Is AP3B2 p.Ala968Val (c.2903C>T) pathogenic?

AP3B2 p.Ala968Val (c.2903C>T) is classified Uncertain significance in AP3B2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-05). AlphaMissense: likely benign (0.1391); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with AP3B2 p.Ala968Val (c.2903C>T)?

AP3B2 p.Ala968Val (c.2903C>T) is associated with Inborn genetic diseases (ClinVar).

How common is AP3B2 p.Ala968Val (c.2903C>T) in the general population?

AP3B2 p.Ala968Val (c.2903C>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about AP3B2 p.Ala968Val (c.2903C>T)?

AlphaMissense predicts likely benign (score 0.1391) — an in-silico prediction, not a clinical call.

AP3B2 p.Ala968Val

c.2903C>T · VCV4115219

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1391 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,601,600)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1391	likely benign
REVEL	0.247	benign-leaning
SaProt	LLR -5.52	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 9.8	GERP 1.9, phastCons 1
Regional constraint	o/e 1.03	unconstrained · MANE · 5,925 bp · p 0.51 · regional, not allelic
Overall
CADD	25.9	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 A949V vs ClinVar A968V) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,601,600). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: AP3B2
Protein: p.Ala968Val
Coding: c.2903C>T
MANE Select: NM_001278512
Type: single nucleotide variant
Location: chr15:82662183 (GRCh38)
Gene constraint: LOEUF 0.52 · pLI 0.22 (gnomAD)
Structure: AlphaFold pLDDT 75.73

Full AP3B2 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

AP3B2 p.Ala968= Likely benign ★ same residue
AP3B2 c.2834-3C>A Uncertain significance ★★ same condition
AP3B2 p.Ala1076Pro Uncertain significance ★★ ⚠ same condition
AP3B2 p.Ala1098Asp Uncertain significance ★★ ⚠ same condition
AP3B2 p.Ala4Val Uncertain significance ★★ ⚠ same condition
AP3B2 p.Ala633Val Uncertain significance ★★ ⚠ same condition
AP3B2 p.Ala710Thr Uncertain significance ★★ ⚠ same condition
AP3B2 p.Ala71Thr 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/ap3b2-p-ala968val (accessed [today's date]).

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