Is SRCAP p.Lys1376Arg (c.4127A>G) pathogenic?

SRCAP p.Lys1376Arg (c.4127A>G) is classified Uncertain significance in SRCAP (ClinVar, Single submitter, 1 submitter; last evaluated 2025-04-10). AlphaMissense: likely benign (0.098); Very rare (popmax 0.00167%, amr); Associated with Inborn genetic diseases.

What condition is associated with SRCAP p.Lys1376Arg (c.4127A>G)?

SRCAP p.Lys1376Arg (c.4127A>G) is associated with Inborn genetic diseases (ClinVar).

How common is SRCAP p.Lys1376Arg (c.4127A>G) in the general population?

SRCAP p.Lys1376Arg (c.4127A>G) is very rare (popmax 0.00167%, amr) (gnomAD).

What do computational predictors say about SRCAP p.Lys1376Arg (c.4127A>G)?

AlphaMissense predicts likely benign (score 0.098) — an in-silico prediction, not a clinical call.

SRCAP p.Lys1376Arg

c.4127A>G · VCV3961847

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.098 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00167%, amr)

Missense predictors

0/2 damaging

AlphaMissense, REVEL · SaProt no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.098	likely benign
REVEL	0.217	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
Pangolin	Δ0.24	loss · gain 0.05 · not in the SpliceAI release · independent
Constraint at this position
Conservation	phyloP 9.4	GERP 2.5, phastCons 1
Regional constraint	o/e 1.03	unconstrained · MANE · 8,776 bp · p 0.24 · regional, not allelic
Overall
CADD	21.9	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 0.00167% Admixed American · 1/59,956 alleles

Overall 6.2e-05% 1/1,613,472 alleles · very rare exomes 0/1,461,332 · genomes 1/152,140 · 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.Lys1376Arg
Coding: c.4127A>G
MANE Select: NM_006662
Type: single nucleotide variant
Location: chr16:30723197 (GRCh38)
Gene constraint: LOEUF 0.223 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 1376: 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-lys1376arg (accessed [today's date]).

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