Is DOK7 p.Ala440Ser (c.1318G>T) pathogenic?

DOK7 p.Ala440Ser (c.1318G>T) is classified Uncertain significance in DOK7 (ClinVar, Single submitter, 1 submitter; last evaluated 2021-10-26). AlphaMissense: likely benign (0.0745); Very rare (popmax 0.00224%, eas); Associated with congenital myasthenic syndrome 10.

What condition is associated with DOK7 p.Ala440Ser (c.1318G>T)?

DOK7 p.Ala440Ser (c.1318G>T) is associated with congenital myasthenic syndrome 10, fetal akinesia deformation sequence 1 (ClinVar).

How common is DOK7 p.Ala440Ser (c.1318G>T) in the general population?

DOK7 p.Ala440Ser (c.1318G>T) is very rare (popmax 0.00224%, eas) (gnomAD).

What do computational predictors say about DOK7 p.Ala440Ser (c.1318G>T)?

AlphaMissense predicts likely benign (score 0.0745) — an in-silico prediction, not a clinical call.

DOK7 p.Ala440Ser

c.1318G>T · rs753026831 · VCV1353504

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0745 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00224%, eas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

congenital myasthenic syndrome 10

Computational evidence

Protein change
AlphaMissense	0.0745	likely benign
REVEL	0.123	moderately benign-leaning
SaProt	LLR -6.00	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 -0.44	GERP -1.9
Regional constraint	o/e 1.44	unconstrained · MANE · 30 kb · p 2.5e-31 · regional, not allelic
Overall
CADD	0.291	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 0.00224% East Asian · 1/44,596 alleles

Filtering AF 0.000502% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000367%

Overall 0.000825% 12/1,453,800 alleles · very rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00224%	44,596
European (non-Finnish)	0.000935%	106,984

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: DOK7
Protein: p.Ala440Ser
Coding: c.1318G>T
MANE Select: NM_173660
dbSNP: rs753026831
Type: single nucleotide variant
Location: chr4:3493304 (GRCh38)
Gene constraint: LOEUF 1.658 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 65.61
Residue 440: a UniProt-annotated variant site (in); the 'disordered' region

Full DOK7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

congenital myasthenic syndrome 10 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: fetal akinesia deformation sequence 1

Similar variants

DOK7 p.Ala440= Likely benign ★★ same residue
DOK7 p.Ala440Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
DOK7 c.331+1G>T Pathogenic ★★ same condition
DOK7 c.332-1G>A Likely pathogenic ★★ same condition
DOK7 c.332-1G>C Likely pathogenic ★★ same condition
DOK7 c.332-1G>T Likely pathogenic ★★ same condition
DOK7 p.Arg158Gln Pathogenic/Likely pathogenic ★★ same condition
DOK7 p.Arg201Ter Pathogenic ★★ 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/dok7-p-ala440ser (accessed [today's date]).

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