Haem-iron plays a key role in the regulation of the Ess/type VII secretion system of Staphylococcus aureus RN6390.
Haem-iron plays a key role in the regulation of the Ess/type VII secretion system of Staphylococcus aureus RN6390.
复制标题
DOI:
10.1099/mic.0.000579
复制
发表时间:
2017-12
期刊:
影响因子:
--
通讯作者:
Palmer T
中科院分区:
文献类型:
--
作者:
Casabona MG;Kneuper H;Alferes de Lima D;Harkins CP;Zoltner M;Hjerde E;Holden MTG;Palmer T
The Staphylococcus aureus type VII protein secretion system (T7SS) plays important roles in virulence and intra-species competition. Here we show that the T7SS in strain RN6390 is activated by supplementing the growth medium with haemoglobin, and its cofactor haemin (haem B). Transcript analysis and secretion assays suggest that activation by haemin occurs at a transcriptional and a post-translational level. Loss of T7 secretion activity by deletion of essC results in upregulation of genes required for iron acquisition. Taken together these findings suggest that the T7SS plays a role in iron homeostasis in at least some S. aureus strains.
登录
查看更多内容
影响因子:
2.1
作者:
Hurd, Alexander F.;Garcia-Lara, Jorge;Foster, Simon J.
通讯作者:
Foster, Simon J.
影响因子:
3.6
作者:
Abramovitch RB;Rohde KH;Hsu FF;Russell DG
通讯作者:
Russell DG
影响因子:
7
作者:
Holden MT;Hsu LY;Kurt K;Weinert LA;Mather AE;Harris SR;Strommenger B;Layer F;Witte W;de Lencastre H;Skov R;Westh H;Zemlicková H;Coombs G;Kearns AM;Hill RL;Edgeworth J;Gould I;Gant V;Cooke J;Edwards GF;McAdam PR;Templeton KE;McCann A;Zhou Z;Castillo-Ramírez S;Feil EJ;Hudson LO;Enright MC;Balloux F;Aanensen DM;Spratt BG;Fitzgerald JR;Parkhill J;Achtman M;Bentley SD;Nübel U
通讯作者:
Nübel U
影响因子:
3.6
作者:
Elliott SR;Tischler AD
通讯作者:
Tischler AD
影响因子:
10.5
作者:
Hammer ND;Skaar EP
通讯作者:
Skaar EP