Phosphoenolpyruvate carboxykinase (diphosphate)

Phosphoenolpyruvate carboxykinase (diphosphate) (EC 4.1.1.38) is an enzyme with systematic name diphosphate:oxaloacetate carboxy-lyase (transphosphorylating; phosphoenolpyruvate-forming). This enzyme catalyses the following chemical reaction

diphosphate + oxaloacetate

\rightleftharpoons

phosphate + phosphoenolpyruvate + CO₂

This enzyme also catalyses the reaction:

phosphoenolpyruvate + GTP + CO₂

\rightleftharpoons

pyruvate + GDP.

It is transcriptionally upregulated in the liver by glucagon.

References

Lochmüller H, Wood HG, Davis JJ (December 1966). "Phosphoenolpyruvate carboxytransphosphorylase. II. Crystallization and properties". The Journal of Biological Chemistry. 241 (23): 5678–91. PMID 4288896.

External links

Phosphoenolpyruvate+carboxykinase+(diphosphate) at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

v t e Carbon–carbon lyases (EC 4.1)
4.1.1: Carboxy-lyases	Acetoacetate decarboxylase Adenosylmethionine decarboxylase Arginine decarboxylase Aromatic L-amino acid decarboxylase Glutamate decarboxylase Histidine decarboxylase Lysine decarboxylase Malonyl-CoA decarboxylase Ornithine decarboxylase Oxaloacetate decarboxylase Phosphoenolpyruvate carboxykinase Phosphoenolpyruvate carboxylase Phosphoribosylaminoimidazole carboxylase Pyrophosphomevalonate decarboxylase Pyruvate decarboxylase RuBisCO Uridine monophosphate synthetase/Orotidine 5'-phosphate decarboxylase Uroporphyrinogen III decarboxylase
4.1.2: Aldehyde-lyases	Fructose-bisphosphate aldolase Aldolase A Aldolase B Aldolase C 2-hydroxyphytanoyl-CoA lyase Threonine aldolase
4.1.3: Oxo-acid-lyases	Isocitrate lyase 3-hydroxy-3-methylglutaryl-CoA lyase
4.1.99: Other	Tryptophanase Photolyase CPD lyase Spore photoproduct lyase

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

Portal:

Biology

Category:

EC 4.1.1

Misplaced Pages

Phosphoenolpyruvate carboxykinase (diphosphate)

See also

References

External links