rs144250390

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001005361.3(DNM2):​c.190G>A​(p.Val64Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00046 in 1,614,102 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0022 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00027 ( 5 hom. )

Consequence

DNM2
NM_001005361.3 missense

Scores

8
7
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:7O:1

Conservation

PhyloP100: 6.17

Publications

4 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 -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.018065661).
BP6
Variant 19-10759766-G-A is Benign according to our data. Variant chr19-10759766-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 133978.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00223 (340/152234) while in subpopulation AFR AF = 0.00778 (323/41518). AF 95% confidence interval is 0.00708. There are 1 homozygotes in GnomAd4. There are 174 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 5 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNM2NM_001005361.3 linkc.190G>A p.Val64Ile missense_variant Exon 2 of 21 ENST00000389253.9 NP_001005361.1 P50570-4Q8N1K8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNM2ENST00000389253.9 linkc.190G>A p.Val64Ile missense_variant Exon 2 of 21 5 NM_001005361.3 ENSP00000373905.4 P50570-4

Frequencies

GnomAD3 genomes
AF:
0.00223
AC:
339
AN:
152116
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00778
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00239
GnomAD2 exomes
AF:
0.000660
AC:
166
AN:
251492
AF XY:
0.000493
show subpopulations
Gnomad AFR exome
AF:
0.00824
Gnomad AMR exome
AF:
0.000694
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000527
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000275
AC:
402
AN:
1461868
Hom.:
5
Cov.:
31
AF XY:
0.000243
AC XY:
177
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.00869
AC:
291
AN:
33480
American (AMR)
AF:
0.000760
AC:
34
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000306
AC:
34
AN:
1112010
Other (OTH)
AF:
0.000513
AC:
31
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
28
55
83
110
138
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00223
AC:
340
AN:
152234
Hom.:
1
Cov.:
31
AF XY:
0.00234
AC XY:
174
AN XY:
74416
show subpopulations
African (AFR)
AF:
0.00778
AC:
323
AN:
41518
American (AMR)
AF:
0.000523
AC:
8
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68020
Other (OTH)
AF:
0.00237
AC:
5
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
15
31
46
62
77
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000843
Hom.:
8
Bravo
AF:
0.00247
ESP6500AA
AF:
0.00726
AC:
32
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000741
AC:
90
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:7Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1Benign:3Other:1
Dec 16, 2014
Eurofins Ntd Llc (ga)
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

Dec 01, 2015
Center for Genetic Medicine Research, Children's National Medical Center
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Mar 02, 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 05, 2021
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease dominant intermediate B Benign:2
Jan 22, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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. -

Peripheral neuropathy Uncertain:1
Feb 08, 2013
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
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. -

Inborn genetic diseases Benign:1
Nov 11, 2019
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.62
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
.;.;.;D;.
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Uncertain
0.90
D;D;D;D;D
M_CAP
Uncertain
0.16
D
MetaRNN
Benign
0.018
T;T;T;T;T
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Pathogenic
3.4
M;M;M;M;M
PhyloP100
6.2
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-0.84
.;N;N;N;N
REVEL
Pathogenic
0.71
Sift
Uncertain
0.014
.;D;D;D;D
Sift4G
Uncertain
0.050
T;T;D;T;D
Polyphen
0.83, 0.97
.;P;.;D;.
Vest4
0.62
MVP
0.87
MPC
1.9
ClinPred
0.13
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.26
gMVP
0.51
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs144250390; hg19: chr19-10870442; API