Genetic Variant MTMR4:p.Ser980Asn (chr17-58495245-C-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_001378067.1(MTMR4):c.2939G>A(p.Ser980Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,876 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: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MTMR4
NM_001378067.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.15

Variant links:

Genes affected

MTMR4 (HGNC:7452): (myotubularin related protein 4) Enables protein phosphatase binding activity. Involved in regulation of phosphatidylinositol dephosphorylation. Located in endosome. [provided by Alliance of Genome Resources, Apr 2022]

MTMR4 links:

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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=0.079245746).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MTMR4	NM_001378067.1 link	c.2939G>A	p.Ser980Asn	missense_variant	Exon 15 of 18	ENST00000682306.1	NP_001364996.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MTMR4	ENST00000682306.1 link	c.2939G>A	p.Ser980Asn	missense_variant	Exon 15 of 18		NM_001378067.1	ENSP00000507664.1	A0A804HJV7
MTMR4	ENST00000323456.9 link	c.2897G>A	p.Ser966Asn	missense_variant	Exon 16 of 19	1		ENSP00000325285.5	Q9NYA4
MTMR4	ENST00000579925.5 link	c.2726G>A	p.Ser909Asn	missense_variant	Exon 15 of 18	5		ENSP00000464067.1	J3QR65

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251442

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135902

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 31, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2897G>A (p.S966N) alteration is located in exon 16 (coding exon 15) of the MTMR4 gene. This alteration results from a G to A substitution at nucleotide position 2897, causing the serine (S) at amino acid position 966 to be replaced by an asparagine (N). 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

0.076

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.25

T;T

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.25

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.54

T;T

M_CAP

Benign

0.029

MetaRNN

Benign

0.079

T;T

MetaSVM

Benign

-0.51

MutationAssessor

Benign

0.90

.;L

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.60

.;N

REVEL

Benign

0.20

Sift

Benign

0.21

.;T

Sift4G

Benign

0.14

T;T

Polyphen

0.0

.;B

Vest4

0.10

MutPred

0.15

.;Loss of glycosylation at S966 (P = 0.0741);

MVP

0.13

MPC

0.27

ClinPred

0.058

GERP RS

2.1

Varity_R

0.032

gMVP

0.25

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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