WebInside the cell, malic acid is formed from phosphoenolpyruvate (PEP) through the activities of phosphoenolpyruvate carboxylase (PEPC) and malate dehydrogenase (MDH) , and cytosolic malate is transported to and sequestered in the vacuole . Malate can be degraded by the reversible reaction of MDH and NADP-malic enzyme (NADP-ME). WebWith untransformed rice cv. Kitaake as control, the characteristics of carbon assimilation and photoprotection of a transgenic rice line over-expressing maize phosphoenolpyruvate carboxylase (PEPC) were investigated. The PEPC activity in untransformed rice was low, but the activity was stimulated under high irradiance or photoinhibitory condition. PEPC in …
PCK2 Gene - GeneCards PCKGM Protein PCKGM …
WebDec 22, 2024 · This chapter describes the role of phosphoenolpyruvate carboxylase in C 4 photosynthesis and its activity assay protocols based on the measurement of … WebMar 1, 2014 · Phosphoenolpyruvate carboxylase, NADP-malic enzyme, and pyruvate, phosphate dikinase are involved in the acclimation of Nicotiana tabacum L. to drought stress Phosphoenolpyruvate carboxylase, NADP-malic enzyme, and pyruvate, phosphate dikinase are involved in the acclimation of Nicotiana tabacum L. to drought stress fishing redfish lake idaho
Expression Profiles of Phosphoenolpyruvate Carboxylase and ...
Phosphoenolpyruvate carboxylase (also known as PEP carboxylase, PEPCase, or PEPC; EC 4.1.1.31, PDB ID: 3ZGE) is an enzyme in the family of carboxy-lyases found in plants and some bacteria that catalyzes the addition of bicarbonate (HCO3 ) to phosphoenolpyruvate (PEP) to form the four-carbon compound … See more The PEP carboxylase enzyme is present in plants and some types of bacteria, but not in fungi or animals (including humans). The genes vary between organisms, but are strictly conserved around the active and allosteric sites discussed … See more The three most important roles that PEP carboxylase plays in plants and bacteria metabolism are in the C4 cycle, the CAM cycle, and the citric acid cycle biosynthesis flux. The primary mechanism of carbon dioxide assimilation in … See more The mechanism of PEP carboxylase has been well studied. The enzymatic mechanism of forming oxaloacetate is very exothermic and thereby irreversible; the biological See more PEP carboxylase is mainly subject to two levels of regulation: phosphorylation and allostery. Figure 3 shows a schematic of the regulatory mechanism. Phosphorylation by … See more WebPHOSPHOENOLPYRUVATE CARBOXYLASE: A Ubiquitous, Highly Regulated Enzyme in Plants Annual Review of Plant Physiology and Plant Molecular Biology Vol. 47:273-298 … WebAug 7, 2001 · Phosphoenolpyruvate carboxylase (PEPC) catalyzes the first step in the fixation of atmospheric CO (2) during C (4) photosynthesis. The crystal structure of C (4) … can cats lose their claws