Regulation of pyruvate, orthophosphate dikinase by ADP-/Pi-dependent reversible phosphorylation in C3 and C4 plants

被引：47

作者：

Chastain, CJ ^{[1
]}

Chollet, R

机构：

[1] Minnesota State Univ, Dept Biol, Moorhead, MN 56563 USA

[2] Univ Nebraska, George W Beadle Ctr, Dept Biochem, Lincoln, NE 68588 USA

来源：

PLANT PHYSIOLOGY AND BIOCHEMISTRY | 2003年 / 41卷 / 6-7期

基金：

美国国家科学基金会;

关键词：

C-4; photosynthesis; C-3; plant; PPDK; PPDK regulatory protein; protein phosphorylation/dephosphorylation; pyruvate; Pi dikinase; RP;

D O I：

10.1016/S0981-9428(03)00065-2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Pyruvate, orthophosphate dikinase (PPDK, E.C. 2.7.9.1) is a cardinal carbon-assimilating, stromal enzyme of the C, photosynthetic pathway. Like several other photosynthetic pathway enzymes, its activity is strictly and reversibly regulated by light. This regulation is conferred by the PPDK regulatory protein (RP), a bifunctional protein kinase/phosphatase that catalyzes the ADP-/Pi-dependent, reversible phosphorylation of an active-site threonine residue. In this minireview, we highlight how plastidic PPDK in leaves and developing seeds of C-3 plants is regulated in an identical manner as C-4 PPDK via a putative C-3-RP isoform. Additionally, we also detail the progress in research concerning C-4 RP. since this highly unusual regulatory enzyme was last reviewed nearly two decades ago. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.

引用

页码：523 / 532

页数：10

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