Is DOCK8 p.Arg1065Trp (c.3193C>T) pathogenic?

DOCK8 p.Arg1065Trp (c.3193C>T) is classified Uncertain significance in DOCK8 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2026-02-02). AlphaMissense: likely pathogenic (0.7519); Very rare (popmax 0.005%, amr); Associated with combined immunodeficiency due to DOCK8 deficiency.

What condition is associated with DOCK8 p.Arg1065Trp (c.3193C>T)?

DOCK8 p.Arg1065Trp (c.3193C>T) is associated with combined immunodeficiency due to DOCK8 deficiency (ClinVar).

How common is DOCK8 p.Arg1065Trp (c.3193C>T) in the general population?

DOCK8 p.Arg1065Trp (c.3193C>T) is very rare (popmax 0.005%, amr) (gnomAD).

What do computational predictors say about DOCK8 p.Arg1065Trp (c.3193C>T)?

AlphaMissense predicts likely pathogenic (score 0.7519) — an in-silico prediction, not a clinical call.

DOCK8 p.Arg1065Trp

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.3193C>T · rs146891937 · VCV366967

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely pathogenic

0.7519 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.005%, amr)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

combined immunodeficiency due to DOCK8 deficiency

Computational evidence

Protein change
AlphaMissense	0.7519	likely pathogenic
REVEL	0.583	indeterminate
SaProt	LLR -12.09	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 3.6	GERP 0.9, phastCons 1
Regional constraint	o/e 1.15	unconstrained · MANE · 235 kb · p 6.4e-14 · regional, not allelic
Overall
CADD	26.5	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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 0.005% Admixed American · 3/59,994 alleles

Filtering AF 0.00259% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00233%

Overall 0.00341% 55/1,613,800 alleles · very rare

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.0096%	10,414
Admixed Americangrpmax	0.005%	19,998
East Asian	0.00445%	22,448
European (non-Finnish)	0.00347%	28,780
South Asian	0.0022%	45,537
African / African-American	0.00134%	74,876

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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.Arg1065Trp
Coding: c.3193C>T
MANE Select: NM_203447
dbSNP: rs146891937
Type: single nucleotide variant
Location: chr9:399218 (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.Arg1065Leu Uncertain significance ★★ ⚠ same residue
DOCK8 p.Arg1065Gln Uncertain significance ★ ⚠ same residue
DOCK8 p.Arg1065= Likely benign ★ 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

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-arg1065trp (accessed [today's date]).

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