rs767190386

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_015512.5(DNAH1):c.8113C>T(p.Arg2705Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000995 in 1,608,150 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R2705G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.934

Variant links:

Genes affected

DNAH1 (HGNC:2940): (dynein axonemal heavy chain 1) This gene encodes an inner dynein arm heavy chain that provides structural support between the radial spokes and the outer doublet of the sperm tail. Naturally occurring mutations in this gene are associated with primary ciliary dyskinesia and multiple morphological anomalies of the flagella that result in asthenozoospermia and male infertility. Mice with a homozygous knockout of the orthologous gene are viable but have reduced sperm motility and are infertile. [provided by RefSeq, Feb 2017]

DNAH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DNAH1	NM_015512.5 linkuse as main transcript	c.8113C>T	p.Arg2705Cys	missense_variant	51/78	ENST00000420323.7
DNAH1	XM_017006129.2 linkuse as main transcript	c.8182C>T	p.Arg2728Cys	missense_variant	53/80
DNAH1	XM_017006130.2 linkuse as main transcript	c.8113C>T	p.Arg2705Cys	missense_variant	52/79
DNAH1	XM_017006131.2 linkuse as main transcript	c.8182C>T	p.Arg2728Cys	missense_variant	53/79

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAH1	ENST00000420323.7 linkuse as main transcript	c.8113C>T	p.Arg2705Cys	missense_variant	51/78	1	NM_015512.5	P1	Q9P2D7-4
DNAH1	ENST00000486752.5 linkuse as main transcript	n.8374C>T		non_coding_transcript_exon_variant	51/77	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152248

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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

GnomAD3 exomes

AF:

0.0000126

AC:

AN:

237828

Hom.:

AF XY:

0.0000233

AC XY:

AN XY:

129008

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:

0.0000341

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000186

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000962

AC:

AN:

1455902

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

723718

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:

0.0000469

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000901

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74386

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Spermatogenic failure 18;C4539798:Ciliary dyskinesia, primary, 37

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Sep 03, 2017

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 sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with DNAH1-related disease. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the ExAC database. This sequence change replaces arginine with cysteine at codon 2705 of the DNAH1 protein (p.Arg2705Cys). The arginine residue is moderately conserved and there is a large physicochemical difference between arginine and cysteine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.093

BayesDel_noAF

Benign

-0.10

Cadd

Pathogenic

Dann

Uncertain

1.0

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.18

FATHMM_MKL

Benign

0.56

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.073

MetaRNN

Uncertain

0.65

MetaSVM

Benign

-0.71

MutationTaster

Benign

1.0

PrimateAI

Benign

0.43

PROVEAN

Pathogenic

-6.3

REVEL

Benign

0.21

Sift

Uncertain

0.012

Sift4G

Benign

0.078

Vest4

0.68

MutPred

0.63

Loss of MoRF binding (P = 0.0065);

MVP

0.36

MPC

0.28

ClinPred

0.70

GERP RS

3.7

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.90

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.90

Position offset: -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