Genetic Variant DNAH9:p.Asp22GlufsTer38 (chr17-11598536-A-AGAACGCGGATGGGGAACCCGGCGCC) – ACMG Classification: Likely_pathogenic (8 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The NM_001372.4(DNAH9):c.41_65dupACGCGGATGGGGAACCCGGCGCCGA(p.Asp22GlufsTer38) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000549 in 1,347,134 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

DNAH9
NM_001372.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.576

Variant links:

Genes affected

DNAH9 (HGNC:2953): (dynein axonemal heavy chain 9) This gene encodes the heavy chain subunit of axonemal dynein, a large multi-subunit molecular motor. Axonemal dynein attaches to microtubules and hydrolyzes ATP to mediate the movement of cilia and flagella. The gene expresses at least two transcript variants; additional variants have been described, but their full length nature has not been determined. [provided by RefSeq, Jul 2008]

DNAH9 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 8 pathogenic variants in the truncated region.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 17-11598536-A-AGAACGCGGATGGGGAACCCGGCGCC is Pathogenic according to our data. Variant chr17-11598536-A-AGAACGCGGATGGGGAACCCGGCGCC is described in ClinVar as [Pathogenic]. Clinvar id is 3626282.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH9	NM_001372.4 link	c.41_65dupACGCGGATGGGGAACCCGGCGCCGA	p.Asp22GlufsTer38	frameshift_variant	Exon 1 of 69	ENST00000262442.9	NP_001363.2	Q9NYC9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DNAH9	ENST00000262442.9 link	c.41_65dupACGCGGATGGGGAACCCGGCGCCGA	p.Asp22GlufsTer38	frameshift_variant	Exon 1 of 69	1	NM_001372.4	ENSP00000262442.3	Q9NYC9-1
DNAH9	ENST00000579406.1 link	n.68_92dupACGCGGATGGGGAACCCGGCGCCGA		non_coding_transcript_exon_variant	Exon 1 of 8	1
DNAH9	ENST00000454412.6 link	c.41_65dupACGCGGATGGGGAACCCGGCGCCGA	p.Asp22GlufsTer38	frameshift_variant	Exon 1 of 68	5		ENSP00000414874.2	E7EP17
DNAH9	ENST00000579828.5 link	c.41_65dupACGCGGATGGGGAACCCGGCGCCGA	p.Asp22GlufsTer38	frameshift_variant	Exon 1 of 4	2		ENSP00000463782.1	J3QQK8

Frequencies

GnomAD3 genomes

AF:

0.000130

AC:

AN:

146306

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000219

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000681

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000212

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000108

Gnomad OTH

AF:

0.000497

GnomAD4 exome

AF:

0.0000458

AC:

AN:

1200714

Hom.:

Cov.:

AF XY:

0.0000409

AC XY:

AN XY:

586518

show subpopulations

Gnomad4 AFR exome

AF:

0.0000806

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000357

Gnomad4 SAS exome

AF:

0.0000514

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000472

Gnomad4 OTH exome

AF:

0.0000603

GnomAD4 genome

AF:

0.000130

AC:

AN:

146420

Hom.:

Cov.:

AF XY:

0.000126

AC XY:

AN XY:

71430

show subpopulations

Gnomad4 AFR

AF:

0.000219

Gnomad4 AMR

AF:

0.0000680

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000212

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000108

Gnomad4 OTH

AF:

0.000492

Asia WGS

AF:

0.000289

AC:

AN:

3476

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Nov 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change creates a premature translational stop signal (p.Asp22Glufs*38) in the DNAH9 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in DNAH9 are known to be pathogenic (PMID: 30471718). This variant is present in population databases (no rsID available, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with DNAH9-related conditions. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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