KRT19 keratin 19 [Homo sapiens (human)] - Gene

Summary

Official Symbol: KRT19provided by HGNC
Official Full Name: keratin 19provided by HGNC
Primary source: HGNC:HGNC:6436
See related: Ensembl:ENSG00000171345 MIM:148020; AllianceGenome:HGNC:6436
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: K19; CK19; K1CS
Summary: The protein encoded by this gene is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Unlike its related family members, this smallest known acidic cytokeratin is not paired with a basic cytokeratin in epithelial cells. It is specifically expressed in the periderm, the transiently superficial layer that envelopes the developing epidermis. The type I cytokeratins are clustered in a region of chromosome 17q12-q21. [provided by RefSeq, Jul 2008]
Expression: Biased expression in colon (RPKM 351.9), stomach (RPKM 332.4) and 13 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 17q21.2

Exon count:: 6

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	17	NC_000017.11 (41523617..41528308, complement)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	17	NC_060941.1 (42379161..42383869, complement)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	17	NC_000017.10 (39679869..39684560, complement)

Chromosome 17 - NC_000017.11 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Predictive Value of Serum CYFRA 21-1 and CK19-2G2 for Tumor Aggressiveness and Overall Survival in Hepatitis C-Related Hepatocellular Carcinoma Among Egyptians: A Prospective Study.
Title: Predictive Value of Serum CYFRA 21-1 and CK19-2G2 for Tumor Aggressiveness and Overall Survival in Hepatitis C-Related Hepatocellular Carcinoma Among Egyptians: A Prospective Study.
Silencing CK19 regulates ferroptosis by affecting the expression of GPX4 and ACSL4 in oral squamous cell carcinoma in vivo and in vitro.
Title: Silencing CK19 regulates ferroptosis by affecting the expression of GPX4 and ACSL4 in oral squamous cell carcinoma in vivo and in vitro.
DNA methylation-associated allelic inactivation regulates Keratin 19 gene expression during pancreatic development and carcinogenesis.
Title: DNA methylation-associated allelic inactivation regulates Keratin 19 gene expression during pancreatic development and carcinogenesis.
Keratin 19 binds and regulates cytoplasmic HNRNPK mRNA targets in triple-negative breast cancer.
Title: Keratin 19 binds and regulates cytoplasmic HNRNPK mRNA targets in triple-negative breast cancer.
Clinical implications of Cytokeratin 19 expression in patients with oral squamous cell carcinoma.
Title: Clinical implications of Cytokeratin 19 expression in patients with oral squamous cell carcinoma.
Combination of CEACAM5, EpCAM and CK19 gene expressions in mediastinal lymph node micrometastasis is a prognostic factor for non-small cell lung cancer.
Title: Combination of CEACAM5, EpCAM and CK19 gene expressions in mediastinal lymph node micrometastasis is a prognostic factor for non-small cell lung cancer.
Keratin19 promotes pancreatic cancer progression and poor prognosis via activating the Hedgehog pathway.
Title: Keratin19 promotes pancreatic cancer progression and poor prognosis via activating the Hedgehog pathway.
The role of cytokeratin 19 levels in the determination of endometriosis stages.
Title: The role of cytokeratin 19 levels in the determination of endometriosis stages.
Diagnostic utility of CK19 and galectin-3 in differentiating papillary thyroid carcinoma from nonneoplastic lesions of thyroid.
Title: Diagnostic utility of CK19 and galectin-3 in differentiating papillary thyroid carcinoma from nonneoplastic lesions of thyroid.
Individual and joint influence of cytokeratin 19 and microvascular invasion on the prognosis of patients with hepatocellular carcinoma after hepatectomy.
Title: Individual and joint influence of cytokeratin 19 and microvascular invasion on the prognosis of patients with hepatocellular carcinoma after hepatectomy.

Submit: New GeneRIF Correction See all GeneRIFs (245)

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

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

PMC22705P1 (e-PCR)
- UniSTS:272147

RH71340 (e-PCR)
- UniSTS:89044

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
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 muscle	IDA Inferred from Direct Assay more info	PubMed

Process	Evidence Code	Pubs
involved_in Notch signaling pathway	IEA Inferred from Electronic Annotation more info
involved_in cell differentiation involved in embryonic placenta development	IEA Inferred from Electronic Annotation more info
involved_in epithelial cell differentiation	IBA Inferred from Biological aspect of Ancestor more info
involved_in intermediate filament organization	IBA Inferred from Biological aspect of Ancestor more info
involved_in response to estrogen	IEP Inferred from Expression Pattern more info	PubMed
involved_in sarcomere organization	IDA Inferred from Direct Assay more info	PubMed

Component	Evidence Code	Pubs
located_in Z disc	IEA Inferred from Electronic Annotation more info
located_in apicolateral plasma membrane	IEA Inferred from Electronic Annotation more info
located_in cell periphery	IDA Inferred from Direct Assay more info	PubMed
located_in costamere	IDA Inferred from Direct Assay more info	PubMed
is_active_in cytoskeleton	IBA Inferred from Biological aspect of Ancestor more info
located_in cytosol	TAS Traceable Author Statement more info
located_in extracellular exosome	HDA more info	PubMed
located_in intermediate filament	IEA Inferred from Electronic Annotation more info
located_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in sarcolemma	IEA Inferred from Electronic Annotation more info
located_in terminal web	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: keratin, type I cytoskeletal 19

Names: 40-kDa keratin intermediate filament; CK-19; cytokeratin 19; keratin 19, type I; keratin, type I, 40-kd

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.