Is PRKDC p.Arg3269= (c.9807A>G) pathogenic?

PRKDC p.Arg3269= (c.9807A>G) is classified Likely benign in PRKDC (ClinVar, Single submitter, 1 submitter; last evaluated 2023-10-22). Absent from gnomAD v4.1; Associated with severe combined immunodeficiency due to DNA-PKcs deficiency.

What condition is associated with PRKDC p.Arg3269= (c.9807A>G)?

PRKDC p.Arg3269= (c.9807A>G) is associated with severe combined immunodeficiency due to DNA-PKcs deficiency (ClinVar).

How common is PRKDC p.Arg3269= (c.9807A>G) in the general population?

PRKDC p.Arg3269= (c.9807A>G) is absent from gnomAD v4.1 (gnomAD).

PRKDC p.Arg3269=

Q: How is Severe combined immunodeficiency due to DNA-PKcs deficiency inherited?

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

c.9807A>G · rs2551863353 · VCV2770779

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

severe combined immunodeficiency due to DNA-PKcs 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 2.4	GERP -2.7, phastCons 1
Overall
CADD	8.151	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: PRKDC
Protein: p.Arg3269=
Coding: c.9807A>G
MANE Select: NM_006904
dbSNP: rs2551863353
Type: single nucleotide variant
Location: chr8:47803421 (GRCh38)
Gene constraint: LOEUF 0.183 · pLI 1.00 (gnomAD)
Residue 3269: the fat domain

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

Disease context

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

For Severe combined immunodeficiency due to DNA-PKcs deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

PRKDC p.Arg3269Lys Uncertain significance ★ ⚠ same residue
PRKDC c.2259+6C>T Uncertain significance ★★ same condition
PRKDC c.3464+4G>A Uncertain significance ★★ same condition
PRKDC c.5235+6T>C Uncertain significance ★★ same condition
PRKDC c.5919+5G>A Uncertain significance ★★ same condition
PRKDC p.Ala1008Val Uncertain significance ★★ ⚠ same condition
PRKDC p.Ala1103Val Uncertain significance ★★ ⚠ same condition
PRKDC p.Ala1130Ser 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/prkdc-p-arg3269 (accessed [today's date]).

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