Is BRIP1 p.Gln645= (c.1935G>A) pathogenic?

BRIP1 p.Gln645= (c.1935G>A) is classified Uncertain significance in BRIP1 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-05-08). Absent from gnomAD v4.1; Associated with hereditary breast carcinoma.

What condition is associated with BRIP1 p.Gln645= (c.1935G>A)?

BRIP1 p.Gln645= (c.1935G>A) is associated with hereditary breast carcinoma, Fanconi anemia complementation group J, hereditary neoplastic syndrome (ClinVar).

How common is BRIP1 p.Gln645= (c.1935G>A) in the general population?

BRIP1 p.Gln645= (c.1935G>A) is absent from gnomAD v4.1 (gnomAD).

How is Hereditary breast cancer inherited?

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

BRIP1 p.Gln645=

c.1935G>A · rs1254051324 · VCV820377

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

hereditary breast carcinoma

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Splicing
SpliceAI	Δ0.76	donor loss · deltas
Pangolin	Δ0.83	loss · gain 0.39 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 6	GERP 2.1, phastCons 1
Overall
CADD	25.5	PHRED · no single calibrated threshold — expert panels disagree

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: BRIP1
Protein: p.Gln645=
Coding: c.1935G>A
MANE Select: NM_032043
dbSNP: rs1254051324
Type: single nucleotide variant
Location: chr17:61780261 (GRCh38)
Gene constraint: LOEUF 0.848 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 64.19 · 6 PDB

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.Gln645Arg Uncertain significance ★★ ⚠ same residue
BRIP1 p.Gln645His Uncertain significance ★★ ⚠ same residue
BRIP1 p.Gln645Glu 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
BRIP1 c.1340+1G>A Pathogenic/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-gln645 (accessed [today's date]).

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