Literature summary for 1.1.99.18 extracted from

Henriksson, G.; Johansson, G.; Pettersson, G.
Is cellobiose oxidase from Phanerochaete chrysosporium a one-electron reductase? (1993), Biochim. Biophys. Acta, 1144, 184-190.

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KM Value [mM]

KM Value [mM]	KM Value Maximum [mM]	Substrate	Comment	Organism	Structure
0.0002	-	triiodide ion	-	Phanerodontia chrysosporium
0.0003	-	cytochrome c	-	Phanerodontia chrysosporium
0.5	-	3,5 di-t-butyl-o-benzoquinone	-	Phanerodontia chrysosporium
7	-	ferricyanide	-	Phanerodontia chrysosporium

Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
cellobiose + O2	Phanerodontia chrysosporium	O2 as natural electron acceptor	cellobiono-1,5-lactone + H2O2	-	?
cellobiose + O2	Phanerodontia chrysosporium K 3	O2 as natural electron acceptor	cellobiono-1,5-lactone + H2O2	-	?

Organism

Organism	UniProt	Comment	Textmining
Phanerodontia chrysosporium	-	-	-
Phanerodontia chrysosporium	-	white-rot fungus	-
Phanerodontia chrysosporium K 3	-	-	-

Purification (Commentary)

Purification (Comment)	Organism
purification of CBO and FAD fragment of CBO	Phanerodontia chrysosporium

Reaction

Reaction	Comment	Organism	Reaction ID
cellobiose + acceptor = cellobiono-1,5-lactone + reduced acceptor	mechanism of electron transfer	Phanerodontia chrysosporium	a

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
cellobiose + ferricyanide	-	Phanerodontia chrysosporium	cellobiono-1,5-lactone + ferrocyanide	-	r
cellobiose + ferricyanide	-	Phanerodontia chrysosporium K 3	cellobiono-1,5-lactone + ferrocyanide	-	r
cellobiose + O2	molecular O2 as electron acceptor	Phanerodontia chrysosporium	cellobiono-1,5-lactone + H2O2	product is H2O2 and the corresponding lactone	?
cellobiose + O2	O2 as natural electron acceptor	Phanerodontia chrysosporium	cellobiono-1,5-lactone + H2O2	-	?
cellobiose + O2	molecular O2 as electron acceptor	Phanerodontia chrysosporium K 3	cellobiono-1,5-lactone + H2O2	product is H2O2 and the corresponding lactone	?
cellobiose + O2	O2 as natural electron acceptor	Phanerodontia chrysosporium K 3	cellobiono-1,5-lactone + H2O2	-	?
cellobiose + triiodide ion	-	Phanerodontia chrysosporium	cellobiono-1,5-lactone + reduced triiodide ion	-	r
lactose + 3,5-di-tert-butyl-1,2-benzoquinone	-	Phanerodontia chrysosporium	4-O-(beta-D-galactopyranosyl)-D-glucono-1,5-lactone + ?	-	?
lactose + 3,5-di-tert-butyl-1,2-benzoquinone	-	Phanerodontia chrysosporium K 3	4-O-(beta-D-galactopyranosyl)-D-glucono-1,5-lactone + ?	-	?
additional information	electron acceptors: cytochrome c, ferricyanide, 3,5-di-t-butyl-o-benzoquinone and triiodide ion, 1,2,4,5-tetramethoxybenzene cation radical	Phanerodontia chrysosporium	?	-	?
additional information	electron acceptors: cytochrome c, ferricyanide, 3,5-di-t-butyl-o-benzoquinone and triiodide ion, 1,2,4,5-tetramethoxybenzene cation radical	Phanerodontia chrysosporium K 3	?	-	?

Turnover Number [1/s]

Turnover Number Minimum [1/s]	Turnover Number Maximum [1/s]	Substrate	Comment	Organism	Structure
5.5	-	ferricyanide	-	Phanerodontia chrysosporium
13	-	cytochrome c	-	Phanerodontia chrysosporium
17	-	triiodide ion	-	Phanerodontia chrysosporium
17	-	3,5 di-tert-butyl-o-benzoquinone	-	Phanerodontia chrysosporium

Cofactor

Cofactor	Comment	Organism	Structure
FAD	both the reductive and the oxidative half-reactions take place on the FAD domain	Phanerodontia chrysosporium
heme b	heme domain increases the rate of electron transfer to one-electron acceptors	Phanerodontia chrysosporium

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Release 2023.1 (January 2023)