Is DNAAF2 p.Ser102= (c.306C>T) pathogenic?

DNAAF2 p.Ser102= (c.306C>T) is classified Likely benign in DNAAF2 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-08-23). Very rare (popmax 8.73e-05%, nfe); Associated with primary ciliary dyskinesia.

What condition is associated with DNAAF2 p.Ser102= (c.306C>T)?

DNAAF2 p.Ser102= (c.306C>T) is associated with primary ciliary dyskinesia (ClinVar).

How common is DNAAF2 p.Ser102= (c.306C>T) in the general population?

DNAAF2 p.Ser102= (c.306C>T) is very rare (popmax 8.73e-05%, nfe) (gnomAD).

How is Primary ciliary dyskinesia inherited?

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

DNAAF2 p.Ser102=

c.306C>T · rs1555328112 · VCV1670936

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 8.73e-05%, nfe)

Conditions

primary ciliary dyskinesia

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 3.8	GERP -0.18, phastCons 1
Overall
CADD	9.892	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.73e-05% European (non-Finnish) · 1/1,145,822 alleles

Overall 7.18e-05% 1/1,393,200 alleles · very rare

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: DNAAF2
Protein: p.Ser102=
Coding: c.306C>T
MANE Select: NM_018139
dbSNP: rs1555328112
Type: single nucleotide variant
Location: chr14:49634844 (GRCh38)
Gene constraint: LOEUF 1.811 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 65.57
Residue 102: the 'disordered' region

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.Ser102Arg Uncertain significance ★ ⚠ same residue
DNAAF2 p.Ser102Asn Uncertain significance ★ ⚠ same residue
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

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-ser102 (accessed [today's date]).

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