RPS2 of <i>Arabidopsis thaliana</i> : a Leucine-Rich Repeat Class of Plant Disease Resistance Genes
Andrew F. Bent(University of California, Berkeley), Barbara N. Kunkel(University of California, Berkeley), Douglas Dahlbeck(University of California, Berkeley), Kit Brown(University of California, Berkeley), Renate Schmidt(John Innes Centre), Jérôme Giraudat(Institut des Sciences du Végétal), Jeffrey Leung(Institut des Sciences du Végétal), Brian J. Staskawicz(University of California, Berkeley)
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Abstract
Plant disease resistance genes function is highly specific pathogen recognition pathways. PRS2 is a resistance gene of Arabidopsis thaliana that confers resistance against Pseudomonas syringae bacteria that express avirulence gene avrRpt2. RPS2 was isolated by the use of a positional cloning strategy. The derived amino acid sequence of RPS2 contains leucine-rich repeat, membrane-spanning, leucine zipper, and P loop domains. The function of the RPS2 gene product in defense signal transduction is postulated to involve nucleotide triphosphate binding and protein-protein interactions and may also involve the reception of an elicitor produced by the avirulent pathogen.
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