4.4.1.29: phycobiliprotein cysteine-84 phycobilin lyase

This is an abbreviated version!
For detailed information about phycobiliprotein cysteine-84 phycobilin lyase, go to the full flat file.

Word Map on EC 4.4.1.29

4.4.1.29

phycoerythrocyanin

chromophore

allophycocyanin

phycobiliproteins

phycocyanin

biliproteins

apoproteins

lyases

beta-subunits

phycoerythrobilin

phycobilisomes

light-harvesting

synechococcus

cyanobacterial

regioselective

chromophorylated

maxima

anabaena

nostoc

s-type

imidazole

synthesis

Reaction

[allophycocyanin alpha-subunit]-Cys84-phycocyanobilin

Synonyms

alr0617, CpcS-1, CpcS-III, CpcS1, CpcSU lyase, CpcU, cpeS, CpeS1, PCB:Cys-beta84-phycobiliprotein lyase, phycobilin:cystein-84 biliprotein lyase, phycocyanobilin:Cys-beta84-phycobiliprotein lyase

ECTree

4 Lyases

4.4 Carbon-sulfur lyases

4.4.1 Carbon-sulfur lyases (only sub-subclass identified to date)

4.4.1.29 phycobiliprotein cysteine-84 phycobilin lyase

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Results	in table
6	AA Sequence
2	Application
8	Cloned(Commentary)
1	Crystallization (Commentary)
3	General Information
8	Inhibitors
12	kcat/KM [mM/s]
14	KM Value [mM]
1	Metals/Ions
4	Molecular Weight [Da]
12	Natural Substrates/ Products (Substrates)
32	Organism
3	pH Optimum
2	pH Range
1	pI Value
17	Protein Variants
2	Purification (Commentary)
17	Reaction
22	Reference
63	Substrates and Products (Substrate)
10	Subunits
27	Synonyms
1	Systematic Name
3	Temperature Optimum [°C]
2	Temperature Range [°C]
14	Turnover Number [1/s]

General Information

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General Information on EC 4.4.1.29 - phycobiliprotein cysteine-84 phycobilin lyase

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malfunction

2 entries

physiological function

Synechococcus sp.

A8HTM2

sSingle and double mutant strains for lyase subunits cpcSI and cpcU exhibit slower growth rates, reduced apo-phycobiliprotein levels, and impaired assembly of phycobilisomes. A cpcSI cpcU cpcT triple mutant is nearly devoid of apo-phycobiliprotein. The cpcSI and cpcU mutants produce an altered form of the phycocyanin beta-subunit, which has a mass about 588 Da smaller than the wild-type protein. The modified phycobilisomes from the cpcsI, cpcU, and cpcSIcpcU mutant strains carry a phycocyanobilin chromophore at Cys153 of CpcB but not at Cys82. Both CpcSI and CpcU are required for covalent attachment of phycocyanobilin to Cys82 of the phycocyanin subunit

732032