Is BUB3 p.Ser34Cys (c.101C>G) pathogenic?

BUB3 p.Ser34Cys (c.101C>G) is classified Uncertain significance in BUB3 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-09-28). AlphaMissense: likely pathogenic (0.571); Absent from gnomAD v4.1.

How common is BUB3 p.Ser34Cys (c.101C>G) in the general population?

BUB3 p.Ser34Cys (c.101C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about BUB3 p.Ser34Cys (c.101C>G)?

AlphaMissense predicts likely pathogenic (score 0.571) — an in-silico prediction, not a clinical call.

BUB3 p.Ser34Cys

c.101C>G · rs768452215 · VCV1754667

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.571 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.571	likely pathogenic
REVEL	0.866	moderately pathogenic-leaning
SaProt	LLR -14.05	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2.5, phastCons 1
Regional constraint	o/e 0.99	unconstrained · MANE · 2,834 bp · p 0.91 · regional, not allelic
Overall
CADD	32.0	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

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: BUB3
Protein: p.Ser34Cys
Coding: c.101C>G
MANE Select: NM_004725
dbSNP: rs768452215
Type: single nucleotide variant
Location: chr10:123155018 (GRCh38)
Gene constraint: LOEUF 0.77 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 96.10

Full BUB3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

BUB3 p.Ser34Phe Uncertain significance ★ ⚠ same residue
BUB3 p.Ser34Tyr Uncertain significance ★ ⚠ same residue
BUB3 p.Ser34= Likely benign ★ same residue
BUB3 p.Arg314= Likely benign ★★ same type
BUB3 p.Ser197= Likely benign ★★ same type
BUB3 p.Ser198= Likely benign ★★ same type
BUB3 p.Ala131Val Uncertain significance ★ ⚠ same type
BUB3 p.Ala155Val Uncertain significance ★ ⚠ same type

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/bub3-p-ser34cys (accessed [today's date]).

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