Is ITGA3 p.Arg156Gln (c.467G>A) pathogenic?

ITGA3 p.Arg156Gln (c.467G>A) is classified Uncertain significance in ITGA3 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-11-17). AlphaMissense: likely benign (0.1716); Very rare (popmax 0.00668%, eas); Associated with Inborn genetic diseases.

What condition is associated with ITGA3 p.Arg156Gln (c.467G>A)?

ITGA3 p.Arg156Gln (c.467G>A) is associated with Inborn genetic diseases (ClinVar).

How common is ITGA3 p.Arg156Gln (c.467G>A) in the general population?

ITGA3 p.Arg156Gln (c.467G>A) is very rare (popmax 0.00668%, eas) (gnomAD).

What do computational predictors say about ITGA3 p.Arg156Gln (c.467G>A)?

AlphaMissense predicts likely benign (score 0.1716) — an in-silico prediction, not a clinical call.

ITGA3 p.Arg156Gln

c.467G>A · rs750191749 · VCV3111214

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1716 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00668%, eas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1716	likely benign
REVEL	0.129	moderately benign-leaning
SaProt	LLR -9.13	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 1.8, phastCons 1
Regional constraint	o/e 0.67	unconstrained · MANE · 18 kb · p 5.2e-14 · regional, not allelic
Overall
CADD	24.1	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 0.00668% East Asian · 3/44,902 alleles

Filtering AF 0.00177% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000891%

Overall 0.000496% 8/1,614,032 alleles · very rare exomes 6/1,461,794 · genomes 2/152,238 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00668%	14,967
South Asian	0.0022%	45,544
European (non-Finnish)	0.000254%	393,349

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: ITGA3
Protein: p.Arg156Gln
Coding: c.467G>A
MANE Select: NM_002204
dbSNP: rs750191749
Type: single nucleotide variant
Location: chr17:50068108 (GRCh38)
Gene constraint: LOEUF 0.69 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 83.88

Full ITGA3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

ITGA3 p.Arg156Trp Uncertain significance ★★ ⚠ same residue
ITGA3 p.Arg293Trp Uncertain significance ★★ ⚠ same condition
ITGA3 p.Arg524His Uncertain significance ★★ ⚠ same condition
ITGA3 p.Arg525Trp Uncertain significance ★★ ⚠ same condition
ITGA3 p.Arg589Pro Uncertain significance ★★ ⚠ same condition
ITGA3 p.Arg932Gln Uncertain significance ★★ ⚠ same condition
ITGA3 p.Glu668Asp Uncertain significance ★★ same condition
ITGA3 p.Gly533Ser Uncertain significance ★★ ⚠ 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/itga3-p-arg156gln (accessed [today's date]).

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