Is DOCK8 p.Ala329= (c.987G>A) pathogenic?

DOCK8 p.Ala329= (c.987G>A) is classified Likely benign in DOCK8 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-12-02). Very rare (popmax 0.005%, amr); Associated with combined immunodeficiency due to DOCK8 deficiency.

What condition is associated with DOCK8 p.Ala329= (c.987G>A)?

DOCK8 p.Ala329= (c.987G>A) is associated with combined immunodeficiency due to DOCK8 deficiency (ClinVar).

How common is DOCK8 p.Ala329= (c.987G>A) in the general population?

DOCK8 p.Ala329= (c.987G>A) is very rare (popmax 0.005%, amr) (gnomAD).

DOCK8 p.Ala329=

Q: How is Combined immunodeficiency due to DOCK8 deficiency inherited?

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

c.987G>A · rs1013880203 · VCV731975

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.005%, amr)

Conditions

combined immunodeficiency due to DOCK8 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 -1.8	GERP -5.5
Overall
CADD	3.01	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.005% Admixed American · 3/60,008 alleles

Filtering AF 0.00133% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000668%

Overall 0.00062% 10/1,614,046 alleles · very rare exomes 8/1,461,844 · genomes 2/152,202 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.005%	20,003
Remaining individualsnot grpmax-eligible	0.0032%	31,245
African / African-American	0.00267%	37,467
East Asian	0.00223%	44,886
South Asian	0.0011%	91,082
European (non-Finnish)	8.47e-05%	1,180,022

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: DOCK8
Protein: p.Ala329=
Coding: c.987G>A
MANE Select: NM_203447
dbSNP: rs1013880203
Type: single nucleotide variant
Location: chr9:328114 (GRCh38)
Gene constraint: LOEUF 0.622 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 75.17

Full DOCK8 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

combined immunodeficiency due to DOCK8 deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Combined immunodeficiency due to DOCK8 deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

DOCK8 p.Ala329Val Conflicting classifications of pathogenicity ★ ⚠ same residue
DOCK8 c.1680-2A>G Likely pathogenic ★★ same condition
DOCK8 c.2779-2A>C Likely pathogenic ★★ same condition
DOCK8 c.2971-1G>A Pathogenic ★★ same condition
DOCK8 c.3530+1G>A Likely pathogenic ★★ same condition
DOCK8 c.528+1G>A Likely pathogenic ★★ same condition
DOCK8 c.529-2A>G Likely pathogenic ★★ same condition
DOCK8 p.Arg1388Ter 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/dock8-p-ala329 (accessed [today's date]).

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