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mapB

Gene
mapB
Protein
Methionine aminopeptidase 2
Organism
Bacillus subtilis (strain 168)
Length
249 amino acids
Function
Removes the N-terminal methionine from nascent proteins. The N-terminal methionine is often cleaved when the second residue in the primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser, Thr, or Val). Requires deformylation of the N(alpha)-formylated initiator methionine before it can be hydrolyzed.
Similarity
Belongs to the peptidase M24A family. Methionine aminopeptidase type 1 subfamily.
Mass
27.211 kDa
Sequence
MIVTNDQELEGLKKIGRIVALAREEMKRKAEPGMSTKDLDLIGKAVLDEHGAVSAPEKEYDFPGVTCISVNDEVAHGIPSTSKILKAGDLVNIDISAEFGGFYSDTGISFVLGEGEERLHKLCQCAENAFQKGLQQAKAGKRQNQIGRAVYHEARSQGFTVIKTLTGHGIGRSLHEAPNHIMNYYDPFDNALFKNGTVIALEPFISTKAETIVEAGDGWTFKTPDKSMVAQVEHTIVITKDEPIILTKL