KRT2 keratin 2 [Homo sapiens (human)] - Gene

Summary

Official Symbol: KRT2provided by HGNC
Official Full Name: keratin 2provided by HGNC
Primary source: HGNC:HGNC:6439
See related: Ensembl:ENSG00000172867 MIM:600194; AllianceGenome:HGNC:6439
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: K2e; KRTE; CK-2e; KRT2A; KRT2E
Summary: The protein encoded by this gene is a member of the keratin gene family. The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. This type II cytokeratin is expressed largely in the upper spinous layer of epidermal keratinocytes and mutations in this gene have been associated with bullous congenital ichthyosiform erythroderma. The type II cytokeratins are clustered in a region of chromosome 12q12-q13. [provided by RefSeq, Jul 2008]
Expression: Restricted expression toward skin (RPKM 1015.4) See more
Orthologs: mouse all
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Genomic context

Location:: 12q13.13

Exon count:: 9

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	12	NC_000012.12 (52644558..52652211, complement)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	12	NC_060936.1 (52609117..52616770, complement)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	12	NC_000012.11 (53038342..53045995, complement)

Chromosome 12 - NC_000012.12 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: HPA RNA-seq normal tissues HPA RNA-seq normal tissues
Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
BioProject: PRJEB4337
Publication: PMID 24309898
Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Acral lamellar ichthyosis with amino acid substitution in the C-terminus of keratin 2.
Title: Acral lamellar ichthyosis with amino acid substitution in the C-terminus of keratin 2.
First Case of KRT2 Epidermolytic Nevus and Novel Clinical and Genetic Findings in 26 Italian Patients with Keratinopathic Ichthyoses.
Title: First Case of KRT2 Epidermolytic Nevus and Novel Clinical and Genetic Findings in 26 Italian Patients with Keratinopathic Ichthyoses.
Serum lipids, retinoic acid and phenol red differentially regulate expression of keratins K1, K10 and K2 in cultured keratinocytes.
Title: Serum lipids, retinoic acid and phenol red differentially regulate expression of keratins K1, K10 and K2 in cultured keratinocytes.
Report genetic/clinical spectrum of KRT2 mutations in keratinopathic ichthyosis.
Title: Expanding the Clinical and Genetic Spectrum of KRT1, KRT2 and KRT10 Mutations in Keratinopathic Ichthyosis.
We describe two children with superficial epidermolytic ichthyosis confirmed by genetic testing, including one with a novel mutation.
Title: Superficial epidermolytic ichthyosis: a report of two families.
novel H1 domain mutation in a family with icthyosis bullosa Siemens
Title: A novel H1 domain mutation in the keratin 2 gene in a Japanese family with ichthyosis bullosa of Siemens.
influence of keratinocyte activation, proliferation, and keratinization on K2e expression in samples of cutaneous and oral lesions (keratin K2e)
Title: Expression of keratin K2e in cutaneous and oral lesions: association with keratinocyte activation, proliferation, and keratinization.

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Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description	Tests
Ichthyosis bullosa of Siemens MedGen: C0432306 OMIM: 146800 GeneReviews: Not available	Compare labs

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

GDB:437550 (e-PCR)
- UniSTS:157247

D12S1896 (e-PCR)
- UniSTS:58969

D12S758 (e-PCR)
- UniSTS:148907

KRT2A_890 (e-PCR)
- UniSTS:277444

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables cytoskeletal protein binding	IEA Inferred from Electronic Annotation more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables structural constituent of cytoskeleton	TAS Traceable Author Statement more info	PubMed
enables structural constituent of skin epidermis	IBA Inferred from Biological aspect of Ancestor more info
enables structural constituent of skin epidermis	IDA Inferred from Direct Assay more info	PubMed

Process	Evidence Code	Pubs
involved_in epidermis development	TAS Traceable Author Statement more info	PubMed
involved_in intermediate filament organization	IBA Inferred from Biological aspect of Ancestor more info
involved_in keratinization	IBA Inferred from Biological aspect of Ancestor more info
involved_in keratinization	IDA Inferred from Direct Assay more info	PubMed
involved_in keratinocyte activation	IDA Inferred from Direct Assay more info	PubMed
involved_in keratinocyte development	IEA Inferred from Electronic Annotation more info
involved_in keratinocyte migration	IDA Inferred from Direct Assay more info	PubMed
involved_in keratinocyte proliferation	IDA Inferred from Direct Assay more info	PubMed
involved_in peptide cross-linking	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of epidermis development	ISS Inferred from Sequence or Structural Similarity more info

Component	Evidence Code	Pubs
located_in cornified envelope	IDA Inferred from Direct Assay more info	PubMed
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	TAS Traceable Author Statement more info
located_in extracellular exosome	HDA more info	PubMed
located_in extracellular space	HDA more info	PubMed
located_in intermediate filament	TAS Traceable Author Statement more info	PubMed
is_active_in keratin filament	IBA Inferred from Biological aspect of Ancestor more info
located_in membrane	HDA more info	PubMed
located_in nucleus	HDA more info	PubMed

General protein information

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Preferred Names: keratin, type II cytoskeletal 2 epidermal

Names: cytokeratin-2e; epithelial keratin-2e; keratin 2, type II; keratin-2 epidermis; keratin-2e; type-II keratin Kb2

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.