Variant 5-163513564-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_013283.5(MAT2B):c.268A>G(p.Ile90Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000831 in 1,444,796 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000083 ( 0 hom. )

Consequence

MAT2B
NM_013283.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.20

Variant links:

Genes affected

MAT2B (HGNC:6905): (methionine adenosyltransferase 2 non-catalytic beta subunit) The protein encoded by this gene belongs to the methionine adenosyltransferase (MAT) family. MAT catalyzes the biosynthesis of S-adenosylmethionine from methionine and ATP. This protein is the regulatory beta subunit of MAT. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2012]

MAT2B 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=0.19765115).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MAT2B	NM_013283.5 linkuse as main transcript	c.268A>G	p.Ile90Val	missense_variant	3/7	ENST00000321757.11
MAT2B	NM_182796.2 linkuse as main transcript	c.235A>G	p.Ile79Val	missense_variant	3/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAT2B	ENST00000321757.11 linkuse as main transcript	c.268A>G	p.Ile90Val	missense_variant	3/7	1	NM_013283.5	P1	Q9NZL9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250768

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135598

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000656

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000831

AC:

AN:

1444796

Hom.:

Cov.:

AF XY:

0.00000972

AC XY:

AN XY:

719962

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000506

Gnomad4 SAS exome

AF:

0.0000233

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000547

Gnomad4 OTH exome

AF:

0.0000335

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

May 03, 2023

The c.268A>G (p.I90V) alteration is located in exon 3 (coding exon 3) of the MAT2B gene. This alteration results from a A to G substitution at nucleotide position 268, causing the isoleucine (I) at amino acid position 90 to be replaced by a valine (V). 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

0.12

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.44

Cadd

Benign

Dann

Uncertain

0.98

Eigen

Benign

-0.33

Eigen_PC

Benign

-0.16

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.87

D;D;D;D

M_CAP

Benign

0.0087

MetaRNN

Benign

0.20

T;T;T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.67

N;N;N;N

REVEL

Benign

0.048

Sift

Benign

0.16

T;T;T;T

Sift4G

Benign

0.32

T;T;T;T

Polyphen

0.017

B;B;.;P

Vest4

0.35

MutPred

0.57

.;Loss of catalytic residue at A94 (P = 0.1691);.;Loss of catalytic residue at A94 (P = 0.1691);

MVP

0.39

MPC

0.31

ClinPred

0.31

GERP RS

2.9

Varity_R

0.13

gMVP

0.56

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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