The product is the recombinant form of the Pseudomonas sp. (strain RS-16) enzyme carboxypeptidase G2 that is produced in Escherichia coli. Glutamate carboxypeptidase https://www.creativebiomart.net/therapeutic-proteins/p/121/recombinant-carboxypeptidase-g2-from-pseudomonas-sp-strain-rs-16/