rs1555057881

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_001080463.2(DYNC2H1):c.6271A>G(p.Asn2091Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,060 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 (★). Synonymous variant affecting the same amino acid position (i.e. N2091N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DYNC2H1
NM_001080463.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.50

Publications

0 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: Uncertain_significance. The variant received 5 ACMG points.

PM1

In a region_of_interest AAA 2 (size 223) in uniprot entity DYHC2_HUMAN there are 12 pathogenic changes around while only 1 benign (92%) in NM_001080463.2

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.839

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYNC2H1	NM_001080463.2 link	c.6271A>G	p.Asn2091Asp	missense_variant	Exon 39 of 90	ENST00000650373.2	NP_001073932.1	Q8NCM8-2
DYNC2H1	NM_001377.3 link	c.6271A>G	p.Asn2091Asp	missense_variant	Exon 39 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.6271A>G	p.Asn2091Asp	missense_variant	Exon 39 of 90		NM_001080463.2	ENSP00000497174.1		Q8NCM8-2
DYNC2H1	ENST00000375735.7 link	c.6271A>G	p.Asn2091Asp	missense_variant	Exon 39 of 89	1	NM_001377.3	ENSP00000364887.2		Q8NCM8-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461060

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726812

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26112

East Asian (EAS)

AF:

0.00

AC:

AN:

39652

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53386

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111430

Other (OTH)

AF:

0.00

AC:

AN:

60332

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

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:2Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Asphyxiating thoracic dystrophy 3

Pathogenic:2Uncertain:1

Feb 11, 2022

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The DYNC2H1 c.6271A>G; p.Asn2091Asp variant (rs1555057881) is reported in the literature in a patient with short rib-polydactyly syndrome type 3 (SRPS type III) who also carried an additional pathogenic DYNC2H1 variant (Zhang 2018). The p.Asn2091Asp variant is also reported in ClinVar (Variation ID: 446574). It is absent from the Genome Aggregation Database, indicating it is not a common polymorphism. The asparagine at codon 2091 is highly conserved, and computational analyses predict that this variant is deleterious (REVEL: 0.773). However, due to limited information, the clinical significance of this variant is uncertain at this time. References: Zhang W et al. Expanding the genetic architecture and phenotypic spectrum in the skeletal ciliopathies. Hum Mutat. 2018 Jan;39(1):152-166. PMID: 29068549. -

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

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.080

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.72

D;D;.;.

Eigen

Pathogenic

0.79

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

.;D;.;D

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.84

D;D;D;D

MetaSVM

Uncertain

0.75

MutationAssessor

Benign

1.9

L;L;L;L

PhyloP100

7.5

PrimateAI

Uncertain

0.70

PROVEAN

Pathogenic

-4.8

D;.;.;D

REVEL

Pathogenic

0.77

Sift

Uncertain

0.0090

D;.;.;D

Sift4G

Pathogenic

0.0

D;.;.;D

Polyphen

0.99

D;D;D;D

Vest4

0.89

MutPred

0.66

Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);

MVP

0.80

MPC

0.38

ClinPred

0.99

GERP RS

5.3

Varity_R

0.88

gMVP

0.75

Mutation Taster

=1/99

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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rs1555057881

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