2-85541658-G-A

Variant names:

• chr2-85541658-G-A
• NM_005911.6:c.318G>A
• MAT2A p.Val106Val

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_005911.6(MAT2A):​c.318G>A​(p.Val106Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. V106V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: MAT2A NM_005911.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.532
• Publications: 0 publications found

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: Unknown Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.57).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAT2A	NM_005911.6	MANE Select	c.318G>A	p.Val106Val	synonymous	Exon 4 of 9	NP_005902.1	P31153-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAT2A	ENST00000306434.8	TSL:1 MANE Select	c.318G>A	p.Val106Val	synonymous	Exon 4 of 9	ENSP00000303147.3	P31153-1
	MAT2A	ENST00000409017.1	TSL:1	c.129G>A	p.Val43Val	synonymous	Exon 4 of 8	ENSP00000386353.1	P31153-2
	MAT2A	ENST00000481412.5	TSL:1	n.296G>A		non_coding_transcript_exon	Exon 4 of 7

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.57
CADD	Benign	11
DANN	Benign	0.77
PhyloP100		0.53
RBP_binding_hub_radar		1.0
RBP_regulation_power_radar		2.7
Mutation Taster		=100/0	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr2-85768781;