6-38873052-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001206927.2(DNAH8):c.7384G>A(p.Val2462Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000213 in 1,614,002 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. V2462V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 3.00

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 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20880625).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH8	NM_001206927.2 link	c.7384G>A	p.Val2462Ile	missense_variant	Exon 51 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.7384G>A	p.Val2462Ile	missense_variant	Exon 51 of 93	5	NM_001206927.2	ENSP00000333363.7	A0A075B6F3
DNAH8	ENST00000359357.7 link	c.6733G>A	p.Val2245Ile	missense_variant	Exon 49 of 91	2		ENSP00000352312.3	Q96JB1-1
DNAH8	ENST00000449981.6 link	c.7384G>A	p.Val2462Ile	missense_variant	Exon 50 of 82	5		ENSP00000415331.2	H0Y7V4

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000235

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000131

AC:

AN:

251080

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.000282

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000223

AC:

326

AN:

1461830

Hom.:

Cov.:

AF XY:

0.000204

AC XY:

148

AN XY:

727222

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000284

AC:

316

AN:

1111970

Other (OTH)

AF:

0.000132

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

105

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000118

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74338

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41438

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000235

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2094

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

Alfa

AF:

0.000217

Hom.:

Bravo

AF:

0.0000793

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000140

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000533

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 21, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.7384G>A (p.V2462I) alteration is located in exon 51 (coding exon 50) of the DNAH8 gene. This alteration results from a G to A substitution at nucleotide position 7384, causing the valine (V) at amino acid position 2462 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Primary ciliary dyskinesia

Uncertain:1

Oct 13, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 2462 of the DNAH8 protein (p.Val2462Ile). This variant is present in population databases (rs201809379, gnomAD 0.02%). 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: 454592). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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

Benign

-0.11

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.037

T;T;T

Eigen

Benign

0.013

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.053

MetaRNN

Benign

0.21

T;T;T

MetaSVM

Uncertain

-0.17

MutationAssessor

Uncertain

2.0

.;.;M

PhyloP100

3.0

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-0.98

.;N;N

REVEL

Uncertain

0.40

Sift

Benign

0.033

.;D;D

Polyphen

0.20

.;.;B

Vest4

0.39

MVP

0.72

MPC

0.33

ClinPred

0.16

GERP RS

5.0

Varity_R

0.14

gMVP

0.39

Mutation Taster

=90/10

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.16

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Loading publications...

6-38873052-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over