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Literature summary for 2.7.1.19 extracted from

  • Soule, K.; Rumpho, M.
    Light-regulated photosynthetic gene expression and phosphoribulokinase enzyme activity in the heterokont alga Vaucheria litorea (Xanthophyceae) and its symbiotic molluskan partner Elysia chlorotica (Gastropoda) (2012), J. Phycol., 48, 373-383.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
dithiothreitol in light-adapted extracts, the presence or absence of reduced dithiothreitol has no significant effect on enzyme activity. However, the dark-adapted extracts incubated with reduced dithiothreitol exhibit a highly significant increase in enzyme activity Vaucheria litorea

Inhibitors

Inhibitors Comment Organism Structure
dithiothreitol light- and dark-adapted extract prepared and assayed without reducing agent, is not significantly affected by incubation with reduced dithiothreitol, however, subsequent incubation with oxidized dithiothreitol results in a significant reduction of enzyme activity under both light and dark conditions Elysia chlorotica

Localization

Localization Comment Organism GeneOntology No. Textmining
nucleus
-
Elysia chlorotica 5634
-
nucleus
-
Vaucheria litorea 5634
-

Organism

Organism UniProt Comment Textmining
Elysia chlorotica
-
-
-
Vaucheria litorea
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + D-ribulose 5-phosphate
-
Elysia chlorotica ADP + D-ribulose 1,5-bisphosphate
-
?
ATP + D-ribulose 5-phosphate
-
Vaucheria litorea ADP + D-ribulose 1,5-bisphosphate
-
?

Synonyms

Synonyms Comment Organism
Prk
-
Elysia chlorotica
Prk
-
Vaucheria litorea

Expression

Organism Comment Expression
Elysia chlorotica prk transcript levels decrease upon illumination (13.4fold by 2 h post-illumination) and by 1.5fold after 2 h dark. Enzyme activity decreases with increasing starvation time, though activity is still measureable after 6 months down
Vaucheria litorea maximum expression of prk transcript is detected 6 h postillumination with 78.6fold increases. 2 h into the 12 h dark cycle, prk transcript level is still elevated 31.2fold up