BAENA VACA , Guillermo

La fosfoenolpiruvato carboxilasa (PEPC; EC 4.1.1.31) es una enzima citosólica multifuncional que está implicada en procesos clave del metabolismo del carbono y del nitrógeno. Esta enzima está regulada por distintas modificaciones postraduccionales (PTMs), las cuales modifican la enzima y modulan su actividad de forma compleja. En cuanto a su...

Three plant-type phosphoenolpyruvate carboxylase (PPC1 to PPC3) and two phosphoenolpyruvate carboxylase kinase (PPCKs: PPCK1 and 2) genes are present in the Arabidopsis thaliana genome. In seeds, all PPC genes were found to be expressed. Examination of individual ppc mutants showed little reduction of PEPC protein and global activity, with the...

Phosphoenolpyruvate carboxylase (PEPC) is an enzyme with key roles in carbon and nitrogen metabolisms. The mechanisms that control enzyme stability and turnover are not well known. This paper investigates the degradation of PEPC via selective autophagy, including the role of the monoubiquitination of the enzyme in this process. In Arabidopsis,...

Phosphoenolpyruvate carboxylase (PEPC) is a carboxylating enzyme with important roles in plant metabo-lism. Most studies in C4plants have focused on photosynthetic PEPC, but less is known about non-photosynthetic PEPC isozymes, especially with respect to their physiological functions. In this work, weanalyzed the precise roles of the sorghum...