Is SRCAP p.Glu3166Val (c.9497A>T) pathogenic?

SRCAP p.Glu3166Val (c.9497A>T) is classified Conflicting classifications of pathogenicity in SRCAP (ClinVar, Conflicting submitters, 3 submitters; last evaluated 2024-06-19). AlphaMissense: ambiguous (0.4943); Very rare (popmax 0.00504%, amr); Associated with developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities.

How common is SRCAP p.Glu3166Val (c.9497A>T) in the general population?

SRCAP p.Glu3166Val (c.9497A>T) is very rare (popmax 0.00504%, amr) (gnomAD).

What do computational predictors say about SRCAP p.Glu3166Val (c.9497A>T)?

AlphaMissense predicts ambiguous (score 0.4943) — an in-silico prediction, not a clinical call.

SRCAP p.Glu3166Val

Q: What condition is associated with SRCAP p.Glu3166Val (c.9497A>T)?

SRCAP p.Glu3166Val (c.9497A>T) is associated with developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities, Floating-Harbor syndrome (ClinVar).

c.9497A>T · rs530672259 · VCV1394923

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 3 submitters

AlphaMissense

ambiguous

0.4943 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00504%, amr)

Conditions

developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities

Computational evidence

Protein change
AlphaMissense	0.4943	ambiguous
REVEL	0.544	indeterminate
SaProt	—	not scored · why
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2.5, phastCons 1
Regional constraint	o/e 1.06	unconstrained · MANE · 2,598 bp · p 0.058 · regional, not allelic
Overall
CADD	23.8	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00504% Admixed American · 3/59,552 alleles

Filtering AF 0.00291% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0026%

Overall 0.00317% 51/1,610,852 alleles · very rare exomes 45/1,458,526 · genomes 6/152,326 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00504%	19,851
Remaining individualsnot grpmax-eligible	0.00482%	20,757
European (non-Finnish)	0.00382%	26,192

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.Glu3166Val
Coding: c.9497A>T
MANE Select: NM_006662
dbSNP: rs530672259
Type: single nucleotide variant
Location: chr16:30739537 (GRCh38)
Gene constraint: LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 3166: the 'disordered' region; a UniProt-annotated variant site (in dehmba); a UniProt-annotated variant site (in flhs)

Full SRCAP gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Floating-Harbor syndrome

Similar variants

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
SRCAP p.Gln2665Ter Pathogenic/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/srcap-p-glu3166val (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown