rs755305630

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_001080463.2(DYNC2H1):​c.327C>G​(p.Tyr109*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,565,692 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 Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

DYNC2H1
NM_001080463.2 stop_gained

Scores

2
4
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 0.989

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 18 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 11-103113668-C-G is Pathogenic according to our data. Variant chr11-103113668-C-G is described in ClinVar as Pathogenic. ClinVar VariationId is 446610.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DYNC2H1NM_001080463.2 linkc.327C>G p.Tyr109* stop_gained Exon 2 of 90 ENST00000650373.2 NP_001073932.1 Q8NCM8-2
DYNC2H1NM_001377.3 linkc.327C>G p.Tyr109* stop_gained Exon 2 of 89 ENST00000375735.7 NP_001368.2 Q8NCM8-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DYNC2H1ENST00000650373.2 linkc.327C>G p.Tyr109* stop_gained Exon 2 of 90 NM_001080463.2 ENSP00000497174.1 Q8NCM8-2
DYNC2H1ENST00000375735.7 linkc.327C>G p.Tyr109* stop_gained Exon 2 of 89 1 NM_001377.3 ENSP00000364887.2 Q8NCM8-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151760
Hom.:
0
Cov.:
32
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:
0.0000143
AC:
3
AN:
210024
AF XY:
0.0000174
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:
0.0000299
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
33
AN:
1413932
Hom.:
0
Cov.:
30
AF XY:
0.0000299
AC XY:
21
AN XY:
701406
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30476
American (AMR)
AF:
0.00
AC:
0
AN:
34434
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25050
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
74340
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52828
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5650
European-Non Finnish (NFE)
AF:
0.0000301
AC:
33
AN:
1095584
Other (OTH)
AF:
0.00
AC:
0
AN:
58398
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.448
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
2
AN:
151760
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74050
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41338
American (AMR)
AF:
0.00
AC:
0
AN:
15214
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5152
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4806
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10500
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67964
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000166
AC:
2

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Asphyxiating thoracic dystrophy 3 Pathogenic:2
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

- -

not provided Pathogenic:1
Apr 26, 2022
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); Reported in a neonatal case of short rib polydactyly type III; a second variant was also identified but the phase of these variants is unknown (Zhang W et al., 2018); This variant is associated with the following publications: (PMID: 29068549) -

Jeune thoracic dystrophy Pathogenic:1
Sep 15, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 446610). This premature translational stop signal has been observed in individual(s) with DYNC2H1-related conditions (PMID: 29068549). This variant is present in population databases (rs755305630, gnomAD 0.003%). This sequence change creates a premature translational stop signal (p.Tyr109*) 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, 33755199). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.53
D
BayesDel_noAF
Pathogenic
0.60
CADD
Pathogenic
34
DANN
Uncertain
0.99
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.88
D
PhyloP100
0.99
Vest4
0.89, 0.87
GERP RS
1.2
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs755305630; hg19: chr11-102984397; API