Is BAP1 p.Trp52Arg (c.154T>A) pathogenic?

BAP1 p.Trp52Arg (c.154T>A) is classified Uncertain significance in BAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2020-09-22). AlphaMissense: likely pathogenic (1); Very rare (popmax 8.49e-05%, nfe); Associated with hereditary neoplastic syndrome.

What condition is associated with BAP1 p.Trp52Arg (c.154T>A)?

BAP1 p.Trp52Arg (c.154T>A) is associated with hereditary neoplastic syndrome (ClinVar).

How common is BAP1 p.Trp52Arg (c.154T>A) in the general population?

BAP1 p.Trp52Arg (c.154T>A) is very rare (popmax 8.49e-05%, nfe) (gnomAD).

What do computational predictors say about BAP1 p.Trp52Arg (c.154T>A)?

AlphaMissense predicts likely pathogenic (score 1) — an in-silico prediction, not a clinical call.

BAP1 p.Trp52Arg

c.154T>A · rs2471358486 · VCV1775031

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

1 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.49e-05%, nfe)

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
AlphaMissense	1	likely pathogenic · top 5% in BAP1
REVEL	0.774	moderately pathogenic-leaning
SaProt	LLR -12.52	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Pangolin	Δ0.31	gain · loss 0.04 · not in the SpliceAI release · independent
Constraint at this position
Conservation	phyloP 11	GERP 1.8, phastCons 1
Overall
CADD	34.0	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 8.49e-05% European (non-Finnish) · 1/1,178,542 alleles

Overall 6.86e-05% 1/1,458,236 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: BAP1
Protein: p.Trp52Arg
Coding: c.154T>A
MANE Select: NM_004656
dbSNP: rs2471358486
Type: single nucleotide variant
Location: chr3:52408575 (GRCh38)
Gene constraint: LOEUF 0.324 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 63.87 · 4 PDB
Residue 52: the uch catalytic domain; a β-strand

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

Similar variants

BAP1 p.Trp52Ter Pathogenic ★ 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.1251-1G>A Likely pathogenic ★★ same condition
BAP1 c.1251-2A>G Likely pathogenic ★★ same condition
BAP1 c.1729+1G>A Pathogenic ★★ same condition
BAP1 c.1730-2A>G 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/bap1-p-trp52arg (accessed [today's date]).

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