Expression of the type VI secretion system 1 component Hcp1 is indirectly repressed by OpaR in Vibrio parahaemolyticus.
Expression of the type VI secretion system 1 component Hcp1 is indirectly repressed by OpaR in Vibrio parahaemolyticus.
复制标题
副溶血弧菌中 VI 型分泌系统 1 组分 Hcp1 的表达被 OpaR 间接抑制
DOI:
10.1100/2012/982140
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发表时间:
2012
影响因子:
--
通讯作者:
Zhou D
中科院分区:
文献类型:
--
作者:
Ma L;Zhang Y;Yan X;Guo L;Wang L;Qiu J;Yang R;Zhou D
The type VI secretion system (T6SS) is bacterial protein injection machinery with roles in virulence, symbiosis, interbacterial interaction, antipathogenesis, and environmental stress responses. There are two T6SS loci, T6SS1 and T6SS2, in the two chromosomes of Vibrio parahaemolyticus, respectively. This work disclosed that the master quorum sensing (QS) regulator OpaR repressed the transcription of hcp1 encoding the structural component Hcp1 of T6SS1 in V. parahaemolyticus, indicating that QS had a negative regulatory action on T6SS1. A single σ 54-dependent promoter was transcribed for hcp1 in V. parahaemolyticus, and its activity was repressed by the OpaR regulator. Since the OpaR protein could not bind to the upstream region of hcp1, OpaR would repress the transcription of hcp1 in an indirect manner.
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影响因子:
30.3
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Jani AJ;Cotter PA
通讯作者:
Cotter PA
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van Helden, J
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van Helden, J
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Makino, K;Oshima, K;Iida, T
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Iida, T
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通讯作者:
Toth, Ian K.