Is DOCK8 p.Pro173= (c.519C>G) pathogenic?

DOCK8 p.Pro173= (c.519C>G) is classified Likely benign in DOCK8 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-06-21). Very rare (popmax 0.00891%, eas); Associated with combined immunodeficiency due to DOCK8 deficiency.

What condition is associated with DOCK8 p.Pro173= (c.519C>G)?

DOCK8 p.Pro173= (c.519C>G) is associated with combined immunodeficiency due to DOCK8 deficiency (ClinVar).

How common is DOCK8 p.Pro173= (c.519C>G) in the general population?

DOCK8 p.Pro173= (c.519C>G) is very rare (popmax 0.00891%, eas) (gnomAD).

DOCK8 p.Pro173=

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.519C>G · rs557936536 · VCV2902455

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00891%, eas)

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 -0.63	GERP -5.2, phastCons 0.003
Overall
CADD	5.576	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00891% East Asian · 4/44,882 alleles

Filtering AF 0.00298% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0018%

Overall 0.000434% 7/1,614,146 alleles · very rare exomes 7/1,461,860 · genomes 0/152,286 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00891%	11,220
Remaining individualsnot grpmax-eligible	0.0016%	62,504
European (non-Finnish)	0.000169%	590,002

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.Pro173=
Coding: c.519C>G
MANE Select: NM_203447
dbSNP: rs557936536
Type: single nucleotide variant
Location: chr9:304695 (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.Pro173Ala Uncertain significance ★ ⚠ same residue
DOCK8 p.Pro173Ser Uncertain significance ★ ⚠ same residue
DOCK8 p.Pro173Leu Uncertain significance ★ ⚠ 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-pro173 (accessed [today's date]).

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