EOG873S5X GO:0046872 18/76 metal ion binding molecular_function "Interacting selectively and non-covalently with any metal ion." [GOC:ai] EOG873S5X GO:0070084 17/76 protein initiator methionine removal biological_process "The protein modification process in which the translation-initiating methionine or formylmethionine residue is removed from a protein." [GOC:imk, GOC:mah] EOG873S5X GO:0070006 17/76 metalloaminopeptidase activity molecular_function "Catalysis of the hydrolysis of N-terminal amino acid residues from a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions." [GOC:mah, http://merops.sanger.ac.uk/about/glossary.htm#AMINOPEPTIDASE, http://merops.sanger.ac.uk/about/glossary.htm#CATTYPE] EOG873S5X GO:0004177 4/76 aminopeptidase activity molecular_function "Catalysis of the hydrolysis of N-terminal amino acid residues from in a polypeptide chain." [GOC:jl, ISBN:0198506732] EOG873S5X GO:0008235 3/76 metalloexopeptidase activity molecular_function "Catalysis of the hydrolysis of a peptide bond not more than three residues from the N- or C-terminus of a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions." [GOC:mah, http://merops.sanger.ac.uk/about/glossary.htm#CATTYPE, http://merops.sanger.ac.uk/about/glossary.htm#EXOPEPTIDASE]