rs137853030

Positions:

chr11-103125197-C-T

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PM5PP3_ModeratePP5_Very_Strong

The ENST00000375735.7(DYNC2H1):c.1759C>T(p.Arg587Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,613,334 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R587H) has been classified as Likely pathogenic.

Frequency

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

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DYNC2H1
ENST00000375735.7 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 4.63

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 14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr11-103125198-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2721525.Status of the report is criteria_provided_single_submitter, 1 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.92

PP5

Variant 11-103125197-C-T is Pathogenic according to our data. Variant chr11-103125197-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 6506.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.1759C>T	p.Arg587Cys	missense_variant	12/90	ENST00000650373.2	NP_001073932.1
DYNC2H1	NM_001377.3 linkuse as main transcript	c.1759C>T	p.Arg587Cys	missense_variant	12/89	ENST00000375735.7	NP_001368.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DYNC2H1	ENST00000650373.2 linkuse as main transcript	c.1759C>T	p.Arg587Cys	missense_variant	12/90		NM_001080463.2	ENSP00000497174	A1	Q8NCM8-2
DYNC2H1	ENST00000375735.7 linkuse as main transcript	c.1759C>T	p.Arg587Cys	missense_variant	12/89	1	NM_001377.3	ENSP00000364887	P3	Q8NCM8-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152100

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000403

AC:

AN:

248368

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134750

show subpopulations

Gnomad AFR exome

AF:

0.0000647

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461234

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726880

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:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152100

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74282

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Asphyxiating thoracic dystrophy 3

Pathogenic:5

Likely pathogenic, no assertion criteria provided	research	University of Washington Center for Mendelian Genomics, University of Washington	-	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Jul 26, 2019	- -
Pathogenic, no assertion criteria provided	research	Dan Cohn Lab, University Of California Los Angeles	Jun 01, 2017	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Apr 01, 2009	- -
Pathogenic, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jun 27, 2023	Variant summary: DYNC2H1 c.1759C>T (p.Arg587Cys) results in a non-conservative amino acid change located in the tail domain (IPR013594) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 248368 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.1759C>T has been reported in the literature in both compound heterozygous and homozygous individuals affected with Short-rib thoracic dysplasia (e.g., Merrill_2009, Baujat_2013), and the variant was found to segregate with disease in related individuals. These data indicate that the variant is very likely to be associated with disease. At least one publication describes experimental evidence evaluating an impact on protein function, reporting findings consistent with the variant causing a defect in cytoskeletal microtubule architecture (e.g., Merrill_2009). The following publications have been ascertained in the context of this evaluation (PMID: 23339108, 19361615). Three submitters have reported clinical-significance assessments for this variant to ClinVar after 2014, and classified the variant as pathogenic (n = 2) or likely pathogenic (n = 1). Based on the evidence outlined above, the variant was classified as pathogenic. -

Jeune thoracic dystrophy

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 28, 2023

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 587 of the DYNC2H1 protein (p.Arg587Cys). This variant is present in population databases (rs137853030, gnomAD 0.007%). This missense change has been observed in individuals with short-rib polydactyly syndrome/asphyxiating thoracic dystrophy (PMID: 19361615, 23339108). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 6506). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt DYNC2H1 protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Pathogenic

0.24

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.78

.;D;.;D;.;.

Eigen

Pathogenic

0.84

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Uncertain

0.90

LIST_S2

Pathogenic

0.98

D;.;D;D;.;D

M_CAP

Uncertain

0.27

MetaRNN

Pathogenic

0.92

D;D;D;D;D;D

MetaSVM

Uncertain

0.12

MutationAssessor

Uncertain

2.7

.;M;M;M;M;M

MutationTaster

Benign

1.0

A;A;A

PrimateAI

Uncertain

0.77

PROVEAN

Pathogenic

-6.7

.;D;D;.;.;D

REVEL

Uncertain

0.63

Sift

Pathogenic

0.0

.;D;D;.;.;D

Sift4G

Pathogenic

0.0010

.;D;D;.;.;D

Polyphen

1.0

.;D;D;D;D;D

Vest4

0.89, 0.98, 0.88

MutPred

0.80

Loss of MoRF binding (P = 0.1145);Loss of MoRF binding (P = 0.1145);Loss of MoRF binding (P = 0.1145);Loss of MoRF binding (P = 0.1145);Loss of MoRF binding (P = 0.1145);Loss of MoRF binding (P = 0.1145);

MVP

0.84

MPC

0.44

ClinPred

1.0

GERP RS

5.5

Varity_R

0.56

gMVP

0.78

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

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