rs375336311

Variant names:

Variant summary

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

The NM_001206927.2(DNAH8):c.7081G>T(p.Ala2361Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. 16/21 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. A2361V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.70

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 Gene-Disease associations (from GenCC):

spermatogenic failure 46
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen
spermatogenic failure 5
Inheritance: AR Classification: MODERATE Submitted by: Franklin by Genoox
primary ciliary dyskinesia
Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

DNAH8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH8	NM_001206927.2 link	c.7081G>T	p.Ala2361Ser	missense_variant	Exon 50 of 93	ENST00000327475.11	NP_001193856.1	Q96JB1Q8IU65A0A075B6F3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DNAH8	ENST00000327475.11 link	c.7081G>T	p.Ala2361Ser	missense_variant	Exon 50 of 93	5	NM_001206927.2	ENSP00000333363.7	A0A075B6F3
DNAH8	ENST00000359357.7 link	c.6430G>T	p.Ala2144Ser	missense_variant	Exon 48 of 91	2		ENSP00000352312.3	Q96JB1-1
DNAH8	ENST00000449981.6 link	c.7081G>T	p.Ala2361Ser	missense_variant	Exon 49 of 82	5		ENSP00000415331.2	H0Y7V4

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000266

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000239

AC:

AN:

251036

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.00

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:

0.0000123

AC:

AN:

1461790

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727208

show subpopulations

African (AFR)

AF:

0.000329

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39672

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111950

Other (OTH)

AF:

0.0000497

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.000289

AC:

AN:

41552

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.530

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000604

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000578

AC:

AN:

3476

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 29, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.7081G>T (p.A2361S) alteration is located in exon 50 (coding exon 49) of the DNAH8 gene. This alteration results from a G to T substitution at nucleotide position 7081, causing the alanine (A) at amino acid position 2361 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 05, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 2361 of the DNAH8 protein (p.Ala2361Ser). This variant is present in population databases (rs375336311, gnomAD 0.02%). This missense change has been observed in individual(s) with clinical features of primary ciliary dyskinesia (Invitae). ClinVar contains an entry for this variant (Variation ID: 525445). 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%. 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

Benign

0.13

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.35

CADD

Benign

9.2

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.067

T;T;T

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.56

FATHMM_MKL

Benign

0.70

LIST_S2

Benign

0.80

T;T;T

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.54

D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

.;.;L

PhyloP100

2.7

PrimateAI

Benign

0.47

PROVEAN

Benign

-1.8

.;N;N

REVEL

Benign

0.21

Sift

Benign

0.29

.;T;T

Polyphen

0.016

.;.;B

Vest4

0.46

MutPred

0.82

.;.;Gain of disorder (P = 0.026);

MVP

0.48

MPC

0.14

ClinPred

0.039

GERP RS

1.5

Varity_R

0.043

gMVP

0.47

Mutation Taster

=83/17

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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rs375336311

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