EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Activation of maize (Zea mays L.) phosphoenolpyruvate carboxylase by glucose-6-phosphate and glycine: effects of pH and Mg2+



Activation of maize (Zea mays L.) phosphoenolpyruvate carboxylase by glucose-6-phosphate and glycine: effects of pH and Mg2+



Photosynthetica 19(2): 177-182



The PEP carboxylase (PEPC) I isoenzyme from 3-week-old maize CE-205 S plants was strongly activated by glucose-6-phosphate and glycine but PEPC II activation was much less. The PEPC I activations were pH-dependent and unaffected by Mg2+ concn. Most activation was observed at pH 7.0. Typical hyperbolas were obtained for glycine activation over the entire pH range tested (7.0-9.0) and for glucose-6-phosphate activation at pH >8.1.

(PDF emailed within 1 workday: $29.90)

Accession: 001292831

Download citation: RISBibTeXText



Related references

Activation of maize zea mays phosphoenolpyruvate carboxylase by glucose 6 phosphate and glycine effects of ph and magnesium. Photosynthetica (Prague) 19(2): 177-182, 1985

Re-examination of the roles of PEP and Mg2+ in the reaction catalysed by the phosphorylated and non-phosphorylated forms of phosphoenolpyruvate carboxylase from leaves of Zea mays. Effects of the activators glucose 6-phosphate and glycine. Biochemical Journal 332: 633-642, 1998

Studies on plant phosphoenolpyruvate carboxylase. VI. Stabilizing effect of glucose-6-phosphate and glycine to sorghum leaf PEP carboxylase. Acta Phytophysiologia Sinica 8(1): 9-16, 1982

Regulation of maize (Zea mays L.) phosphoenolpyruvate carboxylase by glycine, pyruvate, and SO32- ions. Photosynthetica 17(3): 386-390, 1983

Desensitization to glucose 6-phosphate of phosphoenolpyruvate carboxylase from maize leaves by pyridoxal 5'-phosphate. Biochimica et Biophysica Acta 1337(2): 207-216, 1997

Inactivation of essential lysine residues in phosphoenolpyruvate carboxylase from maize zea mays l. leaves by pyridoxal 5' phosphate. Photosynthetica (Prague) 22(1): 83-89, 1988

On the molecular mechanism of maize zea mays phosphoenolpyruvate carboxylase activation by thiol compounds. Plant Physiology (Rockville) 75(4): 983-987, 1984

Chemical modification of the allosteric glucose-6-phosphate binding site of phosphoenolpyruvate carboxylase from maize leaves by pyridoxal 5-phosphate. Plant Physiology (Rockville) 105(1 SUPPL ): 124, 1994

The effects of some adenine and guanine nucleotides on phosphoenolpyruvate carboxylase isolated from germinating seeds of maize zea mays. Biologia (Bratislava) 44(12): 1171-1176, 1989

Use of 3,4-14C carbon isotope glucose to assess in vivo competition for phosphoenolpyruvate between phosphoenolpyruvate carboxylase and pyruvate kinase in developing soybean seeds Glycine max. p. 1982

Maize phosphoenolpyruvate carboxylase. Mutations at the putative binding site for glucose 6-phosphate caused desensitization and abolished responsiveness to regulatory phosphorylation. Journal of Biological Chemistry 280(12): 11798-11806, 2005

The Interactive Effects of pH, L-Malate, and Glucose-6-Phosphate on Guard-Cell Phosphoenolpyruvate Carboxylase. Plant Physiology 103(4): 1189-1194, 1993

Ribulose bis-phosphate carboxylase and phosphoenolpyruvate carboxylase activities, chlorophyll and protein contents of two maize hybrids under water stress. Maydica 35(1): 67-72, 1990

Structure of phosphoenolpyruvate carboxylase from maize zea mays leaves. Febs Letters 205(1): 32-34, 1986