Genetic Variant DNAH8:p.Thr531Met (chr6-38761778-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001206927.2(DNAH8):c.1592C>T(p.Thr531Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000113 in 1,410,180 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.59

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3023585).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH8	NM_001206927.2 link	c.1592C>T	p.Thr531Met	missense_variant	Exon 11 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.1592C>T	p.Thr531Met	missense_variant	Exon 11 of 93	5	NM_001206927.2	ENSP00000333363.7	A0A075B6F3
DNAH8	ENST00000359357.7 link	c.941C>T	p.Thr314Met	missense_variant	Exon 9 of 91	2		ENSP00000352312.3	Q96JB1-1
DNAH8	ENST00000449981.6 link	c.1592C>T	p.Thr531Met	missense_variant	Exon 10 of 82	5		ENSP00000415331.2	H0Y7V4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000483

AC:

AN:

206992

Hom.:

AF XY:

0.00000884

AC XY:

AN XY:

113166

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000743

Gnomad SAS 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:

0.0000113

AC:

AN:

1410180

Hom.:

Cov.:

AF XY:

0.0000128

AC XY:

AN XY:

701688

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000280

Gnomad4 SAS exome

AF:

0.0000126

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000110

Gnomad4 OTH exome

AF:

0.0000345

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:1

Feb 13, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with DNAH8-related disease. This variant is present in population databases (rs376907315, ExAC 0.01%). This sequence change replaces threonine with methionine at codon 531 of the DNAH8 protein (p.Thr531Met). The threonine residue is highly conserved and there is a moderate physicochemical difference between threonine and methionine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.062

BayesDel_noAF

Benign

-0.33

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.019

T;T;T

Eigen

Uncertain

0.19

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.81

T;T;T

M_CAP

Benign

0.034

MetaRNN

Benign

0.30

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

.;.;L

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.83

.;N;N

REVEL

Benign

0.15

Sift

Benign

0.044

.;D;D

Polyphen

0.95

.;.;P

Vest4

0.46

MVP

0.73

MPC

0.44

ClinPred

0.63

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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