Genetic Variant DNAH1:p.Asn2064Ile (chr3-52370162-A-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_015512.5(DNAH1):c.6191A>T(p.Asn2064Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,670 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. N2064S) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.06

Publications

3 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 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.835

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
DNAH1	NM_015512.5 link	c.6191A>T	p.Asn2064Ile	missense_variant	Exon 39 of 78	ENST00000420323.7	NP_056327.4
DNAH1	XM_017006129.2 link	c.6260A>T	p.Asn2087Ile	missense_variant	Exon 41 of 80		XP_016861618.1
DNAH1	XM_017006130.2 link	c.6191A>T	p.Asn2064Ile	missense_variant	Exon 40 of 79		XP_016861619.1
DNAH1	XM_017006131.2 link	c.6260A>T	p.Asn2087Ile	missense_variant	Exon 41 of 79		XP_016861620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAH1	ENST00000420323.7 link	c.6191A>T	p.Asn2064Ile	missense_variant	Exon 39 of 78	1	NM_015512.5	ENSP00000401514.2
DNAH1	ENST00000486752.5 link	n.6452A>T		non_coding_transcript_exon_variant	Exon 39 of 77	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249192

AF XY:

0.00

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:

0.00000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461670

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727116

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53394

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000899

AC:

AN:

1111850

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

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 v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.44

BayesDel_addAF

Benign

-0.049

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.82

M_CAP

Benign

0.021

MetaRNN

Pathogenic

0.83

MetaSVM

Benign

-0.93

PhyloP100

8.1

PrimateAI

Benign

0.44

PROVEAN

Pathogenic

-5.2

REVEL

Benign

0.23

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0050

Vest4

0.77

ClinPred

0.99

GERP RS

4.5

gMVP

0.46

Mutation Taster

=72/28

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over