Is DNAAF2 p.Arg50Gln (c.149G>A) pathogenic?

DNAAF2 p.Arg50Gln (c.149G>A) is classified Uncertain significance in DNAAF2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-30). AlphaMissense: likely benign (0.0986); Absent from gnomAD v4.1; Associated with primary ciliary dyskinesia.

What condition is associated with DNAAF2 p.Arg50Gln (c.149G>A)?

DNAAF2 p.Arg50Gln (c.149G>A) is associated with primary ciliary dyskinesia (ClinVar).

How common is DNAAF2 p.Arg50Gln (c.149G>A) in the general population?

DNAAF2 p.Arg50Gln (c.149G>A) is absent from gnomAD v4.1 (gnomAD).

How is Primary ciliary dyskinesia inherited?

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

What do computational predictors say about DNAAF2 p.Arg50Gln (c.149G>A)?

AlphaMissense predicts likely benign (score 0.0986) — an in-silico prediction, not a clinical call.

DNAAF2 p.Arg50Gln

c.149G>A · VCV4241748

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0986 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

primary ciliary dyskinesia

Computational evidence

Protein change
AlphaMissense	0.0986	likely benign
REVEL	0.055	moderately benign-leaning
SaProt	LLR -9.94	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 3.9	GERP 1.7, phastCons 0.95
Regional constraint	o/e 1.11	unconstrained · MANE · 9,604 bp · p 0.00019 · regional, not allelic
Overall
CADD	23.3	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — 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

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: DNAAF2
Protein: p.Arg50Gln
Coding: c.149G>A
MANE Select: NM_018139
Type: single nucleotide variant
Location: chr14:49635001 (GRCh38)
Gene constraint: LOEUF 1.811 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 65.57

Full DNAAF2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

primary ciliary dyskinesia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Primary ciliary dyskinesia (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive, X-linked recessive
Onset: Neonatal
Prevalence: 1-5 / 10 000 (Pakistan)

Similar variants

DNAAF2 p.Gln504Ter Pathogenic/Likely pathogenic ★★ same condition
DNAAF2 p.Gln529Ter Pathogenic/Likely pathogenic ★★ same condition
DNAAF2 p.Glu130Ter Pathogenic/Likely pathogenic ★★ same condition
DNAAF2 p.Glu243Ter Likely pathogenic ★★ same condition
DNAAF2 p.Ala100Gly Uncertain significance ★★ ⚠ same condition
DNAAF2 p.Ala126Val Uncertain significance ★★ ⚠ same condition
DNAAF2 p.Ala211Thr Uncertain significance ★★ ⚠ same condition
DNAAF2 p.Ala358Thr 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/dnaaf2-p-arg50gln (accessed [today's date]).

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