rs1555053115

Variant names:

• chr11-103163089-G-A
• rs1555053115
• NM_001080463.2:c.4553G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Moderate PP5_Moderate

The NM_001080463.2(DYNC2H1):​c.4553G>A​(p.Cys1518Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DYNC2H1 NM_001080463.2 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:3
• Conservation: PhyloP100: 8.41
• Publications: 0 publications found

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

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.939
• PP5: Variant 11-103163089-G-A is Pathogenic according to our data. Variant chr11-103163089-G-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 446596.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYNC2H1	NM_001080463.2	c.4553G>A	p.Cys1518Tyr	missense_variant	Exon 30 of 90	ENST00000650373.2	NP_001073932.1
DYNC2H1	NM_001377.3	c.4553G>A	p.Cys1518Tyr	missense_variant	Exon 30 of 89	ENST00000375735.7	NP_001368.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYNC2H1	ENST00000650373.2	c.4553G>A	p.Cys1518Tyr	missense_variant	Exon 30 of 90		NM_001080463.2	ENSP00000497174.1
DYNC2H1	ENST00000375735.7	c.4553G>A	p.Cys1518Tyr	missense_variant	Exon 30 of 89	1	NM_001377.3	ENSP00000364887.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, single submitter

Submissions by phenotype

Jeune thoracic dystrophy Pathogenic:3

Jun 01, 2017

Dan Cohn Lab, University Of California Los Angeles

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: research

- -

-

University of Washington Center for Mendelian Genomics, University of Washington

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: research

- -

Nov 28, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This missense change has been observed in individual(s) with DYNC2H1-related conditions (PMID: 29068549). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 1518 of the DYNC2H1 protein (p.Cys1518Tyr). ClinVar contains an entry for this variant (Variation ID: 446596). 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. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.74
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.78	D;D;.;.
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.83	.;T;.;T
M_CAP	Benign	0.064	D
MetaRNN	Pathogenic	0.94	D;D;D;D
MetaSVM	Uncertain	-0.083	T
MutationAssessor	Uncertain	2.5	M;M;M;M
PhyloP100		8.4
PrimateAI	Uncertain	0.71	T
PROVEAN	Pathogenic	-8.3	D;.;.;D
REVEL	Uncertain	0.63
Sift	Pathogenic	0.0	D;.;.;D
Sift4G	Benign	0.082	T;.;.;T
Polyphen		0.99	D;D;D;D
Vest4		0.92
MutPred		0.77		Loss of catalytic residue at T1520 (P = 0.1218);Loss of catalytic residue at T1520 (P = 0.1218);Loss of catalytic residue at T1520 (P = 0.1218);Loss of catalytic residue at T1520 (P = 0.1218);
MVP		0.75
MPC		0.45
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.97
gMVP		0.76
Mutation Taster		=1/99	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1555053115; hg19: chr11-103033818;