Pyruvate kinase (PK) catalyzes the final step in glycolysis (Embden-Meyerhof pathway), the conversion of phosphoenolpyruvate to pyruvate with concomitant phosphorylation of ADP to ATP. PK forms a homotetramer and requires both magnesium and potassium ions for its activity. PK helps control the rate of glycolysis, along with phosphofructokinase and hexokinase. PK possesses allosteric sites for numerous effectors; Localized in the cytoplasm; High confidence in function and specificity.

Enolase; Catalyzes the reversible conversion of 2-phosphoglycerate into phosphoenolpyruvate. It is essential for the degradation of carbohydrates via glycolysis; Belongs to the enolase family.

Malate dehydrogenase; Catalyzes the reversible oxidation of malate to oxaloacetate.

Phosphoenolpyruvate synthase; Catalyzes the phosphorylation of pyruvate to phosphoenolpyruvate; Belongs to the PEP-utilizing enzyme family.

Phosphoenolpyruvate carboxykinase [ATP]; Involved in the gluconeogenesis. Catalyzes the conversion of oxaloacetate (OAA) to phosphoenolpyruvate (PEP) through direct phosphoryl transfer between the nucleoside triphosphate and OAA.

Phosphoenolpyruvate carboxykinase [ATP]; Involved in the gluconeogenesis. Catalyzes the conversion of oxaloacetate (OAA) to phosphoenolpyruvate (PEP) through direct phosphoryl transfer between the nucleoside triphosphate and OAA.

The citrate synthase is the enzyme that catalyzes an important reaction in both energy generation and carbon assimilation, the synthesis of citrate from oxaloacetate and acetyl-CoA in an aldol condensation, that is the first reaction of the tricarboxylic acid cycle (Krebs' cycle). It can directly form a carbon-carbon bond in the absence of metal ion cofactors; Allosterically inhibited by NADH; Localized in the cytoplasm; High confidence in function and specificity.

Glutamate synthase [NADPH] large chain; Glutamate synthase is a key enzyme in the early stages of the assimilation of ammonia. It is a complex iron-sulfur flavoprotein catalyzing the reductive transfer of the amido nitrogen from L-glutamine to 2-oxoglutarate to form two molecules of L-glutamate via intramolecular channelling of ammonia from the amidotransferase domain to the FMN-binding domain. Glutamate synthase forms an aggregate of 4 catalytic active heterodimers, consisting of a large and a small subunit (GltB). GltA binds as cofactors a 3Fe-4S cluster, a FAD and a FMN. Localized i [...]

N-formylkynurenine (aryl-) formamidase is an enzyme involved in the tryptophan metabolism. It hydrolyses the N-formyl-L-kynurenine to L-kynurenine and formate; belongs to the cyclase family; Localized in the cytoplasm; High confidence in function and specificity.