Regulation of the pAD1 sex pheromone response of Enterococcus faecalis by direct interaction between the cAD1 peptide mating signal and the negatively regulating, DNA-binding TraA protein.
Regulation of the pAD1 sex pheromone response of Enterococcus faecalis by direct interaction between the cAD1 peptide mating signal and the negatively regulating, DNA-binding TraA protein.
复制标题
通过 cAD1 肽交配信号和负调节 DNA 结合 TraA 蛋白之间的直接相互作用来调节粪肠球菌的 pAD1 性信息素反应。
DOI:
10.1073/pnas.95.11.6430
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发表时间:
1998
影响因子:
11.1
通讯作者:
Clewell,DB
中科院分区:
文献类型:
--
作者:
Fujimoto,S;Clewell,DB
TheEnterococcus faecalisconjugative plasmid pAD1 (60 kb) encodes a mating response to the recipient-produced peptide sex pheromone cAD1. The response involves two key plasmid-encoded regulatory proteins: TraE1, which positively regulates all or most structural genes relating to conjugation, and TraA, which binds DNA and negatively regulates expression oftraE1. In vitrostudies that included development of a DNA-associated protein-tag affinity chromatography technique showed that TraA (37.9 kDa) binds directly to cAD1 near its carboxyl-terminal end and, as a consequence, loses its affinity for DNA. Analyses of genetically modified TraA proteins indicated that truncations within the carboxyl-terminal 9 residues significantly affected the specificity of peptide-directed association/dissociation of DNA. The data support earlier observations that transposon insertions near the 3′ end of traA eliminated the ability of cells to respond to cAD1.
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DOI:
10.1073/pnas.89.19.9020
发表时间:
1992
影响因子:
11.1
作者:
Chung,JW;Dunny,GM
通讯作者:
Dunny,GM
影响因子:
3.6
作者:
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通讯作者:
WIRTH, R
影响因子:
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作者:
Stevens,SX;Jensen,HG;Jett,BD;Gilmore,MS
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Gilmore,MS
影响因子:
2.6
作者:
Pontius,LT;Clewell,DB
通讯作者:
Clewell,DB
影响因子:
2.6
作者:
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