rs749580264

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_015512.5(DNAH1):​c.8816G>A​(p.Arg2939His) variant causes a missense change. The variant allele was found at a frequency of 0.0000197 in 1,577,406 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2939C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.03

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.86

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAH1NM_015512.5 linkc.8816G>A p.Arg2939His missense_variant Exon 56 of 78 ENST00000420323.7 NP_056327.4
DNAH1XM_017006129.2 linkc.8885G>A p.Arg2962His missense_variant Exon 58 of 80 XP_016861618.1
DNAH1XM_017006130.2 linkc.8816G>A p.Arg2939His missense_variant Exon 57 of 79 XP_016861619.1
DNAH1XM_017006131.2 linkc.8885G>A p.Arg2962His missense_variant Exon 58 of 79 XP_016861620.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAH1ENST00000420323.7 linkc.8816G>A p.Arg2939His missense_variant Exon 56 of 78 1 NM_015512.5 ENSP00000401514.2
DNAH1ENST00000486752.5 linkn.9077G>A non_coding_transcript_exon_variant Exon 56 of 77 2
DNAH1ENST00000488988.5 linkn.406G>A non_coding_transcript_exon_variant Exon 4 of 25 2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152186
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000153
AC:
3
AN:
195496
AF XY:
0.0000190
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000549
Gnomad NFE exome
AF:
0.0000235
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000196
AC:
28
AN:
1425220
Hom.:
0
Cov.:
31
AF XY:
0.0000184
AC XY:
13
AN XY:
705548
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32600
American (AMR)
AF:
0.00
AC:
0
AN:
39548
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25186
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37818
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80760
European-Finnish (FIN)
AF:
0.0000395
AC:
2
AN:
50636
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5594
European-Non Finnish (NFE)
AF:
0.0000219
AC:
24
AN:
1094128
Other (OTH)
AF:
0.0000339
AC:
2
AN:
58950
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152186
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41444
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000192
AC:
1
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000107
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000167
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Spermatogenic failure 18;C4539798:Ciliary dyskinesia, primary, 37 Uncertain:1
Jun 17, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 2939 of the DNAH1 protein (p.Arg2939His). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with DNAH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 478505). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt DNAH1 protein function with a positive predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.76
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
31
DANN
Pathogenic
1.0
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.96
D
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.86
D
MetaSVM
Uncertain
0.58
D
PhyloP100
7.0
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-4.2
D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.015
D
Vest4
0.82
ClinPred
0.99
D
GERP RS
4.2
gMVP
0.57
Mutation Taster
=59/41
polymorphism

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

Other links and lift over

dbSNP: rs749580264; hg19: chr3-52420682; COSMIC: COSV70229669; COSMIC: COSV70229669; API