ID   4.4.1.33
DE   R-phycocyanin alpha-cysteine-84 phycourobilin lyase/isomerase.
CA   phycourobilin-L-cysteinyl(84)-[R-phycocyanin alpha-subunit] = (2R,3E)-
CA   phycoerythrobilin + apo-L-cysteinyl(84)-[R-phycocyanin alpha-subunit].
CC   -!- The enzyme, characterized from the cyanobacterium Synechococcus sp.
CC       WH8102, catalyzes the covalent attachment of the phycobilin
CC       chromophore phycoerythrobilin to cysteine 84 of the alpha subunit of
CC       the phycobiliprotein R-phycocyanin and its isomerization to
CC       phycourobilin.
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