Genetic Variant MAT2A:c.952-49A>C (chr2-85542852-A-C) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_005911.6(MAT2A):c.952-49A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000107 in 1,594,570 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

MAT2A
NM_005911.6 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.987

Publications

28 publications found

Variant links:

Genes affected

MAT2A (HGNC:6904): (methionine adenosyltransferase 2A) The protein encoded by this gene catalyzes the production of S-adenosylmethionine (AdoMet) from methionine and ATP. AdoMet is the key methyl donor in cellular processes. [provided by RefSeq, Jun 2011]

MAT2A Gene-Disease associations (from GenCC):

familial thoracic aortic aneurysm and aortic dissection
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

MAT2A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BS2

High AC in GnomAdExome4 at 16 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005911.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAT2A	NM_005911.6	MANE Select	c.952-49A>C		intron	N/A	NP_005902.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
MAT2A	ENST00000306434.8	TSL:1 MANE Select	c.952-49A>C	intron	N/A	ENSP00000303147.3
MAT2A	ENST00000409017.1	TSL:1	c.763-49A>C	intron	N/A	ENSP00000386353.1
MAT2A	ENST00000481412.5	TSL:1	n.1121-49A>C	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152028

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000293

AC:

AN:

239198

AF XY:

0.0000232

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000175

GnomAD4 exome

AF:

0.0000111

AC:

AN:

1442542

Hom.:

Cov.:

AF XY:

0.0000112

AC XY:

AN XY:

716870

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32864

American (AMR)

AF:

0.0000234

AC:

AN:

42750

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25048

East Asian (EAS)

AF:

0.00

AC:

AN:

39546

South Asian (SAS)

AF:

0.000119

AC:

AN:

84344

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51870

Middle Eastern (MID)

AF:

0.000188

AC:

AN:

5310

European-Non Finnish (NFE)

AF:

0.00000272

AC:

AN:

1101258

Other (OTH)

AF:

0.0000168

AC:

AN:

59552

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.531

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152028

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41374

American (AMR)

AF:

0.00

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10578

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

9796

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.20

(source)

DANN

Benign

0.53

PhyloP100

-0.99

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over