rs149476960

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_016156.6(MTMR2):​c.1741A>G​(p.Ile581Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000688 in 1,612,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.00011 ( 0 hom., cov: 32)
Exomes š‘“: 0.000064 ( 0 hom. )

Consequence

MTMR2
NM_016156.6 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 5.06

Publications

1 publications found
Variant links:
Genes affected
MTMR2 (HGNC:7450): (myotubularin related protein 2) This gene is a member of the myotubularin family of phosphoinositide lipid phosphatases. The encoded protein possesses phosphatase activity towards phosphatidylinositol-3-phosphate and phosphatidylinositol-3,5-bisphosphate. Mutations in this gene are a cause of Charcot-Marie-Tooth disease type 4B, an autosomal recessive demyelinating neuropathy. Alternatively spliced transcript variants encoding multiple isoforms have been found for this gene. [provided by RefSeq, Aug 2011]
MTMR2 Gene-Disease associations (from GenCC):
  • demyelinating hereditary motor and sensory neuropathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Charcot-Marie-Tooth disease type 4B1
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14703152).
BP6
Variant 11-95836177-T-C is Benign according to our data. Variant chr11-95836177-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 543419.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016156.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MTMR2
NM_016156.6
MANE Select
c.1741A>Gp.Ile581Val
missense
Exon 14 of 15NP_057240.3
MTMR2
NM_001440647.1
c.1657A>Gp.Ile553Val
missense
Exon 13 of 14NP_001427576.1
MTMR2
NM_001440648.1
c.1648A>Gp.Ile550Val
missense
Exon 13 of 14NP_001427577.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MTMR2
ENST00000346299.10
TSL:1 MANE Select
c.1741A>Gp.Ile581Val
missense
Exon 14 of 15ENSP00000345752.6Q13614-1
MTMR2
ENST00000352297.11
TSL:1
c.1525A>Gp.Ile509Val
missense
Exon 15 of 16ENSP00000343737.7Q13614-2
MTMR2
ENST00000393223.8
TSL:1
c.1525A>Gp.Ile509Val
missense
Exon 15 of 16ENSP00000376915.3Q13614-2

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
151786
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00318
Gnomad NFE
AF:
0.000221
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000518
AC:
13
AN:
251108
AF XY:
0.0000589
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:
0.0000462
Gnomad NFE exome
AF:
0.0000970
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000643
AC:
94
AN:
1460900
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
39
AN XY:
726752
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33440
American (AMR)
AF:
0.00
AC:
0
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26086
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.0000562
AC:
3
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000801
AC:
89
AN:
1111222
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60340
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
7
13
20
26
33
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
151904
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74278
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41490
American (AMR)
AF:
0.00
AC:
0
AN:
15214
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4800
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.000221
AC:
15
AN:
67850
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000126
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0000576
AC:
7

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Charcot-Marie-Tooth disease (1)
-
1
-
Charcot-Marie-Tooth disease type 4 (1)
-
1
-
Charcot-Marie-Tooth disease type 4B1 (1)
-
-
1
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
17
DANN
Benign
0.96
DEOGEN2
Benign
0.29
T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.044
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.61
T
MutationAssessor
Benign
-0.010
N
PhyloP100
5.1
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-0.13
N
REVEL
Benign
0.28
Sift
Benign
0.60
T
Sift4G
Benign
0.66
T
Polyphen
0.0010
B
Vest4
0.18
MVP
0.69
MPC
0.27
ClinPred
0.18
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.16
gMVP
0.33
Mutation Taster
=76/24
polymorphism

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: rs149476960; hg19: chr11-95569341; API