structure models

More...
ModBasei
Search...

<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

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>Regioni98 – 133C-terminal basic extensionAdd BLAST36

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG502S8D1, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00970000193327

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_141716_3_2_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P84444

KEGG Orthology (KO)

More...
KOi
K16062

Identification of Orthologs from Complete Genome Data

More...
OMAi
CKRTEQP

Database of Orthologous Groups

More...
OrthoDBi
1542802at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P84444

TreeFam database of animal gene trees

More...
TreeFami
TF338224

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR030593, CCL21
IPR039809, Chemokine_b/g/d
IPR001811, Chemokine_IL8-like_dom
IPR036048, Interleukin_8-like_sf

The PANTHER Classification System

More...
PANTHERi
PTHR12015, PTHR12015, 1 hit
PTHR12015:SF72, PTHR12015:SF72, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00048, IL8, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00199, SCY, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54117, SSF54117, 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%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

P84444-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAQMMTLSLL SLVLALCIPW TQGSDGGGQD CCLKYSQKKI PYSIVRGYRK
60 70 80 90 100
QEPSLGCPIP AILFSPRKHS KPELCANPEE GWVQNLMRRL DQPPAPGKQS
110 120 130
PGCRKNRGTS KSGKKGKGSK GCKRTEQTQP SRG
Length:133
Mass (Da):14,558
Last modified:March 1, 2005 - v1
<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:iABD2750A320B3719
GO

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
AF001980 mRNA Translation: AAB86595.1
AF006637 mRNA Translation: AAB61440.1
AF171086 Genomic DNA Translation: AAF16901.1
AF035684 Genomic DNA Translation: AAC82613.1
AF307985 Genomic DNA Translation: AAG45833.1
AK144258 mRNA Translation: BAE25802.1
AK155924 mRNA Translation: BAE33505.1
AL772334 Genomic DNA No translation available.
BC025974 mRNA Translation: AAH25974.1
BC028747 mRNA Translation: AAH28747.1
BC038120 mRNA Translation: AAH38120.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS18081.1

NCBI Reference Sequences

More...
RefSeqi
NP_001180596.1, NM_001193667.1
NP_035254.1, NM_011124.4

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000095114; ENSMUSP00000092732; ENSMUSG00000094686
ENSMUST00000178919; ENSMUSP00000136780; ENSMUSG00000095320

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
100504362
18829

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:100504362
mmu:18829

UCSC genome browser

More...
UCSCi
uc008sny.2, mouse

<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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF001980 mRNA Translation: AAB86595.1
AF006637 mRNA Translation: AAB61440.1
AF171086 Genomic DNA Translation: AAF16901.1
AF035684 Genomic DNA Translation: AAC82613.1
AF307985 Genomic DNA Translation: AAG45833.1
AK144258 mRNA Translation: BAE25802.1
AK155924 mRNA Translation: BAE33505.1
AL772334 Genomic DNA No translation available.
BC025974 mRNA Translation: AAH25974.1
BC028747 mRNA Translation: AAH28747.1
BC038120 mRNA Translation: AAH38120.1
CCDSiCCDS18081.1
RefSeqiNP_001180596.1, NM_001193667.1
NP_035254.1, NM_011124.4

3D structure databases

SMRiP84444
ModBaseiSearch...

Protein-protein interaction databases

STRINGi10090.ENSMUSP00000136780

Proteomic databases

EPDiP84444
MaxQBiP84444
PaxDbiP84444
PeptideAtlasiP84444
PRIDEiP84444

Genome annotation databases

EnsembliENSMUST00000095114; ENSMUSP00000092732; ENSMUSG00000094686
ENSMUST00000178919; ENSMUSP00000136780; ENSMUSG00000095320
GeneIDi100504362
18829
KEGGimmu:100504362
mmu:18829
UCSCiuc008sny.2, mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
18829
MGIiMGI:1349183, Ccl21a

Phylogenomic databases

eggNOGiENOG502S8D1, Eukaryota
GeneTreeiENSGT00970000193327
HOGENOMiCLU_141716_3_2_1
InParanoidiP84444
KOiK16062
OMAiCKRTEQP
OrthoDBi1542802at2759
PhylomeDBiP84444
TreeFamiTF338224

Enzyme and pathway databases

ReactomeiR-MMU-380108, Chemokine receptors bind chemokines
R-MMU-418594, G alpha (i) signalling events

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
100504362, 1 hit in 7 CRISPR screens
18829, 0 hits in 11 CRISPR screens

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

More...
ChiTaRSi
Ccl21a, mouse

Protein Ontology

More...
PROi
PR:P84444
RNActiP84444, protein

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000094686, Expressed in thymus and 40 other tissues
GenevisibleiP84444, MM

Family and domain databases

InterProiView protein in InterPro
IPR030593, CCL21
IPR039809, Chemokine_b/g/d
IPR001811, Chemokine_IL8-like_dom
IPR036048, Interleukin_8-like_sf
PANTHERiPTHR12015, PTHR12015, 1 hit
PTHR12015:SF72, PTHR12015:SF72, 1 hit
PfamiView protein in Pfam
PF00048, IL8, 1 hit
SMARTiView protein in SMART
SM00199, SCY, 1 hit
SUPFAMiSSF54117, SSF54117, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
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 nameiCC21A_MOUSE
<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: P84444
Secondary accession number(s): O09002
, O09006, Q3U1J2, Q91V84
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 1, 2005
Last sequence update: March 1, 2005
Last modified: August 12, 2020
This is version 121 of the entry and version 1 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

<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

Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. SIMILARITY comments
    Index of protein domains and families
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