15-66485171-C-G
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_002755.4(MAP2K1):c.875C>G(p.Thr292Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,666 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T292I) has been classified as Uncertain significance.
Frequency
Consequence
NM_002755.4 missense
Scores
Clinical Significance
Conservation
Publications
- cardiofaciocutaneous syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
- cardiofaciocutaneous syndrome 3Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp
- Noonan syndrome with multiple lentiginesInheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, ClinGen
- Noonan syndromeInheritance: AD Classification: LIMITED Submitted by: ClinGen
- Costello syndromeInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MAP2K1 | NM_002755.4 | c.875C>G | p.Thr292Ser | missense_variant | Exon 7 of 11 | ENST00000307102.10 | NP_002746.1 | |
| MAP2K1 | NM_001411065.1 | c.731C>G | p.Thr244Ser | missense_variant | Exon 6 of 10 | NP_001397994.1 | ||
| MAP2K1 | XM_011521783.4 | c.809C>G | p.Thr270Ser | missense_variant | Exon 7 of 11 | XP_011520085.1 | ||
| MAP2K1 | XM_017022411.3 | c.797C>G | p.Thr266Ser | missense_variant | Exon 6 of 10 | XP_016877900.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152124Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461542Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2AN XY: 727060 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152124Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74290 show subpopulations
ClinVar
Submissions by phenotype
not specified Uncertain:1
proposed classification - variant undergoing re-assessment, contact laboratory -
Melorheostosis;C3809006:Cardiofaciocutaneous syndrome 3 Uncertain:1
- -
RASopathy Uncertain:1
This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 292 of the MAP2K1 protein (p.Thr292Ser). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of cardio-facio-cutaneous syndrome (PMID: 26918529). ClinVar contains an entry for this variant (Variation ID: 44593). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MAP2K1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at