Is BRIP1 p.Arg579Cys (c.1735C>T) pathogenic?

BRIP1 p.Arg579Cys (c.1735C>T) is classified Conflicting classifications of pathogenicity in BRIP1 (ClinVar, Conflicting submitters, 16 submitters; last evaluated 2026-01-26). AlphaMissense: likely benign (0.0991); Ultra-rare (popmax 0.0893%, afr); Associated with hereditary breast carcinoma.

What condition is associated with BRIP1 p.Arg579Cys (c.1735C>T)?

BRIP1 p.Arg579Cys (c.1735C>T) is associated with hereditary breast carcinoma, ovarian cancer, Fanconi anemia complementation group J (ClinVar).

How common is BRIP1 p.Arg579Cys (c.1735C>T) in the general population?

BRIP1 p.Arg579Cys (c.1735C>T) is ultra-rare (popmax 0.0893%, afr) (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.Arg579Cys (c.1735C>T)?

AlphaMissense predicts likely benign (score 0.0991) — an in-silico prediction, not a clinical call.

BRIP1 p.Arg579Cys

c.1735C>T · rs28997571 · VCV128162

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 16 submitters

AlphaMissense

likely benign

0.0991 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0893%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

hereditary breast carcinoma

Computational evidence

Protein change
AlphaMissense	0.0991	likely benign
REVEL	0.135	moderately benign-leaning
SaProt	LLR -7.89	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 3.9	GERP 1.5, phastCons 1
Regional constraint	o/e 0.84	unconstrained · MANE · 110 kb · p 3.3e-06 · regional, not allelic
Overall
CADD	25.7	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0893% African / African-American · 67/75,038 alleles

Filtering AF 0.0721% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0659%

Overall 0.0108% 175/1,614,102 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0893%	1,120
Ashkenazi Jewishnot grpmax-eligible	0.0574%	1,741
European (non-Finnish)	0.0072%	13,882
Remaining individualsnot grpmax-eligible	0.0064%	15,626
Admixed American	0.00333%	30,009

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.Arg579Cys
Coding: c.1735C>T
MANE Select: NM_032043
dbSNP: rs28997571
Type: single nucleotide variant
Location: chr17:61780899 (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: ovarian cancer 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.Arg579Ser Uncertain significance ★★ ⚠ same residue
BRIP1 p.Arg579His Conflicting classifications of pathogenicity ★ ⚠ same residue
BRIP1 p.Arg579Leu Uncertain significance ★ ⚠ same residue
BRIP1 p.Arg579= Likely benign ★ same residue
BRIP1 p.Arg579fs Pathogenic ★★ 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

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-arg579cys (accessed [today's date]).

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