Altered-function mutations of the transcriptional regulatory gene virG of Agrobacterium tumefaciens
Altered-function mutations of the transcriptional regulatory gene virG of Agrobacterium tumefaciens
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根癌农杆菌转录调控基因virG的功能突变
DOI:
10.1128/jb.174.21.7040-7043.1992
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发表时间:
1992
影响因子:
3.2
通讯作者:
S. C. Winans
中科院分区:
文献类型:
--
作者:
D. Han;C. Y. Chen;Y. F. Chen;S. C. Winans
Three point mutations were isolated in the Agrobacterium tumefaciens virG gene by screening for vir gene expression in the absence of added phenolic inducing compounds. All three mutations were localized in the predicted amino-terminal phosphoryl receiver domain of the protein. One mutant (N54D) bypasses the requirement for VirA and phenolic inducers both for transcriptional activation of all tested vir promoters and for plant tumorigenesis. This mutant also activates vir gene expression efficiently at neutral pH, indicating that the step in induction that is normally stimulated by acid pH occurs before or during VirG phosphorylation. The other two mutants (M13T and H15R) require VirA for activity but are sensitized to low levels of inducing stimuli.
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DOI:
10.2210/pdb3chy/pdb
发表时间:
1993-01
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
K. Volz;Philip Matsumura
通讯作者:
K. Volz;Philip Matsumura
影响因子:
11.4
作者:
LEROUX, B;YANOFSKY, MF;NESTER, EW
通讯作者:
NESTER, EW
DOI:
10.1073/pnas.83.21.8278
发表时间:
1986
影响因子:
11.1
作者:
Winans,SC;Ebert,PR;Stachel,SE;Gordon,MP;Nester,EW
通讯作者:
Nester,EW
DOI:
10.1073/pnas.87.17.6708
发表时间:
1990-09-01
影响因子:
11.1
作者:
CANGELOSI, GA;ANKENBAUER, RG;NESTER, EW
通讯作者:
NESTER, EW