rs864622111

Positions:

chr11-103243691-A-G

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1_ModeratePM2PP5_Very_Strong

The ENST00000375735.7(DYNC2H1):c.9820-2A>G variant causes a splice acceptor change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000126 in 1,591,416 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

DYNC2H1
ENST00000375735.7 splice_acceptor

Scores

Splicing: ADA: 1.000

Clinical Significance

Likely pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: 8.99

Variant links:

Genes affected

DYNC2H1 (HGNC:2962): (dynein cytoplasmic 2 heavy chain 1) This gene encodes a large cytoplasmic dynein protein that is involved in retrograde transport in the cilium and has a role in intraflagellar transport, a process required for ciliary/flagellar assembly. Mutations in this gene cause a heterogeneous spectrum of conditions related to altered primary cilium function and often involve polydactyly, abnormal skeletogenesis, and polycystic kidneys. Alternative splicing results in multiple transcript variants encoding distinct proteins. [provided by RefSeq, Jan 2010]

DYNC2H1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.0075827916 fraction of the gene. Cryptic splice site detected, with MaxEntScore 7.6, offset of 25, new splice context is: agtgtgcccatttcttatAGatc. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 11-103243691-A-G is Pathogenic according to our data. Variant chr11-103243691-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 219478.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DYNC2H1	NM_001080463.2 linkuse as main transcript	c.9841-2A>G		splice_acceptor_variant		ENST00000650373.2	NP_001073932.1
DYNC2H1	NM_001377.3 linkuse as main transcript	c.9820-2A>G		splice_acceptor_variant		ENST00000375735.7	NP_001368.2

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Protein	Appris	UniProt
DYNC2H1	ENST00000375735.7 linkuse as main transcript	c.9820-2A>G	splice_acceptor_variant	1	NM_001377.3	ENSP00000364887	P3	Q8NCM8-1
DYNC2H1	ENST00000650373.2 linkuse as main transcript	c.9841-2A>G	splice_acceptor_variant		NM_001080463.2	ENSP00000497174	A1	Q8NCM8-2
DYNC2H1	ENST00000334267.11 linkuse as main transcript	c.2205+109272A>G	intron_variant	1		ENSP00000334021		Q8NCM8-3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151988

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.95e-7

AC:

AN:

1439428

Hom.:

Cov.:

AF XY:

0.00000140

AC XY:

AN XY:

714698

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000191

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151988

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74212

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Sep 09, 2016

A novel c.9841-2 A>G likely pathogenic variant was identified in the DYNC2H1 gene. It has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The c.9841-2 A>G splice site variant destroys the canonical splice acceptor site in intron 64. It is predicted to cause abnormal gene splicing, either leading to an abnormal message that is subject to nonsense-mediated mRNA decay, or to an abnormal protein product if the message is used for protein translation. The c.9841-2 A>G variant was not observed in approximately 5800 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. This substitution occurs at a position that is conserved across species. Therefore, this variant is likely pathogenic. -

Jeune thoracic dystrophy

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 09, 2015

This sequence change affects an acceptor splice site in intron 64. It is expected to disrupt mRNA splicing and likely results in an absent or disrupted protein product. While this particular variant has not been reported in the literature, truncating variants in DYNC2H1 are known to be pathogenic (PMID: 22499340, 23339108). For these reasons, this variant has been classified as Likely Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.34

BayesDel_noAF

Pathogenic

0.24

CADD

Pathogenic

DANN

Uncertain

0.99

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

0.94

FATHMM_MKL

Pathogenic

0.99

MutationTaster

Benign

1.0

D;D;D

GERP RS

5.7

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.93

SpliceAI score (max)

0.96

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.35

Position offset: 27

DS_AL_spliceai

0.96

Position offset: 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