X-150732542-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PP3_StrongBS2

The ENST00000445323.7(MTMR1):ā€‹c.892G>Cā€‹(p.Val298Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000416 in 1,202,112 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes š‘“: 0.0000037 ( 0 hom. 2 hem. )

Consequence

MTMR1
ENST00000445323.7 missense, splice_region

Scores

12
4
1
Splicing: ADA: 0.9999
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0
Variant links:
Genes affected
MTMR1 (HGNC:7449): (myotubularin related protein 1) This gene encodes a member of the myotubularin related family of proteins. Members of this family contain the consensus sequence for the active site of protein tyrosine phosphatases. Alternatively spliced variants have been described but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.949
BS2
High Hemizygotes in GnomAdExome4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MTMR1NM_001306144.3 linkuse as main transcriptc.892G>C p.Val298Leu missense_variant, splice_region_variant 10/16 ENST00000445323.7 NP_001293073.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MTMR1ENST00000445323.7 linkuse as main transcriptc.892G>C p.Val298Leu missense_variant, splice_region_variant 10/161 NM_001306144.3 ENSP00000414178 A2

Frequencies

GnomAD3 genomes
AF:
0.00000894
AC:
1
AN:
111878
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34038
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000580
AC:
1
AN:
172447
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
57699
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000128
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000367
AC:
4
AN:
1090234
Hom.:
0
Cov.:
29
AF XY:
0.00000561
AC XY:
2
AN XY:
356544
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:
0.00000478
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000894
AC:
1
AN:
111878
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34038
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:
0.0000188
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 17, 2023The c.868G>C (p.V290L) alteration is located in exon 9 (coding exon 9) of the MTMR1 gene. This alteration results from a G to C substitution at nucleotide position 868, causing the valine (V) at amino acid position 290 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.71
BayesDel_addAF
Pathogenic
0.54
D
BayesDel_noAF
Pathogenic
0.54
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.93
D;.;D
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Pathogenic
0.70
D
MetaRNN
Pathogenic
0.95
D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
3.6
H;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-2.8
D;D;D
REVEL
Pathogenic
0.80
Sift
Uncertain
0.0020
D;D;D
Sift4G
Uncertain
0.0080
D;D;D
Polyphen
0.97
D;D;P
Vest4
0.69
MutPred
0.83
.;.;Loss of methylation at R295 (P = 0.1145);
MVP
0.99
ClinPred
0.97
D
GERP RS
5.9
Varity_R
0.94
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.89
SpliceAI score (max)
0.14
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: rs868993041; hg19: chrX-149901014; API