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Entry version 174 (18 Sep 2019)
Sequence version 1 (01 Jun 1994)
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Protein

Keratin, type I cytoskeletal 20

Gene

KRT20

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

Plays a significant role in maintaining keratin filament organization in intestinal epithelia. When phosphorylated, plays a role in the secretion of mucin in the small intestine (By similarity).By similarity2 Publications

Miscellaneous

There are two types of cytoskeletal and microfibrillar keratin: I (acidic; 40-55 kDa) and II (neutral to basic; 56-70 kDa).

<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

Biological processApoptosis

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-HSA-6805567 Keratinization
R-HSA-6809371 Formation of the cornified envelope

<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:
Keratin, type I cytoskeletal 20
Alternative name(s):
Cytokeratin-20
Short name:
CK-20
Keratin-20
Short name:
K20
Protein IT
<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:KRT20
<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 17

Organism-specific databases

Human Gene Nomenclature Database

More...
HGNCi
HGNC:20412 KRT20

Online Mendelian Inheritance in Man (OMIM)

More...
MIMi
608218 gene

neXtProt; the human protein knowledge platform

More...
neXtProti
NX_P35900

<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

Cytoplasm, Intermediate filament, Keratin

<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

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi13S → A: Promotes keratin filament disassembly. 1 Publication1
Mutagenesisi14S → A: No effect on keratin filament organization. 1 Publication1
Mutagenesisi80R → H: Leads to collapsed filaments. 1 Publication1

Organism-specific databases

DisGeNET

More...
DisGeNETi
54474

Open Targets

More...
OpenTargetsi
ENSG00000171431

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...
PharmGKBi
PA134938907

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...
Pharosi
P35900

Polymorphism and mutation databases

BioMuta curated single-nucleotide variation and disease association database

More...
BioMutai
KRT20

Domain mapping of disease mutations (DMDM)

More...
DMDMi
547750

<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 describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000636751 – 424Keratin, type I cytoskeletal 20Add BLAST424

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 residuei13Phosphoserine; by MAPKAPK2, MAPKAPK3 and PKC1 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

Hyperphosphorylation at Ser-13 occurs during the early stages of apoptosis but becomes less prominent during the later stages. Phosphorylation at Ser-13 also increases in response to stress brought on by cell injury (By similarity).By similarity
Proteolytically cleaved by caspases during apoptosis. Cleavage occurs at Asp-228.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections (‘Function’, ‘PTM / Processing’, ‘Pathology and Biotech’) according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei228 – 229Cleavage; by caspases1 Publication2

Keywords - PTMi

Phosphoprotein

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P35900

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...
MassIVEi
P35900

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

More...
PaxDbi
P35900

PeptideAtlas

More...
PeptideAtlasi
P35900

PRoteomics IDEntifications database

More...
PRIDEi
P35900

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
55160

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P35900

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

More...
PhosphoSitePlusi
P35900

SwissPalm database of S-palmitoylation events

More...
SwissPalmi
P35900

<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 predominantly in the intestinal epithelium. Expressed in luminal cells of colonic mucosa. Also expressed in the Merkel cells of keratinized oral mucosa; specifically at the tips of some rete ridges of the gingival mucosa, in the basal layer of the palatal mucosa and in the taste buds of lingual mucosa.2 Publications

<p>This subsection of the ‘Expression’ section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

First detected at embryonic week 8 in individual 'converted' simple epithelial cells of the developing intestinal mucosa. In later fetal stages, synthesis extends over most goblet cells and a variable number of villus enterocytes. In the developing gastric and intestinal mucosa, expressed in all enterocytes and goblet cells as well as certain 'low-differentiated' columnar cells, whereas the neuroendocrine and Paneth cells are negative.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSG00000171431 Expressed in 86 organ(s), highest expression level in colon

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P35900 HS

Organism-specific databases

Human Protein Atlas

More...
HPAi
CAB000032
HPA024309
HPA024684
HPA027236

<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

Heterotetramer of two type I and two type II keratins. Associates with KRT8.

