Is DOCK3 p.Val668Met (c.2002G>A) pathogenic?

DOCK3 p.Val668Met (c.2002G>A) is classified Uncertain significance in DOCK3 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-05-02). AlphaMissense: likely pathogenic (0.9333); Very rare (popmax 0.00134%, afr); Associated with neurodevelopmental disorder with impaired intellectual development, hypotonia, and ataxia.

How common is DOCK3 p.Val668Met (c.2002G>A) in the general population?

DOCK3 p.Val668Met (c.2002G>A) is very rare (popmax 0.00134%, afr) (gnomAD).

What do computational predictors say about DOCK3 p.Val668Met (c.2002G>A)?

AlphaMissense predicts likely pathogenic (score 0.9333) — an in-silico prediction, not a clinical call.

DOCK3 p.Val668Met

Q: What condition is associated with DOCK3 p.Val668Met (c.2002G>A)?

DOCK3 p.Val668Met (c.2002G>A) is associated with neurodevelopmental disorder with impaired intellectual development, hypotonia, and ataxia (ClinVar).

c.2002G>A · rs369711717 · VCV1325500

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely pathogenic

0.9333 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00134%, afr)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

neurodevelopmental disorder with impaired intellectual development, hypotonia, and ataxia

Computational evidence

Protein change
AlphaMissense	0.9333	likely pathogenic
REVEL	0.44	indeterminate
SaProt	LLR -12.97	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.9, phastCons 1
Regional constraint	o/e 0.73	unconstrained · MANE · 154 kb · p 4e-32 · regional, not allelic
Overall
CADD	33.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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 0.00134% African / African-American · 1/74,874 alleles

Overall 0.000658% 1/152,082 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: DOCK3
Protein: p.Val668Met
Coding: c.2002G>A
MANE Select: NM_004947
dbSNP: rs369711717
Type: single nucleotide variant
Location: chr3:51237490 (GRCh38)
Gene constraint: LOEUF 0.298 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 75.52
Residue 668: a UniProt-annotated variant site (in nedidha)

Full DOCK3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

neurodevelopmental disorder with impaired intellectual development, hypotonia, and ataxia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

DOCK3 p.Arg392Gln Uncertain significance ★★ ⚠ same condition
DOCK3 p.Lys1296Arg Uncertain significance ★★ ⚠ same condition
DOCK3 p.Val148Met Uncertain significance ★★ ⚠ same condition
DOCK3 c.1918-3T>C Benign ★★ same condition
DOCK3 c.1038-2A>G Likely pathogenic ★ same condition
DOCK3 p.Arg2001Ter Likely pathogenic ★ same condition
DOCK3 p.Gln128Ter Pathogenic ★ same condition
DOCK3 p.Arg741Trp 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/dock3-p-val668met (accessed [today's date]).

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