Is SRCAP p.Thr603Met (c.1808C>T) pathogenic?

SRCAP p.Thr603Met (c.1808C>T) is classified Uncertain significance in SRCAP (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-17). AlphaMissense: likely pathogenic (0.9552); Very rare (popmax 0.000339%, nfe); Associated with Inborn genetic diseases.

What condition is associated with SRCAP p.Thr603Met (c.1808C>T)?

SRCAP p.Thr603Met (c.1808C>T) is associated with Inborn genetic diseases (ClinVar).

How common is SRCAP p.Thr603Met (c.1808C>T) in the general population?

SRCAP p.Thr603Met (c.1808C>T) is very rare (popmax 0.000339%, nfe) (gnomAD).

What do computational predictors say about SRCAP p.Thr603Met (c.1808C>T)?

AlphaMissense predicts likely pathogenic (score 0.9552) — an in-silico prediction, not a clinical call.

SRCAP p.Thr603Met

c.1808C>T · VCV4174655

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9552 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000339%, nfe)

Missense predictors

2/2 damaging

AlphaMissense, REVEL · SaProt no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.9552	likely pathogenic
REVEL	0.775	moderately pathogenic-leaning
SaProt	—	not scored · why
⇒ AlphaMissense and REVEL both call this damaging; SaProt makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2.7, phastCons 1
Regional constraint	o/e 0.37	unconstrained · MANE · 4,014 bp · p 9.1e-31 · regional, not allelic
Overall
CADD	25.3	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000339% European (non-Finnish) · 4/1,178,810 alleles

Filtering AF 7.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.00031% 5/1,612,672 alleles · very rare exomes 5/1,460,356 · genomes 0/152,316 · joint denominator

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.0016%	62,468
European (non-Finnish)grpmax	0.000339%	294,703

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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.Thr603Met
Coding: c.1808C>T
MANE Select: NM_006662
Type: single nucleotide variant
Location: chr16:30712150 (GRCh38)
Gene constraint: LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 603: 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-thr603met (accessed [today's date]).

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