| Product Name |
phycobiliprotein cysteine-84 phycobilin lyase |
| Example Structure |
 |
| Synonyms |
alr0617, CpcS-1, CpcS-III, CpcS1, CpcSU lyase, CpcU, cpeS, CpeS1, PCB:Cys-beta84-phycobiliprotein lyase, phycobilin:cystein-84 biliprotein lyase, phycocyanobilin:Cys-beta84-phycobiliprotein lyase |
| EC Number |
4.4.1.29 |
| CAS Registry Number |
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| Comments |
The enzyme, found in cyanobacteria and red algae, catalyses the attachment of phycobilin chromophores to cysteine 84 of several phycobiliproteins (the numbering used here corresponds to the enzyme from?Anabaena, in other organisms the number may vary slightly). It can attach phycocyanobilin to the ¦Â subunits of C-phycocyanin and phycoerythrocyanin and to both subunits of allophycocyanin. In addition, it can attach phycoerythrobilin to both subunits of C-phycoerythrin. |
| Cofactor |
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| History |
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| Reactions |
(1) [C-phycocyanin beta-subunit]-Cys(84)-phycocyanobilin = apo- [C-phycocyanin beta-subunit] + (2R,3E)-phycocyanobilin. (2) [Phycoerythrocyanin beta-subunit]-Cys(84)-phycocyanobilin = apo- [phycoerythrocyanin beta-subunit] + (2R,3E)-phycocyanobilin. (3) [Allophycocyanin alpha-subunit]-Cys(84)-phycocyanobilin = apo- [allophycocyanin alpha-subunit] + (2R,3E)-phycocyanobilin. (4) [Allophycocyanin beta-subunit]-Cys(84)-phycocyanobilin = apo- [allophycocyanin beta-subunit] + (2R,3E)-phycocyanobilin. (5) [C-phycoerythrin alpha-subunit]-Cys(84)-phycoerythrobilin = apo- [C-phycoerythrin alpha-subunit] + (2R,3E)-phycoerythrobilin. |
