rs368802969

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001080463.2(DYNC2H1):c.3097-4A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000815 in 1,529,770 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0044 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00042 ( 5 hom. )

Consequence

DYNC2H1
NM_001080463.2 splice_region, intron

Scores

Splicing: ADA: 0.0001846

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts P:2B:7

Conservation

PhyloP100: -2.01

Publications

2 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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.85).

BP6

Variant 11-103153299-A-G is Benign according to our data. Variant chr11-103153299-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 195661.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00439 (668/152250) while in subpopulation AFR AF = 0.0153 (637/41560). AF 95% confidence interval is 0.0143. There are 2 homozygotes in GnomAd4. There are 320 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYNC2H1	NM_001080463.2 link	c.3097-4A>G		splice_region_variant, intron_variant	Intron 21 of 89	ENST00000650373.2	NP_001073932.1	Q8NCM8-2
DYNC2H1	NM_001377.3 link	c.3097-4A>G		splice_region_variant, intron_variant	Intron 21 of 88	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.3097-4A>G		splice_region_variant, intron_variant	Intron 21 of 89		NM_001080463.2	ENSP00000497174.1		Q8NCM8-2
DYNC2H1	ENST00000375735.7 link	c.3097-4A>G		splice_region_variant, intron_variant	Intron 21 of 88	1	NM_001377.3	ENSP00000364887.2		Q8NCM8-1

Frequencies

GnomAD3 genomes

AF:

0.00437

AC:

665

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0153

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00430

GnomAD2 exomes

AF:

0.000914

AC:

125

AN:

136706

AF XY:

0.000794

show subpopulations

Gnomad AFR exome

AF:

0.0144

Gnomad AMR exome

AF:

0.000574

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000539

Gnomad OTH exome

AF:

0.000506

GnomAD4 exome

AF:

0.000420

AC:

578

AN:

1377520

Hom.:

Cov.:

AF XY:

0.000358

AC XY:

243

AN XY:

678416

show subpopulations

African (AFR)

AF:

0.0159

AC:

478

AN:

30138

American (AMR)

AF:

0.000707

AC:

AN:

29694

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24544

East Asian (EAS)

AF:

0.00

AC:

AN:

35292

South Asian (SAS)

AF:

0.0000137

AC:

AN:

72904

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49094

Middle Eastern (MID)

AF:

0.000181

AC:

AN:

5518

European-Non Finnish (NFE)

AF:

0.0000205

AC:

AN:

1073100

Other (OTH)

AF:

0.000961

AC:

AN:

57236

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

105

131

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00439

AC:

668

AN:

152250

Hom.:

Cov.:

AF XY:

0.00430

AC XY:

320

AN XY:

74450

show subpopulations

African (AFR)

AF:

0.0153

AC:

637

AN:

41560

American (AMR)

AF:

0.00105

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

67996

Other (OTH)

AF:

0.00425

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

101

135

169

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.00147

Hom.:

Bravo

AF:

0.00541

ClinVar

Significance: Benign/Likely benign

Submissions summary: Pathogenic:2Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Jeune thoracic dystrophy

Pathogenic:2Benign:1

University of Washington Center for Mendelian Genomics, University of Washington

Significance:Likely pathogenic

Review Status:no assertion criteria provided

Collection Method:research

- -

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 01, 2017

Dan Cohn Lab, University Of California Los Angeles

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:research

- -

not specified

Benign:3

Feb 15, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: DYNC2H1 c.3097-4A>G alters a nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.00091 in 136706 control chromosomes, predominantly at a frequency of 0.014 within the African or African-American subpopulation in the gnomAD database, including one homozygote. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 6 fold of the estimated maximal expected allele frequency for a pathogenic variant in DYNC2H1 causing Short-rib thoracic dysplasia phenotype (0.0025), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.3097-4A>G in individuals affected with Short-rib thoracic dysplasia and no experimental evidence demonstrating its impact on protein function have been reported. Five ClinVar submitters (evaluation after 2014) cite this variant as benign (n=4) and pathogenic (n=1). Based on the evidence outlined above, the variant was classified as benign. -

Mar 29, 2017

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Feb 10, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Jun 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DYNC2H1: BP4 -

Asphyxiating thoracic dystrophy 3

Benign:1

Apr 24, 2020

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.85

CADD

Benign

0.36

(source)

DANN

Benign

0.58

PhyloP100

-2.0

Mutation Taster

=96/4

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00018

dbscSNV1_RF

Benign

0.0

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over