rs1555038664

Variant names:

• chr11-103120692-TTGTGGAAAGC-T
• rs1555038664
• NM_001080463.2:c.1141_1150delTGGAAAGCTG

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001377.3(DYNC2H1):​c.1141_1150delTGGAAAGCTG​(p.Trp381ArgfsTer16) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DYNC2H1 NM_001377.3 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.48

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]

ACMG classification

Verdict is Pathogenic. Variant got 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-103120692-TTGTGGAAAGC-T is Pathogenic according to our data. Variant chr11-103120692-TTGTGGAAAGC-T is described in ClinVar as [Pathogenic]. Clinvar id is 528900.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.1141_1150delTGGAAAGCTG	p.Trp381ArgfsTer16	frameshift_variant	Exon 8 of 90	ENST00000650373.2	NP_001073932.1
DYNC2H1	NM_001377.3	c.1141_1150delTGGAAAGCTG	p.Trp381ArgfsTer16	frameshift_variant	Exon 8 of 89	ENST00000375735.7	NP_001368.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYNC2H1	ENST00000650373.2	c.1141_1150delTGGAAAGCTG	p.Trp381ArgfsTer16	frameshift_variant	Exon 8 of 90		NM_001080463.2	ENSP00000497174.1
DYNC2H1	ENST00000375735.7	c.1141_1150delTGGAAAGCTG	p.Trp381ArgfsTer16	frameshift_variant	Exon 8 of 89	1	NM_001377.3	ENSP00000364887.2

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Jeune thoracic dystrophy Pathogenic:1

Oct 31, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change creates a premature translational stop signal (p.Trp381Argfs*16) in the DYNC2H1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in DYNC2H1 are known to be pathogenic (PMID: 23339108, 32753734). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with DYNC2H1-related conditions. ClinVar contains an entry for this variant (Variation ID: 528900). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1555038664; hg19: chr11-102991421;