ID 4.4.1.30 DE phycobiliprotein beta-cysteine-155 phycobilin lyase. CA (1) phycocyanobilin-L-cysteinyl(155)-[C-phycocyanin beta-subunit] = CA (2R,3E)-phycocyanobilin + apo-L-cysteinyl(155)-[C-phycocyanin beta- CA subunit]. CA (2) phycocyanobilin-L-cysteinyl(155)-[phycoerythrocyanin beta-subunit] = CA (2R,3E)-phycocyanobilin + apo-L-cysteinyl(155)-[phycoerythrocyanin beta- CA subunit]. CC -!- The enzyme, found in cyanobacteria and red algae, catalyzes the CC attachment of the phycobilin chromophore phycocyanobilin to cysteine CC 155 of the beta subunits of the phycobiliproteins C-phycocyanin and CC phycoerythrocyanin. CC -!- The numbering used here corresponds to the enzyme from Anabaena, CC and could vary slightly in other organisms. //