NM_001080463.2:c.7277G>T

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_001080463.2(DYNC2H1):c.7277G>T(p.Arg2426Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000125 in 1,606,152 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2426C) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

DYNC2H1
NM_001080463.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter P:2U:1

Conservation

PhyloP100: 9.86

Publications

6 publications found

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 Gene-Disease associations (from GenCC):

asphyxiating thoracic dystrophy 3
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics
Jeune syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
short rib-polydactyly syndrome, Majewski type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
short rib-polydactyly syndrome, Verma-Naumoff type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DYNC2H1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr11-103188632-C-T is described in CliVar as Likely_pathogenic. Clinvar id is 2574678.Status of the report is criteria_provided_single_submitter, 1 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.87

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYNC2H1	NM_001080463.2 link	c.7277G>T	p.Arg2426Leu	missense_variant	Exon 44 of 90	ENST00000650373.2	NP_001073932.1	Q8NCM8-2
DYNC2H1	NM_001377.3 link	c.7277G>T	p.Arg2426Leu	missense_variant	Exon 44 of 89	ENST00000375735.7	NP_001368.2	Q8NCM8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYNC2H1	ENST00000650373.2 link	c.7277G>T	p.Arg2426Leu	missense_variant	Exon 44 of 90		NM_001080463.2	ENSP00000497174.1		Q8NCM8-2
DYNC2H1	ENST00000375735.7 link	c.7277G>T	p.Arg2426Leu	missense_variant	Exon 44 of 89	1	NM_001377.3	ENSP00000364887.2		Q8NCM8-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151800

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000409

AC:

AN:

244460

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:

0.00000907

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000124

AC:

AN:

1454352

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

723130

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33338

American (AMR)

AF:

0.00

AC:

AN:

44336

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25952

East Asian (EAS)

AF:

0.00

AC:

AN:

39314

South Asian (SAS)

AF:

0.00

AC:

AN:

85022

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52978

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5704

European-Non Finnish (NFE)

AF:

0.0000162

AC:

AN:

1107716

Other (OTH)

AF:

0.00

AC:

AN:

59992

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.414

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

AF:

0.0000132

AC:

AN:

151800

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74104

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41336

American (AMR)

AF:

0.00

AC:

AN:

15198

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10552

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67918

Other (OTH)

AF:

0.00

AC:

AN:

2088

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

Alfa

AF:

0.00

Hom.:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000123

AC:

ExAC

AF:

0.00000829

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:2Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Jeune thoracic dystrophy

Pathogenic:2

University of Washington Center for Mendelian Genomics, University of Washington

Significance:Likely pathogenic

Review Status:no assertion criteria provided

Collection Method:research

- -

Jun 01, 2017

Dan Cohn Lab, University Of California Los Angeles

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:research

- -

not provided

Uncertain:1

Nov 09, 2020

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Identified in a prenatal proband with asphyxiating thoracic dystrophy in published literature (Zhang et al., 2018); Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 29068549, 33369054) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.070

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.40

T;T;.;.

Eigen

Pathogenic

0.84

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.96

.;D;.;D

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.87

D;D;D;D

MetaSVM

Benign

-0.69

MutationAssessor

Uncertain

2.8

M;M;M;M

PhyloP100

9.9

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-5.8

D;.;.;D

REVEL

Uncertain

0.50

Sift

Uncertain

0.0070

D;.;.;D

Sift4G

Uncertain

0.016

D;.;.;D

Polyphen

1.0

D;D;D;D

Vest4

0.90

MVP

0.71

MPC

0.23

ClinPred

0.98

GERP RS

5.8

Varity_R

0.65

gMVP

0.80

Mutation Taster

=2/98

disease causing (ClinVar)

(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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over