7-158941986-AG-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PVS1

The NM_018051.5(DYNC2I1):c.2841delG(p.Gln947HisfsTer89) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000868 in 1,613,272 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

DYNC2I1
NM_018051.5 frameshift

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 3.47

Publications

0 publications found

Variant links:

Genes affected

DYNC2I1 (HGNC:21862): (dynein 2 intermediate chain 1) This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD) and may facilitate the formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes including cell cycle progression, signal transduction, apoptosis, and gene regulation. The encoded protein contains four WD repeats and may play a role in the formation of cilia. Mutations in this gene have been associated with short-rib polydactyly and Jeune syndromes. [provided by RefSeq, Mar 2014]

DYNC2I1 Gene-Disease associations (from GenCC):

short-rib thoracic dysplasia 8 with or without polydactyly
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), G2P
Jeune syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
short rib-polydactyly syndrome, Verma-Naumoff type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DYNC2I1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018051.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DYNC2I1	NM_018051.5	MANE Select	c.2841delG	p.Gln947HisfsTer89	frameshift	Exon 24 of 25	NP_060521.4
DYNC2I1	NM_001350914.2		c.2703delG	p.Gln901HisfsTer89	frameshift	Exon 24 of 25	NP_001337843.1
DYNC2I1	NM_001350915.2		c.2268delG	p.Gln756HisfsTer89	frameshift	Exon 23 of 24	NP_001337844.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DYNC2I1	ENST00000407559.8	TSL:1 MANE Select	c.2841delG	p.Gln947HisfsTer89	frameshift	Exon 24 of 25	ENSP00000384290.3
DYNC2I1	ENST00000444851.5	TSL:1	n.*430delG		non_coding_transcript_exon	Exon 19 of 20	ENSP00000392608.1
DYNC2I1	ENST00000444851.5	TSL:1	n.*430delG		3_prime_UTR	Exon 19 of 20	ENSP00000392608.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152264

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000404

AC:

AN:

247758

AF XY:

0.00000742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000890

AC:

AN:

1461008

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726822

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.000291

AC:

AN:

44654

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86220

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52984

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111746

Other (OTH)

AF:

0.00

AC:

AN:

60360

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

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:

0.00000657

AC:

AN:

152264

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74394

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41474

American (AMR)

AF:

0.0000654

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68048

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000453

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:2Uncertain:1

Revision: criteria provided, single submitter

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

Short-rib thoracic dysplasia 8 with or without polydactyly

Uncertain:1

Jun 13, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Gln947Hisfs*89) in the WDR60 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 120 amino acid(s) of the WDR60 protein. This variant is present in population databases (rs748645101, gnomAD 0.03%). This premature translational stop signal has been observed in individual(s) with short-rib polydactyly syndrome (PMID: 29068549). ClinVar contains an entry for this variant (Variation ID: 446628). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

3.5

Mutation Taster

=8/192

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over