<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
119979, 30 interactors

Protein interaction database and analysis system

More...
IntActi
P35900, 46 interactors

Molecular INTeraction database

More...
MINTi
P35900

STRING: functional protein association networks

More...
STRINGi
9606.ENSP00000167588

<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
P35900

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

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>Domaini70 – 381IF rodPROSITE-ProRule annotationAdd BLAST312

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>Regioni1 – 69HeadAdd BLAST69
Regioni70 – 105Coil 1AAdd BLAST36
Regioni106 – 123Linker 1Add BLAST18
Regioni124 – 215Coil 1BAdd BLAST92
Regioni216 – 238Linker 12Add BLAST23
Regioni239 – 377Coil 2Add BLAST139
Regioni378 – 424TailAdd BLAST47

<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

Belongs to the intermediate filament family.PROSITE-ProRule annotation

Keywords - Domaini

Coiled coil

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IVBB Eukaryota
ENOG410YGAC LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000161855

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000230975

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P35900

KEGG Orthology (KO)

More...
KOi
K07604

Identification of Orthologs from Complete Genome Data

More...
OMAi
YSAYYKQ

Database of Orthologous Groups

More...
OrthoDBi
798081at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P35900

TreeFam database of animal gene trees

More...
TreeFami
TF332742

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.5.1160, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR018039 IF_conserved
IPR039008 IF_rod_dom
IPR042180 IF_rod_dom_coil1B
IPR002957 Keratin_I

The PANTHER Classification System

More...
PANTHERi
PTHR23239 PTHR23239, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00038 Filament, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01248 TYPE1KERATIN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM01391 Filament, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00226 IF_ROD_1, 1 hit
PS51842 IF_ROD_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>. 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_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.

P35900-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MDFSRRSFHR SLSSSLQAPV VSTVGMQRLG TTPSVYGGAG GRGIRISNSR
60 70 80 90 100
HTVNYGSDLT GGGDLFVGNE KMAMQNLNDR LASYLEKVRT LEQSNSKLEV
110 120 130 140 150
QIKQWYETNA PRAGRDYSAY YRQIEELRSQ IKDAQLQNAR CVLQIDNAKL
160 170 180 190 200
AAEDFRLKYE TERGIRLTVE ADLQGLNKVF DDLTLHKTDL EIQIEELNKD
210 220 230 240 250
LALLKKEHQE EVDGLHKHLG NTVNVEVDAA PGLNLGVIMN EMRQKYEVMA
260 270 280 290 300
QKNLQEAKEQ FERQTAVLQQ QVTVNTEELK GTEVQLTELR RTSQSLEIEL
310 320 330 340 350
QSHLSMKESL EHTLEETKAR YSSQLANLQS LLSSLEAQLM QIRSNMERQN
360 370 380 390 400
NEYHILLDIK TRLEQEIATY RRLLEGEDVK TTEYQLSTLE ERDIKKTRKI
410 420
KTVVQEVVDG KVVSSEVKEV EENI
Length:424
Mass (Da):48,487
Last modified:June 1, 1994 - 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:iA8EF5A518C73CCE5
GO

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 conflicti161T → S in CAA51914 (PubMed:7689500).Curated1
Sequence conflicti349Q → P in CAA51914 (PubMed:7689500).Curated1
Sequence conflicti398R → T in CAA51914 (PubMed:7689500).Curated1

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_0363674S → R in a colorectal cancer sample; somatic mutation. 1 Publication1
Natural variantiVAR_024489129S → N1 PublicationCorresponds to variant dbSNP:rs7212483Ensembl.1
Natural variantiVAR_064726214G → C Found in a renal cell carcinoma sample; somatic mutation. 1 Publication1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
X73501 Genomic DNA Translation: CAA51913.1
AK312744 mRNA Translation: BAG35614.1
BC031559 mRNA Translation: AAH31559.1
X73502 mRNA Translation: CAA51914.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS11379.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S37780

