KRT35
Chr 17keratin 35
Also known as: HA5, Ha-5, K35, KRTHA5, hHa5
This type I hair keratin heterodimerizes with type II keratins to form the structural framework of hair and nails. Mutations cause autosomal dominant hair disorders through a dominant-negative mechanism, where mutant keratin proteins disrupt normal keratin filament assembly. The gene shows extreme intolerance to loss-of-function mutations based on population genetics data.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Typical tolerance to LoF variation
Tolerant to missense variation
This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
95 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 6 | 0 | 6 |
Likely Pathogenic | 0 | 0 | 0 | 0 | 0 |
VUS | 0 | 81 | 0 | 0 | 81 |
Likely Benign | 0 | 5 | 0 | 3 | 8 |
Benign | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 86 | 6 | 3 | 95 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
KRT35 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools