dbSNP rs967480004: MEF2A:p.Gly241Asp (chr15-99690292-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001319206.4(MEF2A):c.722G>A(p.Gly241Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,456 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MEF2A
NM_001319206.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.66

Publications

6 publications found

Variant links:

Genes affected

MEF2A (HGNC:6993): (myocyte enhancer factor 2A) The protein encoded by this gene is a DNA-binding transcription factor that activates many muscle-specific, growth factor-induced, and stress-induced genes. The encoded protein can act as a homodimer or as a heterodimer and is involved in several cellular processes, including muscle development, neuronal differentiation, cell growth control, and apoptosis. Defects in this gene could be a cause of autosomal dominant coronary artery disease 1 with myocardial infarction (ADCAD1). Several transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jan 2010]

MEF2A links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEF2A	NM_001319206.4 link	c.722G>A	p.Gly241Asp	missense_variant	Exon 8 of 12	ENST00000557942.6	NP_001306135.1	Q02078-2A0A0S2Z4N0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MEF2A	ENST00000557942.6 link	c.722G>A	p.Gly241Asp	missense_variant	Exon 8 of 12	5	NM_001319206.4	ENSP00000453095.1		Q02078-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000402

AC:

AN:

248620

AF XY:

0.00000742

show subpopulations

Gnomad AFR exome

AF:

0.0000649

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:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461456

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726972

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86188

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5734

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111790

Other (OTH)

AF:

0.00

AC:

AN:

60366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 21, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.728G>A (p.G243D) alteration is located in exon 8 (coding exon 6) of the MEF2A gene. This alteration results from a G to A substitution at nucleotide position 728, causing the glycine (G) at amino acid position 243 to be replaced by an aspartic acid (D). 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

BayesDel_addAF

Uncertain

0.046

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.62

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

D;D;D;.;D;D

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.55

D;D;D;D;D;D

MetaSVM

Benign

-0.56

MutationAssessor

Uncertain

2.5

M;.;.;.;.;.

PhyloP100

7.7

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-1.4

N;N;N;N;N;N

REVEL

Benign

0.23

Sift

Uncertain

0.022

D;D;D;D;D;D

Sift4G

Benign

0.48

T;T;T;T;T;T

Polyphen

0.76

P;.;P;P;.;D

Vest4

0.71

MutPred

0.24

Loss of MoRF binding (P = 0.0629);.;.;.;.;.;

MVP

0.35

MPC

0.24

ClinPred

0.78

GERP RS

5.5

gMVP

0.29

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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rs967480004

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over