Genetic Variant MTMR6:p.Ser477Thr (chr13-25251902-A-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_004685.5(MTMR6):c.1429T>A(p.Ser477Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000995 in 1,607,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

MTMR6
NM_004685.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.84

Variant links:

Genes affected

MTMR6 (HGNC:7453): (myotubularin related protein 6) Enables phosphatidylinositol-3,5-bisphosphate phosphatase activity and phosphatidylinositol-3-phosphatase activity. Involved in phosphatidylinositol dephosphorylation. Located in cytoplasm and nuclear envelope. [provided by Alliance of Genome Resources, Apr 2022]

MTMR6 links:

Genome browser will be placed here

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=0.12656537).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MTMR6	NM_004685.5 link	c.1429T>A	p.Ser477Thr	missense_variant	Exon 12 of 14	ENST00000381801.6	NP_004676.3	Q9Y217-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MTMR6	ENST00000381801.6 link	c.1429T>A	p.Ser477Thr	missense_variant	Exon 12 of 14	1	NM_004685.5	ENSP00000371221.5		Q9Y217-1
MTMR6	ENST00000482345.2 link	c.1543T>A	p.Ser515Thr	missense_variant	Exon 13 of 15	5		ENSP00000516657.1		A0A9L9PXJ0

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000408

AC:

AN:

244812

Hom.:

AF XY:

0.0000378

AC XY:

AN XY:

132272

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000215

Gnomad ASJ exome

AF:

0.000101

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000179

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000687

AC:

AN:

1455480

Hom.:

Cov.:

AF XY:

0.00000691

AC XY:

AN XY:

723990

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000187

Gnomad4 ASJ exome

AF:

0.0000385

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1429T>A (p.S477T) alteration is located in exon 12 (coding exon 12) of the MTMR6 gene. This alteration results from a T to A substitution at nucleotide position 1429, causing the serine (S) at amino acid position 477 to be replaced by a threonine (T). 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

Benign

0.068

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Benign

0.74

DEOGEN2

Benign

0.10

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.56

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.13

MetaSVM

Uncertain

-0.049

MutationAssessor

Benign

1.4

PrimateAI

Benign

0.42

PROVEAN

Benign

0.27

REVEL

Benign

0.26

Sift

Benign

0.76

Sift4G

Benign

0.72

Polyphen

0.0020

Vest4

0.45

MutPred

0.27

Loss of sheet (P = 0.0457);

MVP

0.91

MPC

0.20

ClinPred

0.034

GERP RS

0.11

Varity_R

0.045

gMVP

0.38

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