KRT6B p.Val337=
c.1011C>G · VCV4798823
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0517%, amr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · G>T here scores Δ0.93 · evaluated, not missing |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -0.32 | GERP 0.88 |
| Overall | ||
| CADD | 12.39 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0517%
Admixed American · 31/60,014 alleles
Filtering AF
0.0374%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0325%
Overall
0.00217%
35/1,614,070 alleles · ultra-rare
exomes 32/1,461,894 · genomes 3/152,176 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.0517% | 1,936 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,244 |
| South Asian | 0.0022% | 45,540 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- KRT6B
- Protein
- p.Val337=
- Coding
- c.1011C>G
- MANE Select
- NM_005555
- Type
- single nucleotide variant
- Location
- chr12:52449535 (GRCh38)
- Gene constraint
- LOEUF 0.909 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 69.76
- Residue 337
- the if rod domain; the 'coil 2' region
Similar variants
- KRT6B p.Glu461Lys Pathogenic/Likely pathogenic ★★ same type
- KRT6B p.Glu472Lys Pathogenic ★★ same type
- KRT6B p.Ala403Val Uncertain significance ★★ ⚠ same type
- KRT6B p.Arg260His Uncertain significance ★★ same type
- KRT6B p.Arg375His Uncertain significance ★★ ⚠ same type
- KRT6B p.Arg386His Uncertain significance ★★ same type
- KRT6B p.Gln208His Uncertain significance ★★ ⚠ same type
- KRT6B p.Gln379Arg Uncertain significance ★★ ⚠ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/krt6b-p-val337 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown