NM_015512.5:c.8885A>C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_015512.5(DNAH1):c.8885A>C(p.Lys2962Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000391 in 1,589,858 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00038 ( 1 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 7.30

Publications

4 publications found

Variant links:

Genes affected

DNAH1 (HGNC:2940): (dynein axonemal heavy chain 1) This gene encodes an inner dynein arm heavy chain that provides structural support between the radial spokes and the outer doublet of the sperm tail. Naturally occurring mutations in this gene are associated with primary ciliary dyskinesia and multiple morphological anomalies of the flagella that result in asthenozoospermia and male infertility. Mice with a homozygous knockout of the orthologous gene are viable but have reduced sperm motility and are infertile. [provided by RefSeq, Feb 2017]

DNAH1 Gene-Disease associations (from GenCC):

spermatogenic failure 18
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
ciliary dyskinesia, primary, 37
Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, ClinGen
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
non-syndromic male infertility due to sperm motility disorder
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DNAH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07671729).

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000383 (550/1437522) while in subpopulation MID AF = 0.00696 (40/5744). AF 95% confidence interval is 0.00526. There are 1 homozygotes in GnomAdExome4. There are 271 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
DNAH1	NM_015512.5 link	c.8885A>C	p.Lys2962Thr	missense_variant	Exon 56 of 78	ENST00000420323.7	NP_056327.4
DNAH1	XM_017006129.2 link	c.8954A>C	p.Lys2985Thr	missense_variant	Exon 58 of 80		XP_016861618.1
DNAH1	XM_017006130.2 link	c.8885A>C	p.Lys2962Thr	missense_variant	Exon 57 of 79		XP_016861619.1
DNAH1	XM_017006131.2 link	c.8954A>C	p.Lys2985Thr	missense_variant	Exon 58 of 79		XP_016861620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
DNAH1	ENST00000420323.7 link	c.8885A>C	p.Lys2962Thr	missense_variant	Exon 56 of 78	1	NM_015512.5	ENSP00000401514.2
DNAH1	ENST00000486752.5 link	n.9146A>C		non_coding_transcript_exon_variant	Exon 56 of 77	2
DNAH1	ENST00000488988.5 link	n.475A>C		non_coding_transcript_exon_variant	Exon 4 of 25	2

Frequencies

GnomAD3 genomes

AF:

0.000466

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00170

Gnomad ASJ

AF:

0.00230

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000382

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000432

AC:

AN:

205990

AF XY:

0.000449

show subpopulations

Gnomad AFR exome

AF:

0.0000880

Gnomad AMR exome

AF:

0.000671

Gnomad ASJ exome

AF:

0.00175

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000157

Gnomad NFE exome

AF:

0.000420

Gnomad OTH exome

AF:

0.00133

GnomAD4 exome

AF:

0.000383

AC:

550

AN:

1437522

Hom.:

Cov.:

AF XY:

0.000380

AC XY:

271

AN XY:

712656

show subpopulations

African (AFR)

AF:

0.00103

AC:

AN:

32930

American (AMR)

AF:

0.000755

AC:

AN:

41050

Ashkenazi Jewish (ASJ)

AF:

0.00203

AC:

AN:

25604

East Asian (EAS)

AF:

0.00

AC:

AN:

38518

South Asian (SAS)

AF:

0.000146

AC:

AN:

82076

European-Finnish (FIN)

AF:

0.0000388

AC:

AN:

51602

Middle Eastern (MID)

AF:

0.00696

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.000298

AC:

328

AN:

1100444

Other (OTH)

AF:

0.000856

AC:

AN:

59554

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

126

158

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000473

AC:

AN:

152336

Hom.:

Cov.:

AF XY:

0.000524

AC XY:

AN XY:

74488

show subpopulations

African (AFR)

AF:

0.000168

AC:

AN:

41576

American (AMR)

AF:

0.00170

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00230

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000382

AC:

AN:

68020

Other (OTH)

AF:

0.00189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000459

Hom.:

Bravo

AF:

0.000661

ESP6500AA

AF:

0.000513

AC:

ESP6500EA

AF:

0.000846

AC:

ExAC

AF:

0.000457

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Feb 16, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The DNAH1 c.8885A>C; p.Lys2962Thr variant (rs199602894), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 478506). This variant is observed in the general population with an overall allele frequency of 0.04% (94/237354 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.515). Due to limited information, the clinical significance of this variant is uncertain at this time.

Dec 15, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Reported in ClinVar (ClinVar Variant ID# 478506; ClinVar)

Ciliary dyskinesia, primary, 37

Uncertain:1

Aug 22, 2025

Johns Hopkins Genomics, Johns Hopkins University

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This DNAH1 missense variant (rs199602894) is present in a large population dataset (gnomAD v4.1.0: 622/1589858 total alleles, MAF 0.03912%, 1 homozygote; Middle Eastern 40/6038 alleles, MAF 0.6625%, 0 homozygotes). This variant has been reported in ClinVar (Variation ID 478506), but has not been reported in the literature in individuals with primary ciliary dyskinesia, to our knowledge. Of three bioinformatics tools queried, one predicts that the substitution would be damaging, one predicts that it would be tolerated, and one predicts an uncertain effect. The lysine residue at this position is evolutionarily conserved across most vertebrate species assessed. Due to insufficient evidence, we consider the clinical significance of c.8885A>C to be uncertain at this time.

Spermatogenic failure 18

Uncertain:1

Sep 10, 2025

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Spermatogenic failure 18;C4539798:Ciliary dyskinesia, primary, 37

Benign:1

Jan 13, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DNAH1-related disorder

Benign:1

Dec 01, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.55

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.61

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.077

MetaSVM

Uncertain

0.35

PhyloP100

7.3

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-5.4

Sift

Uncertain

0.0050

Sift4G

Benign

0.076

Vest4

0.50

ClinPred

0.10

GERP RS

4.2

gMVP

0.70

Mutation Taster

=51/49

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over