A  technique for the removal of pyroglutamic acid from the amino terminus of proteins using calf liver pyroglutamate amino peptidase.
D000595:Amino Acid Sequence; D000626:Aminopeptidases; D000818:Animals; D002417:Cattle; D007074:Immunoglobulin G; D007143:Immunoglobulin Heavy Chains; D007147:Immunoglobulin Light Chains; D008099:Liver / Q000201:enzymology*; D008722:Methods; D011751:Pyroglutamyl-Peptidase I; D011760:Pyrrolidinones; D011761:Pyrrolidonecarboxylic Acid
D007074:Immunoglobulin G; D007143:Immunoglobulin Heavy Chains; D007147:Immunoglobulin Light Chains; D011760:Pyrrolidinones; D000626:Aminopeptidases; D011751:Pyroglutamyl-Peptidase I; D011761:Pyrrolidonecarboxylic Acid