Is BRIP1 p.Arg403Gly (c.1207C>G) pathogenic?

BRIP1 p.Arg403Gly (c.1207C>G) is classified Uncertain significance in BRIP1 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-03-04). AlphaMissense: likely pathogenic (0.9038); Very rare (popmax 8.48e-05%, nfe); Associated with hereditary breast carcinoma.

What condition is associated with BRIP1 p.Arg403Gly (c.1207C>G)?

BRIP1 p.Arg403Gly (c.1207C>G) is associated with hereditary breast carcinoma, Fanconi anemia complementation group J, hereditary neoplastic syndrome (ClinVar).

How common is BRIP1 p.Arg403Gly (c.1207C>G) in the general population?

BRIP1 p.Arg403Gly (c.1207C>G) is very rare (popmax 8.48e-05%, nfe) (gnomAD).

How is Hereditary breast cancer inherited?

Typically Autosomal dominant, Multigenic/multifactorial (Orphanet). A genetic counselor can assess individual risk for a family.

What do computational predictors say about BRIP1 p.Arg403Gly (c.1207C>G)?

AlphaMissense predicts likely pathogenic (score 0.9038) — an in-silico prediction, not a clinical call.

BRIP1 p.Arg403Gly

c.1207C>G · rs369631413 · VCV1394944

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely pathogenic

0.9038 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.48e-05%, nfe)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

hereditary breast carcinoma

Computational evidence

Protein change
AlphaMissense	0.9038	likely pathogenic
REVEL	0.558	indeterminate
SaProt	LLR -15.24	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.6	GERP 0.51, phastCons 1
Regional constraint	o/e 0.92	unconstrained · MANE · 68 kb · p 0.065 · regional, not allelic
Overall
CADD	27.0	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

Grpmax group 8.48e-05% European (non-Finnish) · 1/1,179,626 alleles

Overall 6.84e-05% 1/1,461,374 alleles · very rare

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: BRIP1
Protein: p.Arg403Gly
Coding: c.1207C>G
MANE Select: NM_032043
dbSNP: rs369631413
Type: single nucleotide variant
Location: chr17:61799233 (GRCh38)
Gene constraint: LOEUF 0.848 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 64.19 · 6 PDB
Residue 403: the helicase atp-binding domain

Full BRIP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hereditary breast carcinoma — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Fanconi anemia complementation group J hereditary neoplastic syndrome

For Hereditary breast cancer (Orphanet):

Inheritance: Autosomal dominant, Multigenic/multifactorial
Onset: Adult, Elderly

Similar variants

BRIP1 p.Arg403Gln Uncertain significance ★★ ⚠ same residue
BRIP1 p.Arg403Trp Uncertain significance ★★ ⚠ same residue
BRIP1 p.Arg403= Benign/Likely benign ★★ same residue
BRIP1 p.Arg403Pro Uncertain significance ★ ⚠ same residue
BRIP1 c.1140+1G>A Likely pathogenic ★★ same condition
BRIP1 c.1141-2A>C Likely pathogenic ★★ same condition
BRIP1 c.1141-2A>G Likely pathogenic ★★ same condition
BRIP1 c.1141-2A>T Likely pathogenic ★★ 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/brip1-p-arg403gly (accessed [today's date]).

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