Is BIRC2 p.Arg462Trp (c.1384C>T) pathogenic?

BIRC2 p.Arg462Trp (c.1384C>T) is classified Uncertain significance in BIRC2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-07-10). AlphaMissense: likely benign (0.1687); Ultra-rare (popmax 0.05%, mid).

How common is BIRC2 p.Arg462Trp (c.1384C>T) in the general population?

BIRC2 p.Arg462Trp (c.1384C>T) is ultra-rare (popmax 0.05%, mid) (gnomAD).

What do computational predictors say about BIRC2 p.Arg462Trp (c.1384C>T)?

AlphaMissense predicts likely benign (score 0.1687) — an in-silico prediction, not a clinical call.

BIRC2 p.Arg462Trp

c.1384C>T · rs779124253 · VCV2593459

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1687 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.05%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1687	likely benign
REVEL	0.236	benign-leaning
SaProt	LLR -7.31	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · C>A here scores Δ0.46 · evaluated, not missing
Constraint at this position
Conservation	phyloP 2.8	GERP 1.9, phastCons 1
Regional constraint	o/e 1.12	unconstrained · MANE · 14 kb · p 0.071 · regional, not allelic
Overall
CADD	27.4	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — 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 0.05% Middle Eastern · 3/6,002 alleles

Filtering AF 0.0135% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00725%

Overall 0.00132% 21/1,586,922 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.05%	2,001
African / African-American	0.00685%	14,604
South Asian	0.00235%	42,609
Admixed American	0.00195%	51,340
European (non-Finnish)	0.000852%	117,366

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: BIRC2
Protein: p.Arg462Trp
Coding: c.1384C>T
MANE Select: NM_001166
dbSNP: rs779124253
Type: single nucleotide variant
Location: chr11:102377513 (GRCh38)
Gene constraint: LOEUF 0.381 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 77.08 · 29 PDB
Residue 462: the card domain; an α-helix

Full BIRC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

BIRC2 p.Arg462Gln Uncertain significance ★ ⚠ same residue
BIRC2 p.Ala506Val Benign ★★ same type
BIRC2 p.Ala186Thr Uncertain significance ★ ⚠ same type
BIRC2 p.Ala388Thr Uncertain significance ★ ⚠ same type
BIRC2 p.Ala58Ser Uncertain significance ★ ⚠ same type
BIRC2 p.Arg164Lys Uncertain significance ★ ⚠ same type
BIRC2 p.Arg241Gln Uncertain significance ★ ⚠ same type
BIRC2 p.Arg300Cys 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/birc2-p-arg462trp (accessed [today's date]).

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