NCBI Reference Sequences

More...
RefSeqi
NP_061883.1, NM_019010.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENST00000167588; ENSP00000167588; ENSG00000171431
ENST00000576098; ENSP00000460501; ENSG00000263057

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
54474

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
hsa:54474

UCSC genome browser

More...
UCSCi
uc002hvl.4 human

Keywords - Coding sequence diversityi

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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X73501 Genomic DNA Translation: CAA51913.1
AK312744 mRNA Translation: BAG35614.1
BC031559 mRNA Translation: AAH31559.1
X73502 mRNA Translation: CAA51914.1
CCDSiCCDS11379.1
PIRiS37780
RefSeqiNP_061883.1, NM_019010.2

3D structure databases

SMRiP35900
ModBaseiSearch...

Protein-protein interaction databases

BioGridi119979, 30 interactors
IntActiP35900, 46 interactors
MINTiP35900
STRINGi9606.ENSP00000167588

PTM databases

iPTMnetiP35900
PhosphoSitePlusiP35900
SwissPalmiP35900

Polymorphism and mutation databases

BioMutaiKRT20
DMDMi547750

Proteomic databases

jPOSTiP35900
MassIVEiP35900
PaxDbiP35900
PeptideAtlasiP35900
PRIDEiP35900
ProteomicsDBi55160

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
54474

Genome annotation databases

EnsembliENST00000167588; ENSP00000167588; ENSG00000171431
ENST00000576098; ENSP00000460501; ENSG00000263057
GeneIDi54474
KEGGihsa:54474
UCSCiuc002hvl.4 human

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
54474
DisGeNETi54474

GeneCards: human genes, protein and diseases

More...
GeneCardsi
KRT20
HGNCiHGNC:20412 KRT20
HPAiCAB000032
HPA024309
HPA024684
HPA027236
MIMi608218 gene
neXtProtiNX_P35900
OpenTargetsiENSG00000171431
PharmGKBiPA134938907

GenAtlas: human gene database

More...
GenAtlasi
Search...

Phylogenomic databases

eggNOGiENOG410IVBB Eukaryota
ENOG410YGAC LUCA
GeneTreeiENSGT00940000161855
HOGENOMiHOG000230975
InParanoidiP35900
KOiK07604
OMAiYSAYYKQ
OrthoDBi798081at2759
PhylomeDBiP35900
TreeFamiTF332742

Enzyme and pathway databases

ReactomeiR-HSA-6805567 Keratinization
R-HSA-6809371 Formation of the cornified envelope

Miscellaneous databases

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

More...
ChiTaRSi
KRT20 human

The Gene Wiki collection of pages on human genes and proteins

More...
GeneWikii
Keratin_20

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

More...
GenomeRNAii
54474
PharosiP35900

Protein Ontology

More...
PROi
PR:P35900

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSG00000171431 Expressed in 86 organ(s), highest expression level in colon
GenevisibleiP35900 HS

Family and domain databases

Gene3Di1.20.5.1160, 1 hit
InterProiView protein in InterPro
IPR018039 IF_conserved
IPR039008 IF_rod_dom
IPR042180 IF_rod_dom_coil1B
IPR002957 Keratin_I
PANTHERiPTHR23239 PTHR23239, 1 hit
PfamiView protein in Pfam
PF00038 Filament, 1 hit
PRINTSiPR01248 TYPE1KERATIN
SMARTiView protein in SMART
SM01391 Filament, 1 hit
PROSITEiView protein in PROSITE
PS00226 IF_ROD_1, 1 hit
PS51842 IF_ROD_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

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ProtoNeti
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MobiDB: a database of protein disorder and mobility annotations

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MobiDBi
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<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 nameiK1C20_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: P35900
Secondary accession number(s): B2R6W7
<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: June 1, 1994
Last sequence update: June 1, 1994
Last modified: September 18, 2019
This is version 174 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
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

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  3. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  4. Human chromosome 17
    Human chromosome 17: entries, gene names and cross-references to MIM
  5. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
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