Is SRC p.Gly291Cys (c.871G>T) pathogenic?

SRC p.Gly291Cys (c.871G>T) is classified Uncertain significance in SRC (ClinVar, Single submitter, 1 submitter; last evaluated 2024-02-06). AlphaMissense: likely pathogenic (0.7066); Absent from gnomAD v4.1.

How common is SRC p.Gly291Cys (c.871G>T) in the general population?

SRC p.Gly291Cys (c.871G>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about SRC p.Gly291Cys (c.871G>T)?

AlphaMissense predicts likely pathogenic (score 0.7066) — an in-silico prediction, not a clinical call.

SRC p.Gly291Cys

c.871G>T · rs1340705473 · VCV3169833

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.7066 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Computational evidence

Protein change
AlphaMissense	0.7066	likely pathogenic
REVEL	0.414	indeterminate
SaProt	LLR -10.36	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL is indeterminate.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 9.9	GERP 2.1, phastCons 1
Regional constraint	o/e 0.47	unconstrained · MANE · 5,565 bp · p 1.1e-23 · regional, not allelic
Overall
CADD	31.0	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 and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: SRC
Protein: p.Gly291Cys
Coding: c.871G>T
MANE Select: NM_198291
dbSNP: rs1340705473
Type: single nucleotide variant
Location: chr20:37400126 (GRCh38)
Gene constraint: LOEUF 0.383 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 84.59 · 79 PDB
Residue 291: the protein kinase domain; a turn

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

Similar variants

SRC p.Gly291Ser Uncertain significance ★ ⚠ same residue
SRC p.Glu527Lys Pathogenic/Likely pathogenic ★★ same type
SRC p.Glu492Lys Uncertain significance ★★ ⚠ same type
SRC c.1117-180C>T Benign ★★ same type
SRC c.1117-9C>T Likely benign ★★ same type
SRC c.1271-55= Benign ★★ same type
SRC c.449+9C>T Benign/Likely benign ★★ same type
SRC c.553+8C>T Benign/Likely benign ★★ 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/src-p-gly291cys (accessed [today's date]).

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