Mutations that improve the binding of yeast FLP recombinase to its substrate.
Mutations that improve the binding of yeast FLP recombinase to its substrate.
复制标题
提高酵母 FLP 重组酶与其底物结合的突变。
DOI:
10.1093/genetics/118.3.393
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发表时间:
1988
期刊:
影响因子:
3.3
通讯作者:
Youderian,P
中科院分区:
文献类型:
--
作者:
Lebreton,B;Prasad,PV;Jayaram,M;Youderian,P
When yeast FLP recombinase is expressed from the phage lambda PR promoter in a Salmonella host, it cannot efficiently repress an operon controlled by an operator/promoter region that includes a synthetic, target FLP site. On the basis of this phenotype, we have identified four mutant FLP proteins that function as more efficient repressors of such an operon. At least two of these mutant FLP proteins bind better to the FLP site in vivo and in vitro. One mutant changes the presumed active site tyrosine residue of FLP protein to phenylalanine, is blocked in recombination, and binds the FLP site about five-fold better than the wild-type protein. A second mutant protein that functions as a more efficient repressor retains catalytic activity. We conclude that the eukaryotic yeast FLP recombinase, when expressed in a heterologous prokaryotic host, can function as a repressor, and that mutant FLP proteins that bind DNA more tightly may be selected as more efficient repressors.
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影响因子:
3.7
作者:
D. Botstein;R. K. Chan;Carol H. Waddell
通讯作者:
Carol H. Waddell
DOI:
10.1073/pnas.84.8.2189
发表时间:
1987
影响因子:
11.1
作者:
P. Prasad;L. Young;Makkuni Jayaram
通讯作者:
Makkuni Jayaram
影响因子:
3.3
作者:
D. Graña;P. Youderian;M. Susskind
通讯作者:
M. Susskind
影响因子:
10.5
作者:
Bass,S;Sugiono,P;Arvidson,DN;Gunsalus,RP;Youderian,P
通讯作者:
Youderian,P
影响因子:
4.8
作者:
R. Gronostajski;P. Sadowski
通讯作者:
P. Sadowski