Is DIP2A p.Ala1408Val (c.4223C>T) pathogenic?

DIP2A p.Ala1408Val (c.4223C>T) is classified Uncertain significance in DIP2A (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-07). AlphaMissense: likely benign (0.0893); Ultra-rare (popmax 0.0379%, eas).

How common is DIP2A p.Ala1408Val (c.4223C>T) in the general population?

DIP2A p.Ala1408Val (c.4223C>T) is ultra-rare (popmax 0.0379%, eas) (gnomAD).

What do computational predictors say about DIP2A p.Ala1408Val (c.4223C>T)?

AlphaMissense predicts likely benign (score 0.0893) — an in-silico prediction, not a clinical call.

DIP2A p.Ala1408Val

c.4223C>T · VCV4011732

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0893 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0379%, eas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0893	likely benign
REVEL	0.055	moderately benign-leaning
SaProt	LLR -7.19	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 2.5	GERP 1.1, phastCons 0.98
Regional constraint	o/e 0.85	unconstrained · MANE · 108 kb · p 1.5e-11 · regional, not allelic
Overall
CADD	21.6	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 0.0379% East Asian · 17/44,860 alleles

Filtering AF 0.0241% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0198%

Overall 0.00304% 49/1,613,950 alleles · ultra-rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.0379%	2,639
South Asian	0.0154%	6,505
Remaining individualsnot grpmax-eligible	0.0032%	31,243
European (non-Finnish)	0.00136%	73,744

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: DIP2A
Protein: p.Ala1408Val
Coding: c.4223C>T
MANE Select: NM_015151
Type: single nucleotide variant
Location: chr21:46565771 (GRCh38)
Gene constraint: LOEUF 0.617 · pLI <0.01 · ClinGen HI 1/3 (gnomAD)
Structure: AlphaFold pLDDT 78.93

Full DIP2A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

DIP2A p.Ala676Thr Uncertain significance ★★ ⚠ same type
DIP2A p.Glu832Lys Uncertain significance ★★ ⚠ same type
DIP2A p.Pro333= Benign ★★ same type
DIP2A p.Pro798Leu Benign/Likely benign ★★ same type
DIP2A p.Thr848= Benign/Likely benign ★★ same type
DIP2A p.Val1531= Benign ★★ same type
DIP2A c.1429+2T>G Likely pathogenic ★ same type
DIP2A c.2395-2A>G 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/dip2a-p-ala1408val (accessed [today's date]).

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