Protein Information

Name PEPC
Synonyms PEPC; peptidase C; BLM hydrolase; BMH; Bleomycin hydrolase; peptidase Cs; PEPC; hydrolase H…

Compound Information

Name abscisic acid
CAS

Reference List

PubMed Abstract RScore(About this table)
18753284 Feria AB, Alvarez R, Cochereau L, Vidal J, Garcia-Maurino S, Echevarria C: Regulation of phosphoenolpyruvate carboxylase phosphorylation by metabolites and abscisic acid during the development and germination of barley seeds. Plant Physiol. 2008 Oct;148(2):761-74. Epub 2008 Aug 27.

In addition, when fed exogenously to imbibing seeds, abscisic acid significantly increased PEPC kinase activity.
65(0,2,2,5) Details
17618627 Monreal JA, Feria AB, Vinardell JM, Vidal J, Echevarria C, Garcia-Maurino S: ABA modulates the degradation of phosphoenolpyruvate carboxylase kinase in sorghum leaves. FEBS Lett. 2007 Jul 24;581(18):3468-72. Epub 2007 Jun 29.

Salt stresses strongly enhance the phosphoenolpyruvate carboxylase kinase (PEPC-k) activity of sorghum leaves.
This work shows that (1) abscisic acid (ABA) increased the rise in kinase activity in illuminated leaf disks of the non-stressed plant, (2) ABA decreased the disappearance of PEPC-k activity in the dark, (3) two PEPC-k genes expressed in sorghum leaves, PPCK1 and PPCK2, were not up-regulated by the phytohormone and, (4) ABA effects were mimicked by MG132, a powerful inhibitor of the ubiquitin-proteasome pathway.
2(0,0,0,2) Details
15272872 Testerink C, Dekker HL, Lim ZY, Johns MK, Holmes AB, Koster CG, Ktistakis NT, Munnik T: Isolation and identification of phosphatidic acid targets from plants. Plant J. 2004 Aug;39(4):527-36.

In plants, it is implicated in various stress-signalling pathways and is formed in response to wounding, osmotic stress, cold stress, pathogen elicitors, Nod factors, ethylene and abscisic acid.
As an example, the binding of one major PA-binding protein, phosphoenolpyruvate carboxylase (PEPC), was characterized further.
2(0,0,0,2) Details
17692079 Radchuk R, Radchuk V, Gotz KP, Weichert H, Richter A, Emery RJ, Weschke W, Weber H: Ectopic expression of phosphoenolpyruvate carboxylase in Vicia narbonensis seeds: effects of improved nutrient status on seed maturation and transcriptional regulatory networks. Plant J. 2007 Sep;51(5):819-39. Epub 2007 Aug 13.

Activation of stress tolerance genes indicates partial overlap between nutrient, stress and abscisic acid (ABA) signals, indicating a common interacting or regulatory mechanism between nutrients, stress and ABA.
We recently showed that phosphoenolpyruvate carboxylase (PEPC) overexpression in Vicia narbonensis seeds alters seed metabolism and channels carbon into organic acids, resulting in greater seed storage capacity and increased protein content.
2(0,0,0,2) Details
15723826 He P, Osaki M, Takebe M, Shinano T, Wasaki J: Endogenous hormones and expression of senescence-related genes in different senescent types of maize. J Exp Bot. 2005 Apr;56(414):1117-28. Epub 2005 Feb 21.

Since the accumulation of the mRNAs for Rubisco small subunit (rbcS), phosphoenolpyruvate carboxylase (PEPC), and SOD peaked after Chl content and P (sat) had reached their maxima, it is speculated that when leaf senescence is initiated, Chl contents decrease first, followed by the degradation of the photosynthetic apparatus and of photosynthesis-related enzymes.
Levels of cytokinins and abscisic acid (ABA) and the expression of senescence-related genes were investigated in two maize (Zea mays L.) cultivars of different senescence type, cv.
1(0,0,0,1) Details