ID:AMPM2_HUMAN DESCRIPTION: RecName: Full=Methionine aminopeptidase 2; Short=MAP 2; Short=MetAP 2; EC=3.4.11.18; AltName: Full=Initiation factor 2-associated 67 kDa glycoprotein; AltName: Full=Peptidase M 2; AltName: Full=p67eIF2; Short=p67; FUNCTION: Removes the N-terminal methionine from nascent proteins. The catalytic activity of human METAP2 toward Met-Val peptides is consistently two orders of magnitude higher than that of METAP1, suggesting that it is responsible for processing proteins containing N-terminal Met-Val and Met-Thr sequences in vivo. FUNCTION: Protects eukaryotic initiation factor EIF2S1 from translation-inhibiting phosphorylation by inhibitory kinases such as EIF2AK2/PKR and EIF2AK1/HCR. Plays a critical role in the regulation of protein synthesis. CATALYTIC ACTIVITY: Release of N-terminal amino acids, preferentially methionine, from peptides and arylamides. COFACTOR: Binds 2 cobalt ions per subunit. The true nature of the physiological cofactor is under debate. The enzyme is also active with zinc, manganese or divalent iron ions. SUBUNIT: Interacts strongly with the eIF-2 gamma-subunit EIF2S3 (By similarity). Binds EIF2S1 at low magnesium concentrations. SUBCELLULAR LOCATION: Cytoplasm. Note=About 30% of expressed METAP2 associates with polysomes. PTM: Contains approximately 12 O-linked N-acetylglucosamine (GlcNAc) residues. O-glycosylation is required for EIF2A binding. SIMILARITY: Belongs to the peptidase M24A family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P50579
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.