Genetic Variant MTMR1:p.Asp281Tyr (chrX-150731569-G-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_001306144.3(MTMR1):c.841G>T(p.Asp281Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000357 in 1,205,896 control chromosomes in the GnomAD database, including 1 homozygotes. There are 20 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000035 ( 1 hom. 20 hem. )

Consequence

MTMR1
NM_001306144.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.92

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]

MTMR1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.758

BS2

High Hemizygotes in GnomAdExome4 at 20 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MTMR1	NM_001306144.3 link	c.841G>T	p.Asp281Tyr	missense_variant	Exon 9 of 16	ENST00000445323.7	NP_001293073.1	F8WA39

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MTMR1	ENST00000445323.7 link	c.841G>T	p.Asp281Tyr	missense_variant	Exon 9 of 16	1	NM_001306144.3	ENSP00000414178.2		F8WA39

Frequencies

GnomAD3 genomes

AF:

0.0000446

AC:

AN:

112047

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34189

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:

0.0000939

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000611

AC:

AN:

180080

Hom.:

AF XY:

0.0000928

AC XY:

AN XY:

64662

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:

0.000217

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000865

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000347

AC:

AN:

1093849

Hom.:

Cov.:

AF XY:

0.0000556

AC XY:

AN XY:

359605

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:

0.000301

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000238

Gnomad4 OTH exome

AF:

0.0000218

GnomAD4 genome

AF:

0.0000446

AC:

AN:

112047

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34189

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:

0.0000939

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.817G>T (p.D273Y) alteration is located in exon 8 (coding exon 8) of the MTMR1 gene. This alteration results from a G to T substitution at nucleotide position 817, causing the aspartic acid (D) at amino acid position 273 to be replaced by a tyrosine (Y). 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

Uncertain

0.39

BayesDel_addAF

Pathogenic

0.50

BayesDel_noAF

Pathogenic

0.77

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.98

D;.;D

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.97

D;D;D

M_CAP

Pathogenic

0.76

MetaRNN

Pathogenic

0.76

D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.3

H;.;.

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-8.1

D;D;D

REVEL

Pathogenic

0.92

Sift

Pathogenic

0.0

D;D;D

Sift4G

Uncertain

0.0050

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.27

MutPred

0.74

.;.;Loss of disorder (P = 0.0149);

MVP

1.0

ClinPred

0.98

GERP RS

5.4

Varity_R

0.98

gMVP

0.91

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over