Is SRCAP p.Pro1083Arg (c.3248C>G) pathogenic?

SRCAP p.Pro1083Arg (c.3248C>G) is classified Uncertain significance in SRCAP (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-06-04). AlphaMissense: likely benign (0.24); Very rare (popmax 0.00171%, amr).

How common is SRCAP p.Pro1083Arg (c.3248C>G) in the general population?

SRCAP p.Pro1083Arg (c.3248C>G) is very rare (popmax 0.00171%, amr) (gnomAD).

What do computational predictors say about SRCAP p.Pro1083Arg (c.3248C>G)?

AlphaMissense predicts likely benign (score 0.24) — an in-silico prediction, not a clinical call.

SRCAP p.Pro1083Arg

c.3248C>G · rs1288652197 · VCV928647

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.24 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00171%, amr)

Missense predictors

0/2 damaging

AlphaMissense, REVEL · SaProt no call

Computational evidence

Protein change
AlphaMissense	0.24	likely benign
REVEL	0.274	benign-leaning
SaProt	—	not scored · why
⇒ AlphaMissense and REVEL both call this tolerated; 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 1.03	unconstrained · MANE · 8,776 bp · p 0.24 · regional, not allelic
Overall
CADD	22.3	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — 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 0.00171% Admixed American · 1/58,352 alleles

Overall 6.25e-05% 1/1,600,522 alleles · very rare exomes 1/1,448,192 · genomes 0/152,330 · 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.Pro1083Arg
Coding: c.3248C>G
MANE Select: NM_006662
dbSNP: rs1288652197
Type: single nucleotide variant
Location: chr16:30720973 (GRCh38)
Gene constraint: LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 1083: the 'disordered' region; a UniProt-annotated variant site (in dehmba)

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

Similar variants

SRCAP p.Pro1083= Likely benign ★★ same residue
SRCAP p.Pro1083Ser Likely benign ★ 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

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-pro1083arg (accessed [today's date]).

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