3-52373050-A-G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_015512.5(DNAH1):​c.6982A>G​(p.Ile2328Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,610,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign 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. I2328S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.96

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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.27100566).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAH1NM_015512.5 linkc.6982A>G p.Ile2328Val missense_variant Exon 44 of 78 ENST00000420323.7 NP_056327.4 Q9P2D7-4A0A140VJI6
DNAH1XM_017006129.2 linkc.7051A>G p.Ile2351Val missense_variant Exon 46 of 80 XP_016861618.1
DNAH1XM_017006130.2 linkc.6982A>G p.Ile2328Val missense_variant Exon 45 of 79 XP_016861619.1 Q9P2D7-4A0A140VJI6
DNAH1XM_017006131.2 linkc.7051A>G p.Ile2351Val missense_variant Exon 46 of 79 XP_016861620.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAH1ENST00000420323.7 linkc.6982A>G p.Ile2328Val missense_variant Exon 44 of 78 1 NM_015512.5 ENSP00000401514.2 Q9P2D7-4
DNAH1ENST00000486752.5 linkn.7243A>G non_coding_transcript_exon_variant Exon 44 of 77 2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152266
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000408
AC:
1
AN:
245026
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1458126
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
725214
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33432
American (AMR)
AF:
0.0000224
AC:
1
AN:
44576
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26018
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39628
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86070
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51886
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1110496
Other (OTH)
AF:
0.00
AC:
0
AN:
60266
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
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

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:
0.0000131
AC:
2
AN:
152266
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74398
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41472
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68048
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.000243
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000826
AC:
1

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
Aug 10, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. 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 not expected to disrupt DNAH1 protein function. ClinVar contains an entry for this variant (Variation ID: 478483). This variant has not been reported in the literature in individuals affected with DNAH1-related conditions. This variant is present in population databases (rs377326562, gnomAD 0.003%). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 2328 of the DNAH1 protein (p.Ile2328Val). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
21
DANN
Uncertain
0.99
Eigen
Benign
0.15
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.97
T
PhyloP100
7.0
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-0.58
N
REVEL
Benign
0.15
Sift
Benign
0.24
T
Sift4G
Benign
0.58
T
Vest4
0.36
MVP
0.56
MPC
0.11
ClinPred
0.69
D
GERP RS
4.5
gMVP
0.20
Mutation Taster
=84/16
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs377326562; hg19: chr3-52407066; API