Is DOCK2 p.Lys558= (c.1674G>A) pathogenic?

DOCK2 p.Lys558= (c.1674G>A) is classified Likely benign in DOCK2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-07-01). Very rare (popmax 0.00282%, nfe); Associated with DOCK2 deficiency.

What condition is associated with DOCK2 p.Lys558= (c.1674G>A)?

DOCK2 p.Lys558= (c.1674G>A) is associated with DOCK2 deficiency (ClinVar).

How common is DOCK2 p.Lys558= (c.1674G>A) in the general population?

DOCK2 p.Lys558= (c.1674G>A) is very rare (popmax 0.00282%, nfe) (gnomAD).

DOCK2 p.Lys558=

Q: How is Combined immunodeficiency due to DOCK2 deficiency inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

c.1674G>A · rs747947431 · VCV1659770

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00282%, nfe)

Conditions

DOCK2 deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.8	GERP 1.4, phastCons 1
Overall
CADD	10.63	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00282% European (non-Finnish) · 33/1,172,208 alleles

Filtering AF 0.00201% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00177%

Overall 0.00225% 36/1,602,334 alleles · very rare exomes 36/1,450,008 · genomes 0/152,326 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00282%	35,521
African / African-American	0.00267%	37,425
Remaining individualsnot grpmax-eligible	0.00161%	61,956

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: DOCK2
Protein: p.Lys558=
Coding: c.1674G>A
MANE Select: NM_004946
dbSNP: rs747947431
Type: single nucleotide variant
Location: chr5:169714042 (GRCh38)
Gene constraint: LOEUF 0.421 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 80.40 · 6 PDB
Residue 558: the c2 dock-type domain

Full DOCK2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

DOCK2 deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Combined immunodeficiency due to DOCK2 deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

DOCK2 c.2267+3G>A Uncertain significance ★★ same condition
DOCK2 c.2704-3C>T Uncertain significance ★★ same condition
DOCK2 c.4467+4A>G Uncertain significance ★★ same condition
DOCK2 p.Ala1393Val Uncertain significance ★★ ⚠ same condition
DOCK2 p.Ala1710Val Uncertain significance ★★ ⚠ same condition
DOCK2 p.Ala1765Val Uncertain significance ★★ ⚠ same condition
DOCK2 p.Ala24Pro Uncertain significance ★★ ⚠ same condition
DOCK2 p.Ala454Val 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/dock2-p-lys558 (accessed [today's date]).

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