22-30007290-A-G

Position:

chr22-30007290-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_021090.4(MTMR3):c.848A>G(p.Asn283Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000062 in 1,614,146 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

MTMR3
NM_021090.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.96

Variant links:

Genes affected

MTMR3 (HGNC:7451): (myotubularin related protein 3) This gene encodes a member of the myotubularin dual specificity protein phosphatase gene family. The encoded protein is structurally similar to myotubularin but in addition contains a FYVE domain and an N-terminal PH-GRAM domain. The protein can self-associate and also form heteromers with another myotubularin related protein. The protein binds to phosphoinositide lipids through the PH-GRAM domain, and can hydrolyze phosphatidylinositol(3)-phosphate and phosphatidylinositol(3,5)-biphosphate in vitro. The encoded protein has been observed to have a perinuclear, possibly membrane-bound, distribution in cells, but it has also been found free in the cytoplasm. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

MTMR3 links:

MTMR3 (HGNC:):

MTMR3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05456963).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MTMR3	NM_021090.4 linkuse as main transcript	c.848A>G	p.Asn283Ser	missense_variant	10/20	ENST00000401950.7	NP_066576.1	Q13615-1
MTMR3	NM_153050.3 linkuse as main transcript	c.848A>G	p.Asn283Ser	missense_variant	10/20		NP_694690.1	Q13615-2
MTMR3	NM_153051.3 linkuse as main transcript	c.848A>G	p.Asn283Ser	missense_variant	10/19		NP_694691.1	Q13615-3A0A024R1I2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MTMR3	ENST00000401950.7 linkuse as main transcript	c.848A>G	p.Asn283Ser	missense_variant	10/20	1	NM_021090.4	ENSP00000384651.3		Q13615-1

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000519

AC:

AN:

250322

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135450

show subpopulations

Gnomad AFR exome

AF:

0.000309

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000996

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000354

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000520

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.0000660

AC XY:

AN XY:

727210

show subpopulations

Gnomad4 AFR exome

AF:

0.000329

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000549

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000158

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.000409

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:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000632

Hom.:

Bravo

AF:

0.000159

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000577

AC:

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 submitter

clinical testing

Ambry Genetics

Apr 08, 2024

The c.848A>G (p.N283S) alteration is located in exon 10 (coding exon 8) of the MTMR3 gene. This alteration results from a A to G substitution at nucleotide position 848, causing the asparagine (N) at amino acid position 283 to be replaced by a serine (S). 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

0.057

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Uncertain

0.71

D;.;D;.;.

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.51

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.83

T;T;T;T;.

M_CAP

Benign

0.0049

MetaRNN

Benign

0.055

T;T;T;T;T

MetaSVM

Uncertain

-0.047

MutationAssessor

Benign

1.1

L;L;.;L;L

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.6

N;N;N;N;N

REVEL

Benign

0.27

Sift

Benign

0.14

T;T;T;T;T

Sift4G

Benign

0.32

T;T;T;T;T

Polyphen

0.0

B;B;.;B;B

Vest4

0.094

MVP

0.65

MPC

0.74

ClinPred

0.011

GERP RS

1.2

Varity_R

0.075

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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