Genetic Variant DNAH1:p.Val2734Leu (chr3-52383909-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_015512.5(DNAH1):c.8200G>C(p.Val2734Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,459,388 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V2734F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.82

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015512.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH1	NM_015512.5	MANE Select	c.8200G>C	p.Val2734Leu	missense	Exon 52 of 78	NP_056327.4

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH1	ENST00000420323.7	TSL:1 MANE Select	c.8200G>C	p.Val2734Leu	missense	Exon 52 of 78	ENSP00000401514.2
	DNAH1	ENST00000486752.5	TSL:2	n.8461G>C		non_coding_transcript_exon	Exon 52 of 77

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459388

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725588

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33434

American (AMR)

AF:

0.00

AC:

AN:

44434

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26074

East Asian (EAS)

AF:

0.00

AC:

AN:

39634

South Asian (SAS)

AF:

0.00

AC:

AN:

86058

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53354

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

9.01e-7

AC:

AN:

1110372

Other (OTH)

AF:

0.00

AC:

AN:

60266

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.74

BayesDel_addAF

Uncertain

0.029

BayesDel_noAF

Benign

-0.20

CADD

Uncertain

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

0.74

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.037

MetaRNN

Uncertain

0.70

MetaSVM

Uncertain

-0.059

PhyloP100

4.8

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.0

REVEL

Uncertain

0.34

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.0090

Vest4

0.71

MutPred

0.46

Gain of sheet (P = 0.1208)

MVP

0.58

MPC

0.55

ClinPred

0.98

GERP RS

4.2

gMVP

0.59

Mutation Taster

=76/24

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over