phycocyanobilin-L-cysteinyl(84)-[C-phycocyanin alpha-subunit] <=> apo-L-cysteinyl(84)-[C-phycocyanin alpha-subunit] + (2R,3E)-phycocyanobilin
phycocyanobilin-l-cysteinyl(84)-[c-phycocyanin alpha-subunit] <=> apo-l-cysteinyl(84)-[c-phycocyanin alpha-subunit] + (2r,3e)-phycocyanobilin
phycocyanobilin-L-cysteinyl(84)-[C-phycocyanin alpha-subunit] <=> apo-L-cysteinyl(84)-[C-phycocyanin alpha-subunit] + (2R,3E)-phycocyanobilin
phycocyanobilin-l-cysteinyl(84)-[c-phycocyanin alpha-subunit] <=> apo-l-cysteinyl(84)-[c-phycocyanin alpha-subunit] + (2r,3e)-phycocyanobilin