The Enzyme Database

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EC 4.4.1.32     
Accepted name: C-phycocyanin α-cysteine-84 phycocyanobilin lyase
Reaction: [C-phycocyanin α-subunit]-Cys84-phycocyanobilin = apo-[C-phycocyanin α-subunit] + (2R,3E)-phycocyanobilin
Glossary: phycocyanobilin = 3,31-didehydro-2,3-dihydromesobiliverdin
Other name(s): cpcE (gene name); cpcF (gene name)
Systematic name: [C-phycocyanin α-subunit]-Cys84-phycocyanobilin:(2R,3E)-phycocyanobilin lyase
Comments: The enzyme, characterized from the cyanobacterium Synechococcus elongatus PCC 7942, catalyses the covalent attachment of the phycobilin chromophore phycocyanobilin to cysteine 84 of the α subunit of the phycobiliprotein C-phycocyanin.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Fairchild, C.D., Zhao, J., Zhou, J., Colson, S.E., Bryant, D.A. and Glazer, A.N. Phycocyanin α-subunit phycocyanobilin lyase. Proc. Natl. Acad. Sci. USA 89 (1992) 7017–7021. [PMID: 1495995]
2.  Fairchild, C.D. and Glazer, A.N. Oligomeric structure, enzyme kinetics, and substrate specificity of the phycocyanin α subunit phycocyanobilin lyase. J. Biol. Chem. 269 (1994) 8686–8694. [PMID: 8132596]
3.  Bhalerao, R.P., Lind, L.K. and Gustafsson, P. Cloning of the cpcE and cpcF genes from Synechococcus sp. PCC 6301 and their inactivation in Synechococcus sp. PCC 7942. Plant Mol. Biol. 26 (1994) 313–326. [PMID: 7524727]
[EC 4.4.1.32 created 2015]
 
 


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