Is DOCK2 p.Ser1254= (c.3762G>C) pathogenic?

DOCK2 p.Ser1254= (c.3762G>C) is classified Likely benign in DOCK2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-11). Ultra-rare (popmax 0.0626%, sas); Associated with DOCK2 deficiency.

What condition is associated with DOCK2 p.Ser1254= (c.3762G>C)?

DOCK2 p.Ser1254= (c.3762G>C) is associated with DOCK2 deficiency (ClinVar).

How common is DOCK2 p.Ser1254= (c.3762G>C) in the general population?

DOCK2 p.Ser1254= (c.3762G>C) is ultra-rare (popmax 0.0626%, sas) (gnomAD).

DOCK2 p.Ser1254=

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.3762G>C · rs756242440 · VCV1624120

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0626%, sas)

Conditions

DOCK2 deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP -3.1	GERP -3.8
Overall
CADD	1.297	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0626% South Asian · 57/90,992 alleles

Filtering AF 0.0496% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0449%

Overall 0.00632% 102/1,613,046 alleles · ultra-rare exomes 91/1,460,982 · genomes 11/152,064 · joint denominator

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0626%	1,596
Ashkenazi Jewishnot grpmax-eligible	0.0169%	5,915
Middle Eastern	0.0165%	6,064
Remaining individualsnot grpmax-eligible	0.00961%	10,404
Admixed American	0.005%	19,981
European (non-Finnish)	0.00229%	43,686
East Asian	0.00223%	44,824
Finnishnot grpmax-eligible	0.00156%	63,918
African / African-American	0.00134%	74,854

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.Ser1254=
Coding: c.3762G>C
MANE Select: NM_004946
dbSNP: rs756242440
Type: single nucleotide variant
Location: chr5:170042018 (GRCh38)
Gene constraint: LOEUF 0.421 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 80.40 · 6 PDB
Residue 1254: the docker domain; the 'interaction with crkl' region

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-ser1254 (accessed [today's date]).

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