apo-L-cysteinyl(155)-[phycoerythrocyanin beta-subunit] + (2R,3E)-phycocyanobilin => phycocyanobilin-L-cysteinyl(155)-[phycoerythrocyanin beta-subunit]
apo-l-cysteinyl(155)-[phycoerythrocyanin beta-subunit] + (2r,3e)-phycocyanobilin => phycocyanobilin-l-cysteinyl(155)-[phycoerythrocyanin beta-subunit]
apo-L-cysteinyl(155)-[phycoerythrocyanin beta-subunit] + (2R,3E)-phycocyanobilin => phycocyanobilin-L-cysteinyl(155)-[phycoerythrocyanin beta-subunit]
apo-l-cysteinyl(155)-[phycoerythrocyanin beta-subunit] + (2r,3e)-phycocyanobilin => phycocyanobilin-l-cysteinyl(155)-[phycoerythrocyanin beta-subunit]