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rs766256391

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_001206927.2(DNAH8):​c.7866G>A​(p.Trp2622Ter) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000509 in 1,572,696 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 Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000049 ( 0 hom. )

Consequence

DNAH8
NM_001206927.2 stop_gained

Scores

5
1
1

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 9.47
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 6-38882917-G-A is Pathogenic according to our data. Variant chr6-38882917-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 407300.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAH8NM_001206927.2 linkuse as main transcriptc.7866G>A p.Trp2622Ter stop_gained 54/93 ENST00000327475.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAH8ENST00000327475.11 linkuse as main transcriptc.7866G>A p.Trp2622Ter stop_gained 54/935 NM_001206927.2 P2
DNAH8ENST00000359357.7 linkuse as main transcriptc.7215G>A p.Trp2405Ter stop_gained 52/912 A2Q96JB1-1
DNAH8ENST00000449981.6 linkuse as main transcriptc.7866G>A p.Trp2622Ter stop_gained 53/825

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152074
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:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000223
AC:
5
AN:
224350
Hom.:
0
AF XY:
0.0000246
AC XY:
3
AN XY:
121816
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 SAS exome
AF:
0.000202
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000493
AC:
7
AN:
1420622
Hom.:
0
Cov.:
29
AF XY:
0.00000709
AC XY:
5
AN XY:
705506
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000788
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.13e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152074
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000330
AC:
4

ClinVar

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

Submissions by phenotype

Primary ciliary dyskinesia Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInvitaeAug 09, 2022ClinVar contains an entry for this variant (Variation ID: 407300). For these reasons, this variant has been classified as Pathogenic. This variant has not been reported in the literature in individuals affected with DNAH8-related conditions. This variant is present in population databases (rs766256391, gnomAD 0.02%). This sequence change creates a premature translational stop signal (p.Trp2622*) in the DNAH8 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in DNAH8 are known to be pathogenic (PMID: 24307375, 32619401, 32681648). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.43
D
BayesDel_noAF
Pathogenic
0.66
CADD
Pathogenic
49
DANN
Uncertain
1.0
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.96
FATHMM_MKL
Pathogenic
1.0
D
MutationTaster
Benign
1.0
A;A;A
Vest4
0.54
GERP RS
5.9

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs766256391; hg19: chr6-38850693; API