Shindo Takayuki, Van der Hoorn Renier A L
Plant Chemetics Laboratory, Max Planck Institute for Plant Breeding Research, Carl-von-Linne Weg 10, 50829 Cologne, Germany.
Mol Plant Pathol. 2008 Jan;9(1):119-25. doi: 10.1111/j.1364-3703.2007.00439.x.
Papain-like cysteine proteases (PLCPs) play crucial roles in plant-pathogen/pest interactions. During these parasitic interactions, PLCPs act on non-self substrates, provoking the selection of counteracting inhibitors and other means to evade proteolysis. We review examples of PLCPs acting on molecular battlefields in the extracellular space, plant cytoplasm and herbivore gut. Examples are maize Mir1 (Maize inbred resistance 1), tomato Rcr3 (Required for Cladosporium resistance-3), Pseudomonas AvrRpt2 and AurPphB, insect DvCAL1 (Diabrotica virgifera cathepsin L-like protease-1) and nematode MiCpl1 (Meloidogyne incognita cathepsin L-like protease 1). The data suggest that PLCPs cleave specific proteins and that their translocation, activation and inhibition of PLCPs are tightly regulated.
木瓜蛋白酶样半胱氨酸蛋白酶(PLCPs)在植物与病原体/害虫的相互作用中发挥着关键作用。在这些寄生相互作用过程中,PLCPs作用于非自身底物,促使对抗性抑制剂的选择以及其他逃避蛋白水解的方式。我们综述了PLCPs在细胞外空间、植物细胞质和食草动物肠道等分子战场中发挥作用的实例。例如玉米的Mir1(玉米自交系抗性1)、番茄的Rcr3(抗枝孢属菌-3所需蛋白)、丁香假单胞菌的AvrRpt2和AurPphB、昆虫的DvCAL1(玉米根萤叶甲组织蛋白酶L样蛋白酶-1)以及线虫的MiCpl1(南方根结线虫组织蛋白酶L样蛋白酶1)。数据表明,PLCPs可切割特定蛋白质,并且它们的转运、激活及对PLCPs的抑制受到严格调控。