KRT1

Chr 12

keratin 1

Also known as: AEI2, CK1, EHK, EHK1, EPPK, K1, KRT1A, NEPPK

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 specifically expressed in the spinous and granular layers of the epidermis with family member KRT10 and mutations in these genes 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]

ResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtEpidermolytic hyperkeratosis 1
UniProtIchthyosis hystrix, Curth-Macklin type
UniProtKeratoderma, palmoplantar, non-epidermolytic
UniProtIchthyosis, annular epidermolytic, 2

Clinical highlights

Interpreting a novel variant
A dominant-negative effect is the curated mechanism (Gene2Phenotype), so a variant that simply removes the protein may not be the pathogenic class here — missense variants in functional domains often carry more weight.Curated gene-level mechanism — a prior for triage, not a per-variant call.
0
Active trials
57
Pubs (1 yr)
P/LP submissions
P/LP missense
0.40
LOEUF
DN*
Mechanism· G2P
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?
0.40LOEUF
pLI 0.736
Z-score 3.85
OE 0.19 (0.100.40)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?
0.25Z-score
OE missense 0.96 (0.881.05)
349 obs / 362.5 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.19 (0.100.40)
00.351.4
Missense OE?0.96 (0.881.05)
00.61.4
Synonymous OE?0.99
01.21.6
LoF obs/exp: 5 / 26.3Missense obs/exp: 349 / 362.5Syn Z: 0.05

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

KRT1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →