Is BAP1 p.Ser528Pro (c.1582T>C) pathogenic?

BAP1 p.Ser528Pro (c.1582T>C) is classified Uncertain significance in BAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-07-29). AlphaMissense: ambiguous (0.5503); Very rare (popmax 0.000254%, nfe); Associated with BAP1-related tumor predisposition syndrome.

What condition is associated with BAP1 p.Ser528Pro (c.1582T>C)?

BAP1 p.Ser528Pro (c.1582T>C) is associated with BAP1-related tumor predisposition syndrome (ClinVar).

How common is BAP1 p.Ser528Pro (c.1582T>C) in the general population?

BAP1 p.Ser528Pro (c.1582T>C) is very rare (popmax 0.000254%, nfe) (gnomAD).

How is BAP1-related tumor predisposition syndrome inherited?

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

What do computational predictors say about BAP1 p.Ser528Pro (c.1582T>C)?

AlphaMissense predicts ambiguous (score 0.5503) — an in-silico prediction, not a clinical call.

BAP1 p.Ser528Pro

c.1582T>C · rs201812308 · VCV961995

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.5503 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000254%, nfe)

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense no call

Conditions

BAP1-related tumor predisposition syndrome

Computational evidence

Protein change
AlphaMissense	0.5503	ambiguous
REVEL	0.215	benign-leaning
SaProt	LLR -6.81	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2, phastCons 1
Overall
CADD	28.6	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 0.000254% European (non-Finnish) · 3/1,179,974 alleles

Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%

Overall 0.000248% 4/1,614,030 alleles · very rare exomes 4/1,461,798 · genomes 0/152,232 · joint denominator

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.0016%	62,506
European (non-Finnish)grpmax	0.000254%	393,324

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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.Ser528Pro
Coding: c.1582T>C
MANE Select: NM_004656
dbSNP: rs201812308
Type: single nucleotide variant
Location: chr3:52403563 (GRCh38)
Gene constraint: LOEUF 0.324 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 63.87 · 4 PDB
Residue 528: a UniProt-annotated variant site (in tpds1)

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

Disease context

BAP1-related tumor predisposition syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For BAP1-related tumor predisposition syndrome (Orphanet):

Inheritance: Autosomal dominant
Onset: Adult

Similar variants

BAP1 p.Ser528Ala Uncertain significance ★★ ⚠ same residue
BAP1 p.Ser528Phe Conflicting classifications of pathogenicity ★ ⚠ 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-ser528pro (accessed [today's date]).

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