CAS 9067-77-0: Phosphoenolpyruvate carboxylase (phosphate)

Phosphoenolpyruvate carboxylase (PEPC) is an enzyme that irreversibly catalyzes the conversion of phosphoenolpyruvate and bicarbonate to oxaloacetate and

Phosphoenolpyruvate carboxylase is an enzyme, often found naturally in the cytosol of plant cells, which is derived primarily from various plant species. It plays a crucial role in the photosynthetic process, particularly in C4 and CAM plants. By catalyzing the irreversible carboxylation of phosphoenolpyruvate (PEP) to oxaloacetate, this enzyme facilitates the fixation of carbon dioxide, a vital step in the conversion of carbon dioxide into organic compounds during photosynthesis. The enzyme's mode of action involves the catalytic addition of bicarbonate to PEP, resulting in the formation of oxaloacetate and inorganic phosphate. This biochemical transformation is essential for efficient carbon assimilation, supporting the growth and metabolic functions of plants adapted to arid and high-temperature environments. Applications of phosphoenolpyruvate carboxylase are primarily within the realm of plant biology and agricultural research. Studies utilize this enzyme to understand plant responses to environmental stresses and to develop crops with improved photosynthesis efficiency and resilience. Moreover, its role in carbon metabolism provides insights into optimizing crop yield and enhancing carbon sequestration in the context of environmental sustainability.