NM_001005361.3:c.235+6A>G

Variant summary

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

The NM_001005361.3(DNM2):​c.235+6A>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 0.00171 in 1,613,852 control chromosomes in the GnomAD database, including 31 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 0.0070 ( 13 hom., cov: 31)
Exomes 𝑓: 0.0012 ( 18 hom. )

Consequence

DNM2
NM_001005361.3 splice_region, intron

Scores

2
Splicing: ADA: 0.000009650
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: -0.395

Publications

3 publications found
Variant links:
Genes affected
DNM2 (HGNC:2974): (dynamin 2) Dynamins represent one of the subfamilies of GTP-binding proteins. These proteins share considerable sequence similarity over the N-terminal portion of the molecule, which contains the GTPase domain. Dynamins are associated with microtubules. They have been implicated in cell processes such as endocytosis and cell motility, and in alterations of the membrane that accompany certain activities such as bone resorption by osteoclasts. Dynamins bind many proteins that bind actin and other cytoskeletal proteins. Dynamins can also self-assemble, a process that stimulates GTPase activity. Five alternatively spliced transcripts encoding different proteins have been described. Additional alternatively spliced transcripts may exist, but their full-length nature has not been determined. [provided by RefSeq, Jun 2010]
DNM2 Gene-Disease associations (from GenCC):
  • autosomal dominant centronuclear myopathy
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: ClinGen, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • Charcot-Marie-Tooth disease
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • Charcot-Marie-Tooth disease dominant intermediate B
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
  • autosomal dominant Charcot-Marie-Tooth disease type 2M
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • fetal akinesia-cerebral and retinal hemorrhage syndrome
    Inheritance: AR Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
  • hereditary spastic paraplegia
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

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=-0.92).
BP6
Variant 19-10759817-A-G is Benign according to our data. Variant chr19-10759817-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 158525.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 = 0.00701 (1066/152086) while in subpopulation AFR AF = 0.023 (955/41504). AF 95% confidence interval is 0.0218. There are 13 homozygotes in GnomAd4. There are 549 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 13 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNM2NM_001005361.3 linkc.235+6A>G splice_region_variant, intron_variant Intron 2 of 20 ENST00000389253.9 NP_001005361.1 P50570-4Q8N1K8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNM2ENST00000389253.9 linkc.235+6A>G splice_region_variant, intron_variant Intron 2 of 20 5 NM_001005361.3 ENSP00000373905.4 P50570-4

Frequencies

GnomAD3 genomes
AF:
0.00692
AC:
1052
AN:
151968
Hom.:
12
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0227
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00249
Gnomad ASJ
AF:
0.00404
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000397
Gnomad OTH
AF:
0.00431
GnomAD2 exomes
AF:
0.00273
AC:
687
AN:
251472
AF XY:
0.00258
show subpopulations
Gnomad AFR exome
AF:
0.0231
Gnomad AMR exome
AF:
0.00142
Gnomad ASJ exome
AF:
0.00367
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000563
Gnomad OTH exome
AF:
0.00228
GnomAD4 exome
AF:
0.00115
AC:
1688
AN:
1461766
Hom.:
18
Cov.:
31
AF XY:
0.00116
AC XY:
847
AN XY:
727194
show subpopulations
African (AFR)
AF:
0.0227
AC:
761
AN:
33476
American (AMR)
AF:
0.00152
AC:
68
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00367
AC:
96
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00407
AC:
351
AN:
86258
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53388
Middle Eastern (MID)
AF:
0.00659
AC:
38
AN:
5768
European-Non Finnish (NFE)
AF:
0.000193
AC:
215
AN:
1111940
Other (OTH)
AF:
0.00262
AC:
158
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
112
224
335
447
559
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
34
68
102
136
170
<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:
0.00701
AC:
1066
AN:
152086
Hom.:
13
Cov.:
31
AF XY:
0.00738
AC XY:
549
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.0230
AC:
955
AN:
41504
American (AMR)
AF:
0.00249
AC:
38
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00404
AC:
14
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.00415
AC:
20
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10562
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.000397
AC:
27
AN:
67974
Other (OTH)
AF:
0.00427
AC:
9
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
54
108
162
216
270
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00407
Hom.:
2
Bravo
AF:
0.00812
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.00104
EpiControl
AF:
0.00130

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:6
Feb 08, 2013
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 17, 2018
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. -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:3
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Mar 31, 2022
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 02, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease dominant intermediate B Benign:2
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal dominant centronuclear myopathy Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
2.2
DANN
Benign
0.43
PhyloP100
-0.40
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0000097
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

Other links and lift over

dbSNP: rs113192269; hg19: chr19-10870493; API