rs886041310
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PS1_Very_StrongPM1PM2PM5PP3_Moderate
The NM_030662.4(MAP2K2):c.183A>T(p.Lys61Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K61E) has been classified as Likely pathogenic.
Frequency
Consequence
NM_030662.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MAP2K2 | NM_030662.4 | c.183A>T | p.Lys61Asn | missense_variant | 2/11 | ENST00000262948.10 | |
MAP2K2 | XM_006722799.3 | c.183A>T | p.Lys61Asn | missense_variant | 2/9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MAP2K2 | ENST00000262948.10 | c.183A>T | p.Lys61Asn | missense_variant | 2/11 | 1 | NM_030662.4 | P1 | |
MAP2K2 | ENST00000394867.9 | n.622A>T | non_coding_transcript_exon_variant | 1/10 | 5 | ||||
MAP2K2 | ENST00000599345.1 | n.380A>T | non_coding_transcript_exon_variant | 2/7 | 5 | ||||
MAP2K2 | ENST00000687128.1 | n.622A>T | non_coding_transcript_exon_variant | 1/7 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome Cov.: 36
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | May 06, 2016 | Variant classified as Uncertain Significance - Favor Pathogenic. The p.Lys61Asn variant in MAP2K2 has not been previously reported in individuals with Noonan sp ectrum disorders or in large population studies. However, another variant (p.Lys 61Glu) at the same codon was identified in two probands with clinical features o f Cardio-facio-cutaneous syndrome, and a third variant (p.Lys61Thr) at the same codon was reported to have occurred de novo in one proband with a RASopathy (Nar umi 2007, Nava 2007, Wong Ramsey 2014), suggesting that changes at this position may not be tolerated. Computational prediction tools and conservation analysis do not provide strong support for or against an impact to the protein. In summar y, while there is some suspicion for a pathogenic role, the clinical significanc e of the p.Lys61Asn variant is uncertain. - |
Noonan syndrome with multiple lentigines Uncertain:1
Uncertain significance, no assertion criteria provided | clinical testing | Service de Génétique Moléculaire, Hôpital Robert Debré | - | - - |
Noonan syndrome 1 Uncertain:1
Uncertain significance, no assertion criteria provided | clinical testing | Molecular Genetics, Centre for Human Genetics | - | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at