rs116750638

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016156.6(MTMR2):ā€‹c.1855T>Gā€‹(p.Ser619Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S619P) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

MTMR2
NM_016156.6 missense

Scores

4
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.28
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.11932927).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTMR2NM_016156.6 linkuse as main transcriptc.1855T>G p.Ser619Ala missense_variant 15/15 ENST00000346299.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTMR2ENST00000346299.10 linkuse as main transcriptc.1855T>G p.Ser619Ala missense_variant 15/151 NM_016156.6 P3Q13614-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152044
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1460984
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726790
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152044
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74286
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.023
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
18
DANN
Benign
0.73
DEOGEN2
Benign
0.32
T;.;.;.;T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.12
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.67
T;T;.;.;T
M_CAP
Benign
0.049
D
MetaRNN
Benign
0.12
T;T;T;T;T
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Benign
0.77
N;.;.;.;.
MutationTaster
Benign
0.96
D;D;D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.79
N;N;N;N;N
REVEL
Uncertain
0.29
Sift
Benign
0.99
T;T;T;T;T
Sift4G
Benign
0.83
T;T;T;T;.
Polyphen
0.0010
B;.;.;.;.
Vest4
0.032
MutPred
0.26
Loss of phosphorylation at S619 (P = 0.0034);.;.;.;.;
MVP
0.86
MPC
0.27
ClinPred
0.61
D
GERP RS
6.2
Varity_R
0.043
gMVP
0.30

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs116750638; hg19: chr11-95568531; API