Papain is a cysteine hydrolase enzyme that is found naturally occurring in Papaya(Carica papaya). Papain has various uses including cell isolation, protein structural studies, cleaving antibodies, and various others. Papain is formed from a peptide that is 212 amino acids in length. It consists of 25% and 21% .The structure also consists of three between cysteine residues. Another important residue to the structure is Cysteine 25 which has a sulfhydryl group that plays a major role in the active site activity[[1]].
Possible ligand
