VirD proteins of Agrobacterium tumefaciens are required for the formation of a covalent DNA--protein complex at the 5' terminus of T-strand molecules.

@article{HerreraEstrella1988VirDPO,
  title={VirD proteins of Agrobacterium tumefaciens are required for the formation of a covalent DNA--protein complex at the 5' terminus of T-strand molecules.},
  author={Alfredo Herrera-Estrella and Zao Ming Chen and Marc C E Van Montagu and Kan Wang},
  journal={The EMBO journal},
  year={1988},
  volume={7 13},
  pages={4055-62}
}
The T-DNA transfer process of Agrobacterium tumefaciens is activated by the induction of the Ti plasmid virulence (vir) loci by plant signal molecules such as acetosyringone. Upon initiation of the T-DNA transfer process, site-specific nicks occur at the 25-bp border sequences. This cleavage leads to the generation of a free, linear ssT-DNA molecule which is bound by sequence non-specific VirE proteins. Here we present evidence for the involvement of other acetosyringone-induced proteins in the… CONTINUE READING

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