Is ASB2 p.Leu431Met (c.1291C>A) pathogenic?

ASB2 p.Leu431Met (c.1291C>A) is classified Uncertain significance in ASB2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-11-22). AlphaMissense: likely pathogenic (0.729); Very rare (popmax 0.005%, amr).

How common is ASB2 p.Leu431Met (c.1291C>A) in the general population?

ASB2 p.Leu431Met (c.1291C>A) is very rare (popmax 0.005%, amr) (gnomAD).

What do computational predictors say about ASB2 p.Leu431Met (c.1291C>A)?

AlphaMissense predicts likely pathogenic (score 0.729) — an in-silico prediction, not a clinical call.

ASB2 p.Leu431Met

c.1291C>A · rs930394408 · VCV3130162

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.729 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.005%, amr)

Computational evidence

Protein change
AlphaMissense	0.729	likely pathogenic
REVEL	0.362	indeterminate
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.8	GERP 1.4, phastCons 1
Regional constraint	o/e 1.05	unconstrained · MANE · 30 kb · p 0.18 · regional, not allelic
Overall
CADD	24.0	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM L383M vs ClinVar L431M) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.005% Admixed American · 3/59,980 alleles

Filtering AF 0.00133% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000668%

Overall 0.000186% 3/1,612,632 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: ASB2
Protein: p.Leu431Met
Coding: c.1291C>A
MANE Select: NM_001202429
dbSNP: rs930394408
Type: single nucleotide variant
Location: chr14:93939434 (GRCh38)
Gene constraint: LOEUF 1.243 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 83.96

Full ASB2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ASB2 p.Ala132Thr Uncertain significance ★ ⚠ same type
ASB2 p.Ala196Thr Uncertain significance ★ same type
ASB2 p.Ala212Asp Uncertain significance ★ ⚠ same type
ASB2 p.Ala229Thr Uncertain significance ★ ⚠ same type
ASB2 p.Ala269Thr Uncertain significance ★ ⚠ same type
ASB2 p.Ala305Thr Uncertain significance ★ ⚠ same type
ASB2 p.Ala330Thr Uncertain significance ★ ⚠ same type
ASB2 p.Ala376Pro 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/asb2-p-leu431met (accessed [today's date]).

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