SRCAP p.Ser21=
c.63G>A · rs755700498 · VCV2086282
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0284%, amr)
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 8.4 | GERP 2.3, phastCons 1 |
| Overall | ||
| CADD | 15.59 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0284%
Admixed American · 17/59,840 alleles
Filtering AF
0.018%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0148%
Overall
0.00267%
43/1,612,810 alleles · ultra-rare
exomes 39/1,460,686 · genomes 4/152,124 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.0284% | 3,520 |
| Remaining individualsnot grpmax-eligible | 0.00481% | 20,809 |
| East Asian | 0.00446% | 22,441 |
| European (non-Finnish) | 0.00161% | 62,069 |
| African / African-American | 0.00134% | 74,870 |
| South Asian | 0.0011% | 90,938 |
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
- SRCAP
- Protein
- p.Ser21=
- Coding
- c.63G>A
- MANE Select
- NM_006662
- dbSNP
- rs755700498
- Type
- single nucleotide variant
- Location
- chr16:30704072 (GRCh38)
- Gene constraint
- LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Residue 21
- the 'disordered' region
Similar variants
- SRCAP p.Ser21Leu Conflicting classifications of pathogenicity ★ same residue
- SRCAP p.Arg2329Ter Pathogenic/Likely pathogenic ★★ same type
- SRCAP p.Arg2435Ter Pathogenic/Likely pathogenic ★★ same type
- SRCAP p.Arg2444Ter Pathogenic ★★ same type
- SRCAP p.Arg2718Ter Pathogenic/Likely pathogenic ★★ same type
- SRCAP p.Arg2748Ter Pathogenic ★★ same type
- SRCAP p.Gln2407Ter Pathogenic ★★ same type
- SRCAP p.Gln2419Ter 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/srcap-p-ser21 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown