The structural basis for activation of plant immunity by bacterial effector protein AvrPto

Weiman Xing, Yan Zou, Qun Liu, Jianing Liu, Xi Luo, Qingqiu Huang, She Chen, Lihuang Zhu, Ruchang Bi, Quan Hao, Jia-Wei Wu, Jian-Min Zhou and Jijie Chai ()
Additional contact information
Weiman Xing: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China
Yan Zou: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China
Qun Liu: Cornell High-Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, USA
Jianing Liu: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China
Xi Luo: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China
Qingqiu Huang: Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
She Chen: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China
Lihuang Zhu: Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
Ruchang Bi: Institute of Biophysics
Quan Hao: Cornell High-Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, USA
Jia-Wei Wu: Tsinghua University, 100084, Beijing, China
Jian-Min Zhou: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China
Jijie Chai: National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China

Nature, 2007, vol. 449, issue 7159, 243-247

Abstract: Plant versus microbe Many microbial plant pathogens have evolved effector proteins that enhance virulence by neutralizing host-plant defences. Plants have countered by developing highly specific resistance proteins that recognize an effector and limit the infection, often by inducing localized cell death. The crystal structure of one of these effectors, AvrPto from Pseudomonas syringae, bound to the Pto kinase that confers resistance to bacterial speck disease in tomato plants has now been determined. The nature of their interaction suggests that Pto may have evolved as a mimic of the virulence target of AvrPto.

Date: 2007
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DOI: 10.1038/nature06109

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