rs370393988

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

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

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

spermatogenic failure 18
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
ciliary dyskinesia, primary, 37
Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, ClinGen
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
non-syndromic male infertility due to sperm motility disorder
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DNAH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH1	NM_015512.5 link	c.953T>G	p.Leu318Arg	missense_variant	Exon 7 of 78	ENST00000420323.7	NP_056327.4	Q9P2D7-4A0A140VJI6
DNAH1	XM_017006129.2 link	c.953T>G	p.Leu318Arg	missense_variant	Exon 8 of 80		XP_016861618.1
DNAH1	XM_017006130.2 link	c.953T>G	p.Leu318Arg	missense_variant	Exon 8 of 79		XP_016861619.1	Q9P2D7-4A0A140VJI6
DNAH1	XM_017006131.2 link	c.953T>G	p.Leu318Arg	missense_variant	Exon 8 of 79		XP_016861620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DNAH1	ENST00000420323.7 link	c.953T>G	p.Leu318Arg	missense_variant	Exon 7 of 78	1	NM_015512.5	ENSP00000401514.2	Q9P2D7-4
DNAH1	ENST00000486752.5 link	n.1214T>G		non_coding_transcript_exon_variant	Exon 7 of 77	2
DNAH1	ENST00000497875.1 link	n.1118T>G		non_coding_transcript_exon_variant	Exon 8 of 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

GnomAD2 exomes

AF:

0.0000699

AC:

AN:

243092

AF XY:

0.0000911

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 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

African (AFR)

AF:

0.0000598

AC:

AN:

33448

American (AMR)

AF:

0.00

AC:

AN:

44312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26040

East Asian (EAS)

AF:

0.00

AC:

AN:

39656

South Asian (SAS)

AF:

0.00

AC:

AN:

85330

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53250

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000366

AC:

407

AN:

1110750

Other (OTH)

AF:

0.0000995

AC:

AN:

60302

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

108

135

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74322

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41442

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

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

not specified

Uncertain:1

Sep 30, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

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

Uncertain:1

Sep 01, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

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

(source)

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

PhyloP100

6.8

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

Mutation Taster

=59/41

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over