Purity > 85% as determined by SDS-PAGE. MW: 36.9kDa. Full Length: 1-285aa. N-terminal 10xHis-tagged. Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh). 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. Requires deformylation of the N-formylated initiator methionine before it can be hydrolyzed.