PPDK Reaction
PPDK may refer to: * Pyruvate, phosphate dikinase, an enzyme * Democratic Party of Kosovo The Democratic Party of Kosovo ( sq, Partia Demokratike e Kosovës; abbr. ''PDK'') is one of the largest political parties in Kosovo. It was originally a social-democratic party coming out of the demilitarised Kosovo Liberation Army after th ...

Pyruvate, Phosphate Dikinase
Pyruvate, phosphate dikinase, or PPDK () is an enzyme in the family of transferases that catalyzes the chemical reaction :ATP + pyruvate + phosphate \rightleftharpoons AMP + phosphoenolpyruvate + diphosphate This enzyme has been studied primarily in plants, but it has been studied in some bacteria as well. It is a key enzyme in gluconeogenesis and photosynthesis that is responsible for reversing the reaction performed by pyruvate kinase in Embden-Meyerhof-Parnas glycolysis. It should not be confused with pyruvate, water dikinase. It belongs to the family of transferases, to be specific, those transferring phosphorus-containing groups (phosphotransferases) with paired acceptors (dikinases). This enzyme participates in pyruvate metabolism and carbon fixation. Nomenclature The systematic name of this enzyme class is ATP:pyruvate, phosphate phosphotransferase. Other names in common use include pyruvate, orthophosphate dikinase, pyruvate-phosphate dikinase (phosphorylating), ...
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