VirB2 is a processed pilin-like protein encoded by the Agrobacterium tumefaciens Ti plasmid
نویسندگان
چکیده
منابع مشابه
VirB2 is a processed pilin-like protein encoded by the Agrobacterium tumefaciens Ti plasmid.
The mechanism of DNA transmission between distinct organisms has remained a subject of long-standing interest. Agrobacterium tumefaciens mediates the transfer of plant oncogenes in the form of a 25-kb T-DNA sector of a resident Ti plasmid. A growing body of evidence leading to the elucidation of the mechanism involved in T-DNA transfer comes from studies on the vir genes contained in six major ...
متن کاملPlant proteins that interact with VirB2, the Agrobacterium tumefaciens pilin protein, mediate plant transformation.
Agrobacterium tumefaciens uses a type IV secretion system (T4SS) to transfer T-DNA and virulence proteins to plants. The T4SS is composed of two major structural components: the T-pilus and a membrane-associated complex that is responsible for translocating substrates across both bacterial membranes. VirB2 protein is the major component of the T-pilus. We used the C-terminal-processed portion o...
متن کاملProcessed VirB2 is the major subunit of the promiscuous pilus of Agrobacterium tumefaciens.
Previous studies have implicated the obligatory requirement for the vir regulon (or "virulon") of the Ti plasmid for the transfer of oncogenes from Agrobacterium tumefaciens to plant cells. The machinery used in this horizontal gene transfer has been long thought to be a transformation or conjugative delivery system. Based on recent protein sequence comparisons, the proteins encoded by the virB...
متن کاملComplementation analysis of Agrobacterium tumefaciens Ti plasmid mutations affecting oncogenicity.
A wide host range cosmid vector has been constructed by insertion of the lambda cos site into the plasmid pRK2501. This cosmid, which is maintained in Agrobacterium tumefaciens and is compatible with the Ti plasmid, has been used to make a clone bank of the A. tumefaciens pTiA6 plasmid. Several pTiA6 cosmids have been used to complement Tn5-induced Ti plasmid mutations. Five avirulent mutations...
متن کاملTi plasmid-controlled chromosome transfer in Agrobacterium tumefaciens.
In octopine-type A. tumefaciens R10, transfer of chromosomal arginine degradation genes (arc genes) was observed under conditions in which Ti plasmid transfer took place. However, transconjugants that had acquired the arc genes but not the Ti plasmid were recovered. During this process, several other chromosomal genes, such as genes encoding phage resistances or genes complementing a galactose ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1996
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.178.19.5706-5711.1996