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BRENDA support

Information on EC 4.4.1.29 - phycobiliprotein cysteine-84 phycobilin lyase

for references in articles please use BRENDA:EC4.4.1.29

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IUBMB 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 β subunits of C-phycocyanin and phycoerythrocyanin and to both subunits of allophycocyanin. In addition, it can attach phycoerythrobilin to both subunits of C-phycoerythrin.

The enzyme appears in viruses and cellular organisms
Reaction Schemes
hide(3 overall reactions are displayed. Show all (5)>>)
[C-phycocyanin beta-subunit]-Cys84-phycocyanobilin
=
apo-[C-phycocyanin beta-subunit]
+
[phycoerythrocyanin beta-subunit]-Cys84-phycocyanobilin
=
apo-[phycoerythrocyanin beta-subunit]
+
[allophycocyanin alpha-subunit]-Cys84-phycocyanobilin
=
apo-[allophycocyanin alpha-subunit]
+

Synonyms
cpcs1, cpes1, alr0617, cpcsu lyase, phycobilin:cystein-84 biliprotein lyase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
[allophycocyanin alpha-subunit]-Cys84-phycocyanobilin = apo-[allophycocyanin alpha-subunit] + (2R,3E)-phycocyanobilin
show the reaction diagram
[allophycocyanin beta-subunit]-Cys84-phycocyanobilin = apo-[allophycocyanin beta-subunit] + (2R,3E)-phycocyanobilin
show the reaction diagram
[C-phycocyanin beta-subunit]-Cys84-phycocyanobilin = apo-[C-phycocyanin beta-subunit] + (2R,3E)-phycocyanobilin
show the reaction diagram
[C-phycoerythrin alpha-subunit]-Cys84-phycoerythrobilin = apo-[C-phycoerythrin alpha-subunit] + (2R,3E)-phycoerythrobilin
show the reaction diagram
[C-phycoerythrin beta-subunit]-Cys84-phycoerythrobilin = apo-[C-phycoerythrin beta-subunit] + (2R,3E)-phycoerythrobilin
show the reaction diagram
[phycoerythrocyanin beta-subunit]-Cys84-phycocyanobilin = apo-[phycoerythrocyanin beta-subunit] + (2R,3E)-phycocyanobilin
show the reaction diagram