The EAL domain protein YciR acts as a trigger enzyme in a c-di-GMP signalling cascade in E. coli biofilm control.
The EAL domain protein YciR acts as a trigger enzyme in a c-di-GMP signalling cascade in E. coli biofilm control.
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EAL结构域蛋白YCIR充当大肠杆菌生物膜对照中C-DI-GMP信号级联反应中的触发酶。
DOI:
10.1038/emboj.2013.120
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发表时间:
2013-07-17
期刊:
影响因子:
11.4
通讯作者:
Hengge, Regine
中科院分区:
文献类型:
--
作者:
Lindenberg, Sandra;Klauck, Gisela;Pesavento, Christina;Klauck, Eberhard;Hengge, Regine
C-di-GMP—which is produced by diguanylate cyclases (DGC) and degraded by specific phosphodiesterases (PDEs)—is a ubiquitous second messenger in bacterial biofilm formation. In Escherichia coli, several DGCs (YegE, YdaM) and PDEs (YhjH, YciR) and the MerR-like transcription factor MlrA regulate the transcription of csgD, which encodes a biofilm regulator essential for producing amyloid curli fibres of the biofilm matrix. Here, we demonstrate that this system operates as a signalling cascade, in which c-di-GMP controlled by the DGC/PDE pair YegE/YhjH (module I) regulates the activity of the YdaM/YciR pair (module II). Via multiple direct interactions, the two module II proteins form a signalling complex with MlrA. YciR acts as a connector between modules I and II and functions as a trigger enzyme: its direct inhibition of the DGC YdaM is relieved when it binds and degrades c-di-GMP generated by module I. As a consequence, YdaM then generates c-di-GMP and—by direct and specific interaction—activates MlrA to stimulate csgD transcription. Trigger enzymes may represent a general principle in local c-di-GMP signalling.
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影响因子:
4.5
作者:
Girgis, Hany S.;Liu, Yirchung;Ryu, William S.;Tavazoie, Saeed
通讯作者:
Tavazoie, Saeed
影响因子:
4.2
作者:
Galperin MY
通讯作者:
Galperin MY
影响因子:
5.1
作者:
Bobrov, Alexander G.;Kirillina, Olga;Perry, Robert D.
通讯作者:
Perry, Robert D.
DOI:
10.1073/pnas.96.18.10412
发表时间:
1999-08-31
影响因子:
11.1
作者:
Alén, C;Sonenshein, AL
通讯作者:
Sonenshein, AL
影响因子:
5.8
作者:
Amikam, D;Galperin, MY
通讯作者:
Galperin, MY