rs200371894
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BA1
This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.893C>T (p.Pro298Leu) variant in the MAP2K2 gene is 0.953% (68/5776) of East Asian chromosomes by the Exome Aggregation Consortium, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert Panel (BA1; PMID:29493581) LINK:https://erepo.genome.network/evrepo/ui/classification/CA180870/MONDO:0021060/004
Frequency
Consequence
NM_030662.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -8 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MAP2K2 | NM_030662.4 | c.893C>T | p.Pro298Leu | missense_variant | Exon 7 of 11 | ENST00000262948.10 | NP_109587.1 | |
MAP2K2 | XM_047439100.1 | c.323C>T | p.Pro108Leu | missense_variant | Exon 5 of 9 | XP_047295056.1 | ||
MAP2K2 | XM_006722799.3 | c.705+1792C>T | intron_variant | Intron 6 of 8 | XP_006722862.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000486 AC: 74AN: 152212Hom.: 1 Cov.: 33
GnomAD3 exomes AF: 0.000964 AC: 218AN: 226214Hom.: 1 AF XY: 0.00101 AC XY: 125AN XY: 123824
GnomAD4 exome AF: 0.000299 AC: 434AN: 1451514Hom.: 3 Cov.: 33 AF XY: 0.000322 AC XY: 232AN XY: 721346
GnomAD4 genome AF: 0.000486 AC: 74AN: 152330Hom.: 1 Cov.: 33 AF XY: 0.000604 AC XY: 45AN XY: 74484
ClinVar
Submissions by phenotype
not specified Benign:2
p.Pro298Leu in exon 7 of MAP2K2: This variant is not expected to have clinical s ignificance because it has been identified in 1.2% (68/5776) of East Asian chrom osomes, including 2 homozygotes, by the Exome Aggregation Consortium (ExAC, http ://exac.broadinstitute.org; dbSNP rs200371894). -
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
RASopathy Benign:2
The filtering allele frequency of the c.893C>T (p.Pro298Leu) variant in the MAP2K2 gene is 0.953% (68/5776) of East Asian chromosomes by the Exome Aggregation Consortium, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert Panel (BA1; PMID:29493581) -
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not provided Benign:1
Variant summary: The MAP2K2 c.893C>T (p.Pro298Leu) variant involves the alteration of a conserved nucleotide. 3/5 in silico tools predict a damaging outcome for this variant. This variant was found in 79/73910 control chromosomes (2 homozygotes), predominantly observed in the East Asian subpopulation at a frequency of 0.0117729 (68/5776). This frequency greatly exceeds the estimated maximal expected allele frequency of a pathogenic MAP2K2 variant (0.0000025), srong evidence this is a benign polymorphism found primarily in the populations of East Asian origin. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign. The variant of interest has not, to our knowledge, been reported in affected individuals via publications nor evaluated for functional impact by in vivo/vitro studies. Taken together, this variant is classified as benign. -
Hypertrophic cardiomyopathy Benign:1
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Cardiovascular phenotype Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Noonan syndrome and Noonan-related syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at