rs199740667

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_015512.5(DNAH1):c.5740G>A(p.Glu1914Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00118 in 1,613,552 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0013 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.63

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
DNAH1	NM_015512.5 linkuse as main transcript	c.5740G>A	p.Glu1914Lys	missense_variant	36/78	ENST00000420323.7	NP_056327.4
DNAH1	XM_017006129.2 linkuse as main transcript	c.5740G>A	p.Glu1914Lys	missense_variant	37/80		XP_016861618.1
DNAH1	XM_017006130.2 linkuse as main transcript	c.5740G>A	p.Glu1914Lys	missense_variant	37/79		XP_016861619.1
DNAH1	XM_017006131.2 linkuse as main transcript	c.5740G>A	p.Glu1914Lys	missense_variant	37/79		XP_016861620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAH1	ENST00000420323.7 linkuse as main transcript	c.5740G>A	p.Glu1914Lys	missense_variant	36/78	1	NM_015512.5	ENSP00000401514	P1	Q9P2D7-4
DNAH1	ENST00000486752.5 linkuse as main transcript	n.6001G>A		non_coding_transcript_exon_variant	36/77	2

Frequencies

GnomAD3 genomes

AF:

0.000552

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000941

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000727

AC:

181

AN:

248854

Hom.:

AF XY:

0.000763

AC XY:

103

AN XY:

134986

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.0000870

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00153

Gnomad OTH exome

AF:

0.000663

GnomAD4 exome

AF:

0.00125

AC:

1827

AN:

1461354

Hom.:

Cov.:

AF XY:

0.00120

AC XY:

873

AN XY:

726934

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000750

Gnomad4 NFE exome

AF:

0.00159

Gnomad4 OTH exome

AF:

0.000762

GnomAD4 genome

AF:

0.000552

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.000457

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.000265

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000941

Gnomad4 OTH

AF:

0.000956

Alfa

AF:

0.00119

Hom.:

Bravo

AF:

0.000661

TwinsUK

AF:

0.00135

AC:

ALSPAC

AF:

0.00130

AC:

ESP6500AA

AF:

0.000238

AC:

ESP6500EA

AF:

0.00166

AC:

ExAC

AF:

0.000686

AC:

EpiCase

AF:

0.000654

EpiControl

AF:

0.00119

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

Labcorp Genetics (formerly Invitae), Labcorp

Jan 11, 2024

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 1914 of the DNAH1 protein (p.Glu1914Lys). This variant is present in population databases (rs199740667, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. 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: 567136). 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. -

Ciliary dyskinesia, primary, 37

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Johns Hopkins Genomics, Johns Hopkins University

Apr 07, 2023

This DNAH1 missense variant (rs199740667) is rare (<0.1%) in a large population dataset (gnomAD v2.1.1: 196/280214 total alleles; 0.07%; no homozygotes). It has been reported in ClinVar (Variation ID 567136), but not in the literature, to our knowledge. Two bioinformatic tools queried predict that this substitution would be damaging, and the glutamic acid residue at this position is evolutionarily conserved across many of the species assessed. The contribution of DNAH1 to primary ciliary dyskinesia has not been confirmed. We consider the clinical significance of c.5740G>A; p.Glu1914Lys in DNAH1 to be uncertain at this time. -

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

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Benign

-0.086

BayesDel_noAF

Uncertain

0.070

CADD

Uncertain

DANN

Pathogenic

1.0

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.98

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.49

MetaSVM

Uncertain

0.34

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.80

PROVEAN

Uncertain

-3.4

REVEL

Uncertain

0.64

Sift

Uncertain

0.012

Sift4G

Benign

0.17

Vest4

0.86

MVP

0.71

MPC

0.57

ClinPred

0.15

GERP RS

4.4

gMVP

0.67

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