Is DNAH5 p.Ala418Thr (c.1252G>A) pathogenic?

DNAH5 p.Ala418Thr (c.1252G>A) is classified Conflicting classifications of pathogenicity in DNAH5 (ClinVar, Conflicting submitters, 3 submitters; last evaluated 2026-01-21). AlphaMissense: likely benign (0.0727); Rare (popmax 0.182%, mid); Associated with primary ciliary dyskinesia.

What condition is associated with DNAH5 p.Ala418Thr (c.1252G>A)?

DNAH5 p.Ala418Thr (c.1252G>A) is associated with primary ciliary dyskinesia (ClinVar).

How common is DNAH5 p.Ala418Thr (c.1252G>A) in the general population?

DNAH5 p.Ala418Thr (c.1252G>A) is rare (popmax 0.182%, mid) (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 DNAH5 p.Ala418Thr (c.1252G>A)?

AlphaMissense predicts likely benign (score 0.0727) — an in-silico prediction, not a clinical call.

DNAH5 p.Ala418Thr

c.1252G>A · rs140388814 · VCV1761101

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.0727 · ACMG-weighted

gnomAD v4.1

Rare

rare (popmax 0.182%, mid)

Missense predictors

0/2 damaging

AlphaMissense, REVEL

Conditions

primary ciliary dyskinesia

Computational evidence

Protein change
AlphaMissense	0.0727	likely benign
REVEL	0.072	moderately benign-leaning
⇒ AlphaMissense and REVEL both call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.8	GERP -0.97, phastCons 0.008
Regional constraint	o/e 0.98	unconstrained · MANE · 228 kb · p 0.16 · regional, not allelic
Overall
CADD	17.63	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.182% Middle Eastern · 11/6,044 alleles

Filtering AF 0.102% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0789%

Overall 0.00576% 93/1,613,200 alleles · rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.182%	549
Admixed American	0.0417%	2,400
Remaining individualsnot grpmax-eligible	0.016%	6,247
African / African-American	0.00667%	14,999
European (non-Finnish)	0.00322%	31,035
Finnishnot grpmax-eligible	0.00312%	32,001
South Asian	0.0022%	45,525

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: DNAH5
Protein: p.Ala418Thr
Coding: c.1252G>A
MANE Select: NM_001369
dbSNP: rs140388814
Type: single nucleotide variant
Location: chr5:13914588 (GRCh38)
Gene constraint: LOEUF 0.764 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Residue 418: the 'stem' region

Full DNAH5 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

DNAH5 c.10555+1G>C Likely pathogenic ★★ same condition
DNAH5 c.1089+1G>A Pathogenic ★★ same condition
DNAH5 c.11028+2T>C Pathogenic/Likely pathogenic ★★ same condition
DNAH5 c.11029-2A>T Pathogenic/Likely pathogenic ★★ same condition
DNAH5 c.11571-1G>A Pathogenic ★★ same condition
DNAH5 c.12910-1G>C Pathogenic/Likely pathogenic ★★ same condition
DNAH5 c.1320+1G>A Likely pathogenic ★★ same condition
DNAH5 c.13338+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/dnah5-p-ala418thr (accessed [today's date]).

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