ORF_ID:alr2980; hypothetical protein.

Phycocyanobilin:ferredoxin oxidoreductase; Catalyzes the four-electron reduction of biliverdin IX-alpha (2-electron reduction at both the A and D rings); the reaction proceeds via an isolatable 2-electron intermediate, 181,182-dihydrobiliverdin. Upon overexpression in E.coli with PCB:ferredoxin oxidoreductase, CpeS and either CpcB or PecB permits synthesis of phycocyanin-coupled CpcB or PecB; Belongs to the HY2 family.

ORF_ID:asr2378; hypothetical protein.

Phycocyanobilin lyase CpcS 1; Catalyzes the site-selective attachment of phycocyanobilin (PCB) to 'Cys-82' in CpcB and 'Cys-83' in PecB. Also able to add PCB to ApcA1, ApcA2, ApcB, ApcD and ApcF, but not PecA. In vitro can be made to add phycoerythrobilin, a non-physiological substrate, to its target proteins (using genes from Fremyella diplosiphon PCC 7601). Binds PCB extremely rapidly, followed by a much slower phase of PCB transfer to the apo-acceptor protein. This suggests that the lyase has a chaperone- like function, and may serve to regulate the manner (possibly the conformation [...]

ORF_ID:all4101; hypothetical protein; Belongs to the ycf91 family.

Phycoerythrocyanin beta chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex.

Phycocyanin beta chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex.

CAB/ELIP/HLIP-related protein; ORF_ID:asl2354.

Phycobilisome core component; A variant beta-allophycocyanin (AP) which forms a complex with ApcE, a phycobilisome terminal emitter that influences energy transfer to photosystem II; Belongs to the phycobiliprotein family.