ARPC1B p.His136=
c.408C>T · rs772559080 · VCV1636252
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.024%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 1.8 | GERP 0.86, phastCons 1 |
| Overall | ||
| CADD | 12.5 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.024%
African / African-American · 18/74,938 alleles
Filtering AF
0.0155%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0128%
Overall
0.00124%
20/1,614,046 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.024% | 4,163 |
| Admixed American | 0.00333% | 30,001 |
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
- ARPC1B
- Protein
- p.His136=
- Coding
- c.408C>T
- MANE Select
- NM_005720
- dbSNP
- rs772559080
- Type
- single nucleotide variant
- Location
- chr7:99389920 (GRCh38)
- Gene constraint
- LOEUF 0.876 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 92.81 · 4 PDB
- Residue 136
- a β-strand
Similar variants
- ARPC1B c.392+2T>C Pathogenic ★★ same type
- ARPC1B c.64+2T>A Pathogenic ★★ same type
- ARPC1B p.Ala261= Pathogenic ★★ same type
- ARPC1B c.1080+4A>C Uncertain significance ★★ same type
- ARPC1B c.170-3C>T Uncertain significance ★★ same type
- ARPC1B c.501-5G>A Uncertain significance ★★ same type
- ARPC1B p.Ala238Val Uncertain significance ★★ ⚠ same type
- ARPC1B p.Ala249Val 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/arpc1b-p-his136 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown