rs745615652

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001206927.2(DNAH8):​c.11284G>A​(p.Gly3762Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000323 in 1,549,678 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. G3762D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

8
6
4

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 9.50

Publications

0 publications found
Variant links:
Genes affected
DNAH8 (HGNC:2952): (dynein axonemal heavy chain 8) The protein encoded by this gene is a heavy chain of an axonemal dynein involved in sperm and respiratory cilia motility. Axonemal dyneins generate force through hydrolysis of ATP and binding to microtubules. [provided by RefSeq, Jan 2012]
DNAH8-AS1 (HGNC:40188): (DNAH8 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.89

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAH8NM_001206927.2 linkc.11284G>A p.Gly3762Ser missense_variant Exon 76 of 93 ENST00000327475.11 NP_001193856.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAH8ENST00000327475.11 linkc.11284G>A p.Gly3762Ser missense_variant Exon 76 of 93 5 NM_001206927.2 ENSP00000333363.7

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152006
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000189
AC:
4
AN:
211358
AF XY:
0.0000261
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000405
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000298
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000351
AC:
49
AN:
1397672
Hom.:
0
Cov.:
28
AF XY:
0.0000404
AC XY:
28
AN XY:
693166
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30508
American (AMR)
AF:
0.0000565
AC:
2
AN:
35404
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24154
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36350
South Asian (SAS)
AF:
0.0000134
AC:
1
AN:
74748
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52290
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5568
European-Non Finnish (NFE)
AF:
0.0000407
AC:
44
AN:
1081080
Other (OTH)
AF:
0.0000347
AC:
2
AN:
57570
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.429
Heterozygous variant carriers
0
3
6
9
12
15
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:
0.00000658
AC:
1
AN:
152006
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74226
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41388
American (AMR)
AF:
0.00
AC:
0
AN:
15254
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10592
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67988
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000451
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 28, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.11284G>A (p.G3762S) alteration is located in exon 76 (coding exon 75) of the DNAH8 gene. This alteration results from a G to A substitution at nucleotide position 11284, causing the glycine (G) at amino acid position 3762 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Primary ciliary dyskinesia Uncertain:1
Jan 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 3762 of the DNAH8 protein (p.Gly3762Ser). This variant is present in population databases (rs745615652, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with DNAH8-related conditions. ClinVar contains an entry for this variant (Variation ID: 525450). 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 DNAH8 protein function with a negative predictive value of 80%. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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
Uncertain
0.43
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Pathogenic
0.17
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.33
T;T;T
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.93
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Benign
0.052
D
MetaRNN
Pathogenic
0.89
D;D;D
MetaSVM
Benign
-0.58
T
MutationAssessor
Pathogenic
3.7
.;.;H
PhyloP100
9.5
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-5.9
.;D;D
REVEL
Uncertain
0.62
Sift
Uncertain
0.0030
.;D;D
Polyphen
1.0
.;.;D
Vest4
0.97
MVP
0.87
MPC
0.57
ClinPred
0.98
D
GERP RS
5.7
Varity_R
0.62
gMVP
0.77
Mutation Taster
=59/41
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs745615652; hg19: chr6-38899596; API