chr15-99675450-G-A
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_001319206.4(MEF2A):c.662G>A(p.Ser221Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,574 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )
Consequence
MEF2A
NM_001319206.4 missense
NM_001319206.4 missense
Scores
1
9
7
Clinical Significance
Conservation
PhyloP100: 9.45
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MEF2A | NM_001319206.4 | c.662G>A | p.Ser221Asn | missense_variant | 7/12 | ENST00000557942.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MEF2A | ENST00000557942.6 | c.662G>A | p.Ser221Asn | missense_variant | 7/12 | 5 | NM_001319206.4 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152214Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000802 AC: 2AN: 249230Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135206
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GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461360Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1AN XY: 726992
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152214Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74370
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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 | Apr 18, 2023 | The c.668G>A (p.S223N) alteration is located in exon 7 (coding exon 5) of the MEF2A gene. This alteration results from a G to A substitution at nucleotide position 668, causing the serine (S) at amino acid position 223 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D;.;D;D
M_CAP
Benign
D
MetaRNN
Uncertain
T;T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;.;.;.;.;.
MutationTaster
Benign
D;D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;N;N;N
REVEL
Benign
Sift
Uncertain
D;D;D;D;D;D
Sift4G
Benign
T;T;T;T;T;T
Polyphen
B;.;B;B;.;B
Vest4
MutPred
Loss of glycosylation at S223 (P = 0.0323);.;.;.;.;.;
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at