4.4.1.33: R-phycocyanin alpha-cysteine-84 phycourobilin lyase/isomerase

This is an abbreviated version!
For detailed information about R-phycocyanin alpha-cysteine-84 phycourobilin lyase/isomerase, go to the full flat file.

Reaction

Synonyms

RpcG

ECTree

     4 Lyases

         4.4 Carbon-sulfur lyases

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

                4.4.1.33 R-phycocyanin alpha-cysteine-84 phycourobilin lyase/isomerase

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1	Cloned(Commentary)
2	Natural Substrates/ Products (Substrates)
3	Organism
1	Pathway
1	Reaction
2	Reference
5	Substrates and Products (Substrate)
2	Subunits
2	Synonyms
1	Systematic Name

Substrates Products

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Substrates Products on EC 4.4.1.33 - R-phycocyanin alpha-cysteine-84 phycourobilin lyase/isomerase

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SUBSTRATE

PRODUCT                       

REACTION DIAGRAM

ORGANISM

UNIPROT

COMMENTARY
(Substrate)

LITERATURE
(Substrate)

COMMENTARY
(Product)

LITERATURE
(Product)

Reversibility
r=reversible
ir=irreversible
?=not specified

apo-[R-phycocyanin alpha-subunit] + (3E)-phycoerythrobilin

[R-phycocyanin alpha-subunit]-Cys84-phycourobilin

4 entries

apo-[R-phycoerythrocyanin alpha-subunit] + phycocyanobilin

[R-phycocyanin alpha-subunit]-Cys84-phycoviolobilin

Synechococcus sp.

-

the enzyme does not use phycocyanobilin in natural conditions because no phycoviolobilin is observed in Synechococcus sp. WH8102 or any other rpcG-containing strain

732035

-

-

?

apo-[R-phycocyanin alpha-subunit] + (3E)-phycoerythrobilin

[R-phycocyanin alpha-subunit]-Cys84-phycourobilin

Synechococcus sp.

-

the blue-green absorbing phycourobilin (max 495 nm) is the major phycobilin of cyanobacteria living in oceanic areas where blue light penetrates deeply into the water column

732035

-

-

?

apo-[R-phycocyanin alpha-subunit] + (3E)-phycoerythrobilin

[R-phycocyanin alpha-subunit]-Cys84-phycourobilin

Synechococcus sp.

-

the enzyme catalyses the covalent attachment of the phycobilin chromophore phycoerythrobilin to cysteine 84 of the alpha subunit of the phycobiliprotein R-phycocyanin and its isomerization to phycourobilin

732035

-

-

?

apo-[R-phycocyanin alpha-subunit] + (3E)-phycoerythrobilin

[R-phycocyanin alpha-subunit]-Cys84-phycourobilin

Synechococcus sp. WH8102

-

the blue-green absorbing phycourobilin (max 495 nm) is the major phycobilin of cyanobacteria living in oceanic areas where blue light penetrates deeply into the water column

732035

-

-

?

apo-[R-phycocyanin alpha-subunit] + (3E)-phycoerythrobilin

[R-phycocyanin alpha-subunit]-Cys84-phycourobilin

Synechococcus sp. WH8102

-

the enzyme catalyses the covalent attachment of the phycobilin chromophore phycoerythrobilin to cysteine 84 of the alpha subunit of the phycobiliprotein R-phycocyanin and its isomerization to phycourobilin

732035

-

-

?