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Curr Opin Microbiol. 1998 Dec;1(6):649-55.

Assembly of the VirB transport complex for DNA transfer from Agrobacterium tumefaciens to plant cells.

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Department of Plant and Microbial Biology, 111 Koshland Hall, University of California, Berkeley, CA 94720-3102, USA. jzupan@nature.


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.

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