6-38870557-G-T

Position:

chr6-38870557-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001206927.2(DNAH8):c.6985G>T(p.Val2329Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000322 in 1,613,230 control chromosomes in the GnomAD database, including 1 homozygotes. 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 (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00034 ( 1 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.67

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:

DNAH8 (HGNC:):

DNAH8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16520175).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAH8	NM_001206927.2 linkuse as main transcript	c.6985G>T	p.Val2329Leu	missense_variant	49/93	ENST00000327475.11	NP_001193856.1	Q96JB1Q8IU65A0A075B6F3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
DNAH8	ENST00000327475.11 linkuse as main transcript	c.6985G>T	p.Val2329Leu	missense_variant	49/93	5	NM_001206927.2	ENSP00000333363.7	A0A075B6F3
DNAH8	ENST00000359357.7 linkuse as main transcript	c.6334G>T	p.Val2112Leu	missense_variant	47/91	2		ENSP00000352312.3	Q96JB1-1
DNAH8	ENST00000449981.6 linkuse as main transcript	c.6985G>T	p.Val2329Leu	missense_variant	48/82	5		ENSP00000415331.2	H0Y7V4

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152100

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000221

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000144

AC:

AN:

249742

Hom.:

AF XY:

0.000141

AC XY:

AN XY:

134992

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:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000311

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000345

AC:

504

AN:

1461130

Hom.:

Cov.:

AF XY:

0.000327

AC XY:

238

AN XY:

726828

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000434

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000105

AC:

AN:

152100

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74296

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000221

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000294

Hom.:

Bravo

AF:

0.000246

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000238

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 21, 2024

The c.6985G>T (p.V2329L) alteration is located in exon 49 (coding exon 48) of the DNAH8 gene. This alteration results from a G to T substitution at nucleotide position 6985, causing the valine (V) at amino acid position 2329 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Primary ciliary dyskinesia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 26, 2022

This sequence change replaces valine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 2329 of the DNAH8 protein (p.Val2329Leu). This variant is present in population databases (rs143397128, gnomAD 0.03%). 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: 407287). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). 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

0.31

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.26

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.030

T;T;T

Eigen

Benign

-0.038

Eigen_PC

Benign

0.12

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Benign

0.012

MetaRNN

Benign

0.17

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.88

.;.;L

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.6

.;N;N

REVEL

Benign

0.077

Sift

Uncertain

0.0050

.;D;T

Polyphen

0.064

.;.;B

Vest4

0.38

MutPred

0.58

.;.;Loss of ubiquitination at K2110 (P = 0.1113);

MVP

0.52

MPC

0.15

ClinPred

0.12

GERP RS

5.0

Varity_R

0.16

gMVP

0.59

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over