Literature summary extracted from

Hariharan, T.; Johnson, P.J.; Cattolico, R.A.
Purification and characterization of phosphoribulokinase from the marine chromophytic alga Heterosigma carterae (1998), Plant Physiol., 117, 321-329.

Activating Compound

EC Number	Activating Compound	Comment	Organism	Structure
2.7.1.19	dithiothreitol	above 0.5 mM	Heterosigma akashiwo

KM Value [mM]

EC Number	KM Value [mM]	KM Value Maximum [mM]	Substrate	Comment	Organism	Structure
2.7.1.19	0.208	-	ATP	pH 8, 25°C	Heterosigma akashiwo
2.7.1.19	0.226	-	D-ribulose 5-phosphate	pH 8, 25°C	Heterosigma akashiwo

Molecular Weight [Da]

EC Number	Molecular Weight [Da]	Molecular Weight Maximum [Da]	Comment	Organism
2.7.1.19	53000	-	4 * 53000, SDS-PAGE	Heterosigma akashiwo
2.7.1.19	214000	-	-	Heterosigma akashiwo

Organism

EC Number	Organism	UniProt	Comment	Textmining
2.7.1.19	Heterosigma akashiwo	-	marine chromophytic alga	-

Purification (Commentary)

EC Number	Purification (Comment)	Organism
2.7.1.19	300fold	Heterosigma akashiwo

Specific Activity [micromol/min/mg]

EC Number	Specific Activity Minimum [µmol/min/mg]	Specific Activity Maximum [µmol/min/mg]	Comment	Organism
2.7.1.19	217.8	-	-	Heterosigma akashiwo

Substrates and Products (Substrate)

EC Number	Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
2.7.1.19	D-ribulose 5-phosphate + ATP	-	Heterosigma akashiwo	D-ribulose 1,5-diphosphate + ADP	-	?

Subunits

EC Number	Subunits	Comment	Organism
2.7.1.19	tetramer	4 * 53000, SDS-PAGE	Heterosigma akashiwo

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Release 2023.1 (January 2023)