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Two novel protein kinase genes,OsMSRPK1 andOsMSURPK2, are regulated by diverse environmental stresses in rice

한국식물학회지 2006년 49권 3호 p.247 ~ 256
Lee Mi-Ok, Choi Pil-Gyu, 김정아, Jung Young-Ho, Jung Seung-Hee, Kim So-Hee, 김진원, 이상규, 전종성, Randeep Rakwal, Agrawal Ganesh Kumar, 좌남수,
소속 상세정보
 ( Lee Mi-Ok ) - Sejong University College of Natural Science Department of Molecular Biology
 ( Choi Pil-Gyu ) - Sejong University College of Natural Science Department of Molecular Biology
김정아 ( Kim Jung-A ) - Sejong University College of Natural Science Department of Molecular Biology
 ( Jung Young-Ho ) - Sejong University College of Natural Science Department of Molecular Biology
 ( Jung Seung-Hee ) - Sejong University College of Natural Science Department of Molecular Biology
 ( Kim So-Hee ) - Sejong University College of Natural Science Department of Molecular Biology
김진원 ( Kim Jin-Won ) - University of Seoul Department of Environmental Horticulture
이상규 ( Lee Sang-Kyu ) - Kyung Hee University Graduate School of Biotechnology
전종성 ( Jeon Jong-Seong ) - Kyung Hee University Graduate School of Biotechnology
 ( Randeep Rakwal ) - National Institute of Advanced Industrial Science and Technology Human Stress Signal Research Center
 ( Agrawal Ganesh Kumar ) - Research Laboratory for Biotechnology and Biochemistry
좌남수 ( Jwa Nam-Soo ) - Sejong University College of Natural Science Department of Molecular Biology

Abstract


Two novel rice (Oryza sativa L.) protein kinase (PK) genes have been isolated.OsMSRPK1 andOsMSURPK2, which most likely exist as single-copy genes in the rice genome, encode 693 and S03 amino acids polypeptide, respectively, and have the serine/threonine kinase domain of cyclin dependent protein kinase (OsMSRPK1), or the serine/threonine kinase domain and NAF domain (OsMSURPK2). Steady-state mRNA analyses of these PKs, with constitutive expression in the leaves of two-week-old seedlings, revealed thatOsMSRPK1 is up-regulated upon exposure to environmental stresses, whereasOsMSVRPK2 is down-regulated by these same stresses. Furthermore, the two PKs are developmentally regulated in both young and mature rice plants, including in the panicles. These results strongly suggest that the genes have roles in both plant development and in their defense/stress-signaling pathways.

키워드

defense/stress signaling pathway; protein kinase; rice

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