rs372164252

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The NM_016156.6(MTMR2):​c.54G>A​(p.Arg18=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000379 in 1,558,032 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000037 ( 1 hom. )

Consequence

MTMR2
NM_016156.6 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.235
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 Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 11-95923901-C-T is Benign according to our data. Variant chr11-95923901-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 414072.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.235 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTMR2NM_016156.6 linkuse as main transcriptc.54G>A p.Arg18= synonymous_variant 1/15 ENST00000346299.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTMR2ENST00000346299.10 linkuse as main transcriptc.54G>A p.Arg18= synonymous_variant 1/151 NM_016156.6 P3Q13614-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152268
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000570
AC:
9
AN:
157890
Hom.:
0
AF XY:
0.0000587
AC XY:
5
AN XY:
85108
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000117
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000855
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000659
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000370
AC:
52
AN:
1405646
Hom.:
1
Cov.:
30
AF XY:
0.0000317
AC XY:
22
AN XY:
694044
show subpopulations
Gnomad4 AFR exome
AF:
0.000156
Gnomad4 AMR exome
AF:
0.0000817
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000250
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000277
Gnomad4 OTH exome
AF:
0.000103
GnomAD4 genome
AF:
0.0000459
AC:
7
AN:
152386
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74522
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJul 11, 2019This 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. -
Charcot-Marie-Tooth disease type 4 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 21, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.42
CADD
Benign
12
DANN
Benign
0.87
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs372164252; hg19: chr11-95657065; API