Is BAP1 p.Ala433= (c.1299T>C) pathogenic?

BAP1 p.Ala433= (c.1299T>C) is classified Benign/Likely benign in BAP1 (ClinVar, Multiple submitters, 5 submitters; last evaluated 2024-10-09). Absent from gnomAD v4.1; Associated with hereditary neoplastic syndrome.

What condition is associated with BAP1 p.Ala433= (c.1299T>C)?

BAP1 p.Ala433= (c.1299T>C) is associated with hereditary neoplastic syndrome, BAP1-related tumor predisposition syndrome (ClinVar).

How common is BAP1 p.Ala433= (c.1299T>C) in the general population?

BAP1 p.Ala433= (c.1299T>C) is absent from gnomAD v4.1 (gnomAD).

BAP1 p.Ala433=

c.1299T>C · rs1553644986 · VCV509824

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 5 submitters

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL	0.187	benign-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -3.2	GERP -4.2
Overall
CADD	1.865	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: BAP1
Protein: p.Ala433=
Coding: c.1299T>C
MANE Select: NM_007212 · reported on NM_004656
dbSNP: rs1553644986
Type: single nucleotide variant
Location: chr3:52403846 (GRCh38)
Structure: AlphaFold pLDDT 78.27 · 28 PDB

Full BAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

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

Also linked: BAP1-related tumor predisposition syndrome

Similar variants

BAP1 p.Ala433Pro Uncertain significance ★★ ⚠ same residue
BAP1 p.Ala433Thr Uncertain significance ★★ ⚠ same residue
BAP1 c.1117-1G>A Likely pathogenic ★★ same condition
BAP1 c.122+1G>A Pathogenic ★★ same condition
BAP1 c.122+1G>T Pathogenic/Likely pathogenic ★★ same condition
BAP1 c.122+5G>A Pathogenic/Likely pathogenic ★★ same condition
BAP1 c.122+5G>C Likely pathogenic ★★ same condition
BAP1 c.1251-1G>A 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/bap1-p-ala433 (accessed [today's date]).

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