Characterization of the Pseudomonas syringae pv. syringae 61 hrpJ and hrpI Genes: Homology of HrpI to a Superfamily of Proteins Associated with Protein Translocation. Hsiou-Chen Huang. Agricultural Biotechnology Laboratories, National Chung-Hsing University, Taichung, Taiwan 40227 Republic of China. Yingxian Xiao(2), Rong-Hwa Lin(1), Yang Lu(2), Steven W. Hutcheson(2), and Alan Collmer(3). (1)Agricultural Biotechnology Laboratories, National Chung-Hsing University, Taichung, Taiwan 40227 Republic of China; (2)Department of Botany, University of Maryland, College Park, MD 20742 U.S.A.; (3)Department of Plant Pathology, Cornell University, Ithaca, NY 14853 U.S.A. MPMI 6:515-520. Accepted 7 April 1993. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1993.

The Pseudomonas syringae pv. syringae 61 hrpJ and hrpI genes were sequenced and found to encode predicted proteins of 37,710 Da and 76,490 Da, respectively. The products of these genes were confirmed by T7 polymerase-dependent expression and sodium dodecyl sulfate-polyacrylamide gel analysis. HrpI belongs to a superfamily of proteins represented by Yersinia pestis LcrD.