rs755619139

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000346299.10(MTMR2):​c.35C>T​(p.Ser12Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000961 in 1,561,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S12T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000064 ( 0 hom. )

Consequence

MTMR2
ENST00000346299.10 missense

Scores

1
5
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.56

Publications

0 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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.20723549).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000346299.10. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MTMR2
NM_016156.6
MANE Select
c.35C>Tp.Ser12Phe
missense
Exon 1 of 15NP_057240.3
MTMR2
NM_001440647.1
c.35C>Tp.Ser12Phe
missense
Exon 1 of 14NP_001427576.1
MTMR2
NM_001440648.1
c.35C>Tp.Ser12Phe
missense
Exon 1 of 14NP_001427577.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MTMR2
ENST00000346299.10
TSL:1 MANE Select
c.35C>Tp.Ser12Phe
missense
Exon 1 of 15ENSP00000345752.6
MTMR2
ENST00000352297.11
TSL:1
c.-253C>T
5_prime_UTR
Exon 1 of 16ENSP00000343737.7
MTMR2
ENST00000393223.8
TSL:1
c.-274C>T
5_prime_UTR
Exon 1 of 16ENSP00000376915.3

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152260
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
163830
AF XY:
0.00
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:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000639
AC:
9
AN:
1408932
Hom.:
0
Cov.:
30
AF XY:
0.0000101
AC XY:
7
AN XY:
695922
show subpopulations
African (AFR)
AF:
0.0000311
AC:
1
AN:
32184
American (AMR)
AF:
0.00
AC:
0
AN:
37336
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25242
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36438
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80124
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49258
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5646
European-Non Finnish (NFE)
AF:
0.00000646
AC:
7
AN:
1084298
Other (OTH)
AF:
0.0000171
AC:
1
AN:
58406
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152260
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74388
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41468
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68050
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000997
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000893
AC:
1

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Charcot-Marie-Tooth disease type 4 (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.098
BayesDel_addAF
Uncertain
0.096
D
BayesDel_noAF
Benign
-0.10
CADD
Uncertain
24
DANN
Benign
0.95
DEOGEN2
Benign
0.35
T
Eigen
Benign
-0.19
Eigen_PC
Benign
-0.051
FATHMM_MKL
Benign
0.56
D
LIST_S2
Benign
0.77
T
M_CAP
Pathogenic
0.31
D
MetaRNN
Benign
0.21
T
MetaSVM
Uncertain
0.0070
D
MutationAssessor
Benign
0.90
L
PhyloP100
4.6
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.28
Sift
Uncertain
0.027
D
Sift4G
Uncertain
0.058
T
Polyphen
0.090
B
Vest4
0.24
MutPred
0.17
Loss of phosphorylation at S12 (P = 0.0143)
MVP
0.90
MPC
0.47
ClinPred
0.69
D
GERP RS
4.5
PromoterAI
0.021
Neutral
Varity_R
0.16
gMVP
0.45
Mutation Taster
=241/59
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: rs755619139; hg19: chr11-95657084; API