Is ASB2 p.Val176Ile (c.526G>A) pathogenic?

ASB2 p.Val176Ile (c.526G>A) is classified Uncertain significance in ASB2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-11-06). AlphaMissense: likely benign (0.0784); Ultra-rare (popmax 0.0242%, sas).

How common is ASB2 p.Val176Ile (c.526G>A) in the general population?

ASB2 p.Val176Ile (c.526G>A) is ultra-rare (popmax 0.0242%, sas) (gnomAD).

What do computational predictors say about ASB2 p.Val176Ile (c.526G>A)?

AlphaMissense predicts likely benign (score 0.0784) — an in-silico prediction, not a clinical call.

ASB2 p.Val176Ile

c.526G>A · rs141584945 · VCV3130173

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0784 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0242%, sas)

Missense predictors

0/2 damaging

AlphaMissense, REVEL

Computational evidence

Protein change
AlphaMissense	0.0784	likely benign
REVEL	0.086	moderately benign-leaning
⇒ AlphaMissense and REVEL both call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 4.4	GERP -3.4, phastCons 1
Regional constraint	o/e 1.05	unconstrained · MANE · 30 kb · p 0.18 · regional, not allelic
Overall
CADD	18.38	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.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM V128I vs ClinVar V176I) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0242% South Asian · 22/90,764 alleles

Filtering AF 0.0163% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0138%

Overall 0.00846% 136/1,608,018 alleles · ultra-rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0242%	4,126
European (non-Finnish)	0.00885%	11,301
Finnishnot grpmax-eligible	0.00626%	15,981
Remaining individualsnot grpmax-eligible	0.00482%	20,727
Admixed American	0.00334%	29,932
African / African-American	0.00134%	74,860

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.Val176Ile
Coding: c.526G>A
MANE Select: NM_001202429
dbSNP: rs141584945
Type: single nucleotide variant
Location: chr14:93953460 (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.Val176Ala Uncertain significance ★ same residue
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

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-val176ile (accessed [today's date]).

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