3-52331229-T-G

Position:

chr3-52331229-T-G

Variant summary

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

The NM_015512.5(DNAH1):c.953T>G(p.Leu318Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000265 in 1,611,014 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00028 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 6.81

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
DNAH1	NM_015512.5 linkuse as main transcript	c.953T>G	p.Leu318Arg	missense_variant	7/78	ENST00000420323.7
DNAH1	XM_017006129.2 linkuse as main transcript	c.953T>G	p.Leu318Arg	missense_variant	8/80
DNAH1	XM_017006130.2 linkuse as main transcript	c.953T>G	p.Leu318Arg	missense_variant	8/79
DNAH1	XM_017006131.2 linkuse as main transcript	c.953T>G	p.Leu318Arg	missense_variant	8/79

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAH1	ENST00000420323.7 linkuse as main transcript	c.953T>G	p.Leu318Arg	missense_variant	7/78	1	NM_015512.5	P1	Q9P2D7-4
DNAH1	ENST00000486752.5 linkuse as main transcript	n.1214T>G		non_coding_transcript_exon_variant	7/77	2
DNAH1	ENST00000497875.1 linkuse as main transcript	n.1118T>G		non_coding_transcript_exon_variant	8/21	2

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152160

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:

0.000162

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000699

AC:

AN:

243092

Hom.:

AF XY:

0.0000911

AC XY:

AN XY:

131746

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000145

Gnomad OTH exome

AF:

0.000169

GnomAD4 exome

AF:

0.000284

AC:

415

AN:

1458854

Hom.:

Cov.:

AF XY:

0.000273

AC XY:

198

AN XY:

725250

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000366

Gnomad4 OTH exome

AF:

0.0000995

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74322

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:

0.000162

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000579

Hom.:

Bravo

AF:

0.0000680

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000357

AC:

ExAC

AF:

0.0000578

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

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

Sep 01, 2021

This sequence change replaces leucine with arginine at codon 318 of the DNAH1 protein (p.Leu318Arg). The leucine residue is highly conserved and there is a moderate physicochemical difference between leucine and arginine. This variant is present in population databases (rs370393988, ExAC 0.02%). 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: 544617). 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: "Benign"; 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. -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 30, 2021

The c.953T>G (p.L318R) alteration is located in exon 7 (coding exon 6) of the DNAH1 gene. This alteration results from a T to G substitution at nucleotide position 953, causing the leucine (L) at amino acid position 318 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.20

CADD

Uncertain

DANN

Uncertain

0.98

Eigen

Benign

0.13

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.84

M_CAP

Benign

0.025

MetaRNN

Uncertain

0.59

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-1.5

REVEL

Benign

0.22

Sift

Benign

0.53

Sift4G

Benign

0.56

Vest4

0.85

MVP

0.47

MPC

0.22

ClinPred

0.19

GERP RS

5.4

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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