ACTB p.Ser33=
c.99C>T · rs749919451 · VCV516208
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00892%, eas)
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 8.3 | GERP 1, phastCons 1 |
| Overall | ||
| CADD | 15.33 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00892%
East Asian · 4/44,864 alleles
Filtering AF
0.00298%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0018%
Overall
0.000343%
5/1,459,240 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00892% | 11,216 |
| Admixed American | 0.00167% | 59,964 |
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.Ser33=
- Coding
- c.99C>T
- MANE Select
- NM_001101
- dbSNP
- rs749919451
- Type
- single nucleotide variant
- Location
- chr7:5529559 (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.Ala22Thr Likely pathogenic ★★ same type
- ACTB p.Ala7Thr Likely pathogenic ★★ same type
- ACTB p.Arg147Cys Pathogenic ★★ same type
- ACTB p.Arg183Trp Pathogenic ★★ same type
- ACTB p.Arg196Cys Pathogenic ★★ same type
- ACTB p.Arg196His Pathogenic ★★ same type
- ACTB p.Arg196Leu Likely pathogenic ★★ same type
- ACTB p.Arg206Gln Pathogenic/Likely pathogenic ★★ 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/actb-p-ser33 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown