rs77451372

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015512.5(DNAH1):c.8048G>A(p.Arg2683Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00007 in 1,613,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00036 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.89

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 Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.030554801).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DNAH1	NM_015512.5 linkuse as main transcript	c.8048G>A	p.Arg2683Gln	missense_variant	51/78	ENST00000420323.7
DNAH1	XM_017006129.2 linkuse as main transcript	c.8117G>A	p.Arg2706Gln	missense_variant	53/80
DNAH1	XM_017006130.2 linkuse as main transcript	c.8048G>A	p.Arg2683Gln	missense_variant	52/79
DNAH1	XM_017006131.2 linkuse as main transcript	c.8117G>A	p.Arg2706Gln	missense_variant	53/79

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAH1	ENST00000420323.7 linkuse as main transcript	c.8048G>A	p.Arg2683Gln	missense_variant	51/78	1	NM_015512.5	P1	Q9P2D7-4
DNAH1	ENST00000486752.5 linkuse as main transcript	n.8309G>A		non_coding_transcript_exon_variant	51/77	2

Frequencies

GnomAD3 genomes

AF:

0.000361

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00128

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000129

AC:

AN:

248938

Hom.:

AF XY:

0.000126

AC XY:

AN XY:

135086

show subpopulations

Gnomad AFR exome

AF:

0.00149

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000397

AC:

AN:

1461590

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727080

show subpopulations

Gnomad4 AFR exome

AF:

0.00114

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.000361

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.000416

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.00127

Gnomad4 AMR

AF:

0.000131

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

Alfa

AF:

0.0000453

Hom.:

Bravo

AF:

0.000332

ESP6500AA

AF:

0.000242

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

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

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jan 19, 2024

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 2683 of the DNAH1 protein (p.Arg2683Gln). This variant is present in population databases (rs77451372, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with DNAH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 573945). 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 DNAH1 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. -

Primary ciliary dyskinesia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

UNC Molecular Genetics Laboratory, University of North Carolina at Chapel Hill

Jul 02, 2020

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Feb 02, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.34

Cadd

Uncertain

Dann

Pathogenic

1.0

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Benign

0.59

LIST_S2

Benign

0.84

M_CAP

Benign

0.013

MetaRNN

Benign

0.031

MetaSVM

Benign

-0.76

MutationTaster

Benign

0.90

PrimateAI

Benign

0.31

PROVEAN

Uncertain

-2.6

REVEL

Benign

0.17

Sift

Uncertain

0.0080

Sift4G

Uncertain

0.055

Vest4

0.41

MVP

0.64

MPC

0.24

ClinPred

0.078

GERP RS

4.9

gMVP

0.46

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