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Assembly of the VirB transport complex for DNA transfer from Agrobacterium tumefaciens to plant cells
J R Zupan1, D Ward, P Zambryski
1Department of Plant and Microbial Biology, 111 Koshland Hall, University of California, Berkeley, CA 94720-3102, USA. jzupan@nature. berkeley.edu
Current Opinion in Microbiology
|March 6, 1999
Abstract:
The VirB transporter is a type IV secretion system that mediates the genetic transformation of plant cells by Agrobacterium tumefaciens. Assembly of this transporter depends on, first, formation of a VirB7/B9 complex that stabilizes many of the VirB proteins, second, formation of a virulence-specific pilus composed primarily of VirB2 and VirB5, and, third, post-translational processing of VirB1 and VirB2.