ACTB p.Pro109=
c.327C>T · rs781554752 · VCV1966528
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00801%, afr)
Conditions
1
Baraitser-Winter syndrome 1
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 -0.044 | GERP 1.1, phastCons 0.2 |
| Overall | ||
| CADD | 10.65 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00801%
African / African-American · 6/74,928 alleles
Filtering AF
0.00347%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00228%
Overall
0.00198%
32/1,613,932 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.00801% | 12,488 |
| European (non-Finnish) | 0.00212% | 47,201 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,480 |
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
- ACTB
- Protein
- p.Pro109=
- Coding
- c.327C>T
- MANE Select
- NM_001101
- dbSNP
- rs781554752
- Type
- single nucleotide variant
- Location
- chr7:5529197 (GRCh38)
- Gene constraint
- LOEUF 0.193 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 95.31 · 93 PDB
Similar variants
- ACTB p.Pro109Ser Likely pathogenic ★★ same residue
- ACTB p.Ala22Thr Likely pathogenic ★★ same condition
- ACTB p.Ala7Thr Likely pathogenic ★★ same condition
- ACTB p.Arg147Cys Pathogenic ★★ same condition
- ACTB p.Arg183Trp Pathogenic ★★ same condition
- ACTB p.Arg196Cys Pathogenic ★★ same condition
- ACTB p.Arg196His Pathogenic ★★ same condition
- ACTB p.Arg196Leu Likely pathogenic ★★ same condition
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/actb-p-pro109 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown