The product of the virB4 gene of Agrobacterium tumefaciens promotes accumulation of VirB3 protein.

@article{Jones1994ThePO,
  title={The product of the virB4 gene of Agrobacterium tumefaciens promotes accumulation of VirB3 protein.},
  author={Andrea L. Jones and Ken Shirasu and Clarence I. Kado},
  journal={Journal of bacteriology},
  year={1994},
  volume={176 17},
  pages={5255-61}
}
The process of T-DNA transfer from Agrobacterium tumefaciens to plant cells is thought to involve passage of a DNA-protein complex through a specialized structure in the bacterial membrane. The virB operon of A. tumefaciens encodes 11 proteins, of which 9 are known to be located in the membranes and 10 have been shown to be essential for virulence. Sequence… CONTINUE READING