rs587783861

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PP3_ModerateBP6_Very_Strong

The NM_000252.3(MTM1):​c.913G>A​(p.Glu305Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,096,782 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E305Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000082 ( 0 hom. 1 hem. )

Consequence

MTM1
NM_000252.3 missense

Scores

5
8
4

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 9.96

Publications

5 publications found
Variant links:
Genes affected
MTM1 (HGNC:7448): (myotubularin 1) This gene encodes a dual-specificity phosphatase that acts on both phosphotyrosine and phosphoserine. It is required for muscle cell differentiation and mutations in this gene have been identified as being responsible for X-linked myotubular myopathy. [provided by RefSeq, Jul 2008]
MTM1 Gene-Disease associations (from GenCC):
  • X-linked myotubular myopathy
    Inheritance: XL Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen, Myriad Women’s Health, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.905
BP6
Variant X-150649761-G-A is Benign according to our data. Variant chrX-150649761-G-A is described in ClinVar as Benign. ClinVar VariationId is 159008.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MTM1NM_000252.3 linkc.913G>A p.Glu305Lys missense_variant Exon 10 of 15 ENST00000370396.7 NP_000243.1 Q13496-1A0A024RC06

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MTM1ENST00000370396.7 linkc.913G>A p.Glu305Lys missense_variant Exon 10 of 15 1 NM_000252.3 ENSP00000359423.3 Q13496-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD2 exomes
AF:
0.0000274
AC:
5
AN:
182641
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000147
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000722
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
9
AN:
1096782
Hom.:
0
Cov.:
29
AF XY:
0.00000276
AC XY:
1
AN XY:
362258
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26365
American (AMR)
AF:
0.000114
AC:
4
AN:
35150
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19364
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30145
South Asian (SAS)
AF:
0.0000185
AC:
1
AN:
53966
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40524
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4124
European-Non Finnish (NFE)
AF:
0.00000476
AC:
4
AN:
841093
Other (OTH)
AF:
0.00
AC:
0
AN:
46051
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
1
1
2
2
3
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
Cov.:
23
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Benign:1
Feb 08, 2013
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Severe X-linked myotubular myopathy Benign:1
Oct 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Benign
-0.030
T
BayesDel_noAF
Uncertain
-0.030
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.90
D
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.90
D
MetaSVM
Uncertain
0.53
D
MutationAssessor
Benign
1.2
L
PhyloP100
10
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-3.9
D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0060
D
Sift4G
Benign
0.082
T
Polyphen
0.97
D
Vest4
0.86
MutPred
0.65
Gain of ubiquitination at E305 (P = 0.0247);
MVP
0.83
MPC
1.7
ClinPred
0.55
D
GERP RS
5.0
Varity_R
0.79
gMVP
0.78
Mutation Taster
=56/44
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs587783861; hg19: chrX-149818234; COSMIC: COSV60333908; COSMIC: COSV60333908; API