Nopaline-type Ti plasmid of Agrobacterium encodes a VirF-like functional F-box protein
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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 کاملThe virD operon of Agrobacterium tumefaciens Ti plasmid encodes a DNA-relaxing enzyme.
The virD locus of Agrobacterium tumefaciens Ti plasmid encodes functions necessary for endonucleolytic cleavage of transferred DNA (T-DNA) prior to its transfer to plant cells. For the overproduction of the VIRD proteins in Escherichia coli a tac-virD operon fusion was constructed. A significant increase in the accumulation of VIRD proteins was observed in a lon protease-deficient E. coli host....
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 کاملShort direct repeats flank the T-DNA on a nopaline Ti plasmid.
Crown gall disease results from the insertion of a segment of the Agrobacterium Ti plasmid, called T-DNA, into host plant nuclear DNA. We have subjected to sequence analysis the border regions of pTi T37 (ends of T-DNA) and one left T-DNA/plant DNA border fragment isolated from BT37 tobacco teratoma by molecular cloning. These sequence studies, taken together with published sequence of a right ...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2015
ISSN: 2045-2322
DOI: 10.1038/srep16610