SRCAP p.Pro1233=
c.3699G>A · rs34734612 · VCV318877
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 5 submitters
gnomAD v4.1
Rare
low-frequency (popmax 2.73%, afr)
Conditions
2
developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities
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 10 | GERP 2.5, phastCons 1 |
| Overall | ||
| CADD | 14.83 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
2.73%
African / African-American · 2,047/74,968 alleles
Filtering AF
2.63%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 2.59%
Overall
0.149%
2,403/1,613,084 alleles · low-frequency
exomes 1,188/1,460,882 · genomes 1,215/152,202 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 2.73% | 37 |
| Remaining individualsnot grpmax-eligible | 0.181% | 553 |
| Admixed American | 0.137% | 730 |
| South Asian | 0.0198% | 5,056 |
| Middle Eastern | 0.017% | 5,870 |
| European (non-Finnish) | 0.012% | 8,307 |
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.Pro1233=
- Coding
- c.3699G>A
- MANE Select
- NM_006662
- dbSNP
- rs34734612
- Type
- single nucleotide variant
- Location
- chr16:30722279 (GRCh38)
- Gene constraint
- LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Residue 1233
- a UniProt-annotated variant site (in dehmba)
Similar variants
- SRCAP p.Pro1233Leu Uncertain significance ★★ same residue
- SRCAP p.Arg2329Ter Pathogenic/Likely pathogenic ★★ same condition
- SRCAP p.Arg2435Ter Pathogenic/Likely pathogenic ★★ same condition
- SRCAP p.Arg2444Ter Pathogenic ★★ same condition
- SRCAP p.Arg2718Ter Pathogenic/Likely pathogenic ★★ same condition
- SRCAP p.Arg2748Ter Pathogenic ★★ same condition
- SRCAP p.Gln2407Ter Pathogenic ★★ same condition
- SRCAP p.Gln2419Ter 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/srcap-p-pro1233 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown