Meprin A (EC3.4.24.18, endopeptidase-2, meprin-a, meprin, N-benzoyl-L-tyrosyl-p-aminobenzoic acid hydrolase, PABA-peptide hydrolase, PPH) is an enzyme that cleaves protein and peptide substrates preferentially on carboxyl side of hydrophobic residues.[1] This metalloprotease can be associated with inflammatory responses.[2] It can be found in the extracellular space where it can also form complex structures by joining its monomers together.[2]