Is DOCK2 p.His1049= (c.3147C>T) pathogenic?

DOCK2 p.His1049= (c.3147C>T) is classified Likely benign in DOCK2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2026-01-26). Ultra-rare (popmax 0.0417%, sas); Associated with DOCK2 deficiency.

What condition is associated with DOCK2 p.His1049= (c.3147C>T)?

DOCK2 p.His1049= (c.3147C>T) is associated with DOCK2 deficiency (ClinVar).

How common is DOCK2 p.His1049= (c.3147C>T) in the general population?

DOCK2 p.His1049= (c.3147C>T) is ultra-rare (popmax 0.0417%, sas) (gnomAD).

DOCK2 p.His1049=

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.3147C>T · rs199995403 · VCV2192789

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0417%, sas)

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 -6.2	GERP -3.5
Overall
CADD	4.986	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0417% South Asian · 38/91,086 alleles

Filtering AF 0.0312% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0275%

Overall 0.00427% 69/1,614,114 alleles · ultra-rare exomes 65/1,461,808 · genomes 4/152,306 · joint denominator

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0417%	2,397
Middle Eastern	0.033%	3,031
African / African-American	0.0107%	9,380
Remaining individualsnot grpmax-eligible	0.0064%	15,626
East Asian	0.00223%	44,880
Admixed American	0.00167%	60,016
European (non-Finnish)	0.00127%	78,665

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.His1049=
Coding: c.3147C>T
MANE Select: NM_004946
dbSNP: rs199995403
Type: single nucleotide variant
Location: chr5:170008571 (GRCh38)
Gene constraint: LOEUF 0.421 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 80.40 · 6 PDB
Residue 1049: 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 p.His1049Gln Uncertain significance ★ ⚠ same residue
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

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-his1049 (accessed [today's date]).

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