doi: 10.1016/0006-291x(84)91291-9.
Regulation of C4 photosynthesis catalytic dephosphorylation and Pi-mediated activation of pyruvate Pi dikinase
- PMID: 6329174
- DOI: 10.1016/0006-291x(84)91291-9
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Regulation of C4 photosynthesis catalytic dephosphorylation and Pi-mediated activation of pyruvate Pi dikinase
Biochem Biophys Res Commun.
.
Abstract
In experiments designed to test the reversibility of ADP-dependent inactivation and Pi-dependent activation of pyruvate, Pi dikinase , it was found that the preferred substrate for Pi dependent activation is the catalytically non-phosphorylated form of pyruvate, Pi dikinase . Only the second of the two partial reactions catalysed by pyruvate, Pi dikinase is inhibited when pyruvate, Pi dikinase is inactivated by ADP-dependent phosphorylation. Neither ADP-dependent inactivation nor Pi-dependent activation reactions were found to be reversible.
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