ID 3.4.22.33 DE fruit bromelain. CA Hydrolysis of proteins with broad specificity for peptide bonds. Bz-Phe- CA Val-Arg-|-NHMec is a good synthetic substrate, but there is no action on CA Z-Arg-Arg-|-NHMec (cf. stem bromelain). CC -!- From the pineapple plant, Ananas comosus. CC -!- Scarcely inhibited by chicken cystatin. CC -!- Another cysteine endopeptidase, with similar action on small molecule CC substrates, pinguinain (formerly EC 3.4.99.18), is obtained from the CC related plant, Bromelia pinguin, but pinguinain differs from fruit CC bromelain in being inhibited by chicken cystatin. CC -!- Belongs to peptidase family C1. CC -!- Formerly EC 3.4.4.24, EC 3.4.22.4 and EC 3.4.22.5. DR O23791, BROM1_ANACO; //