Is SRCAP p.Gln1225His (c.3675G>C) pathogenic?

SRCAP p.Gln1225His (c.3675G>C) is classified Uncertain significance in SRCAP (ClinVar, Single submitter, 1 submitter; last evaluated 2024-12-25). AlphaMissense: ambiguous (0.3879); Very rare (popmax 0.0022%, sas); Associated with Inborn genetic diseases.

What condition is associated with SRCAP p.Gln1225His (c.3675G>C)?

SRCAP p.Gln1225His (c.3675G>C) is associated with Inborn genetic diseases (ClinVar).

How common is SRCAP p.Gln1225His (c.3675G>C) in the general population?

SRCAP p.Gln1225His (c.3675G>C) is very rare (popmax 0.0022%, sas) (gnomAD).

What do computational predictors say about SRCAP p.Gln1225His (c.3675G>C)?

AlphaMissense predicts ambiguous (score 0.3879) — an in-silico prediction, not a clinical call.

SRCAP p.Gln1225His

c.3675G>C · VCV3801255

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3879 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.0022%, sas)

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.3879	ambiguous
REVEL	0.447	indeterminate
SaProt	—	not scored · why
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.1	GERP -0.84, phastCons 1
Regional constraint	o/e 1.03	unconstrained · MANE · 8,776 bp · p 0.24 · regional, not allelic
Overall
CADD	23.1	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 0.0022% South Asian · 2/91,084 alleles

Filtering AF 0.000365% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000137%

Overall 0.000124% 2/1,614,154 alleles · very rare exomes 2/1,461,826 · genomes 0/152,328 · joint denominator

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.Gln1225His
Coding: c.3675G>C
MANE Select: NM_006662
Type: single nucleotide variant
Location: chr16:30722255 (GRCh38)
Gene constraint: LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 1225: a UniProt-annotated variant site (in dehmba)

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

SRCAP p.Gln2407Ter Pathogenic ★★ same condition
SRCAP p.Ala1152Val Uncertain significance ★★ ⚠ same condition
SRCAP p.Ala1161Thr Uncertain significance ★★ ⚠ same condition
SRCAP p.Ala1570Thr Uncertain significance ★★ ⚠ same condition
SRCAP p.Ala1584Gly Uncertain significance ★★ same condition
SRCAP p.Ala1985Thr Uncertain significance ★★ same condition
SRCAP p.Ala2699Val Uncertain significance ★★ ⚠ same condition
SRCAP p.Ala2945Val Uncertain significance ★★ 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-gln1225his (accessed [today's date]).

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