SosA inhibits cell division in Staphylococcus aureus in response to DNA damage
SosA inhibits cell division in Staphylococcus aureus in response to DNA damage
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SosA 抑制金黄色葡萄球菌响应 DNA 损伤的细胞分裂
DOI:
10.1101/364299
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Bojer M
中科院分区:
文献类型:
--
作者:
Bojer M
Inhibition of cell division is critical for viability under DNA‐damaging conditions. DNA damage induces the SOS response that in bacteria inhibits cell division while repairs are being made. In coccoids, such as the human pathogen,Staphylococcus aureus, this process remains poorly studied. Here, we identify SosA as the staphylococcal SOS‐induced cell division inhibitor. Overproduction of SosA inhibits cell division, whilesosAinactivation sensitizes cells to genotoxic stress. SosA is a small, predicted membrane protein with an extracellular C‐terminal domain in which point mutation of residues that are conserved in staphylococci and major truncations abolished the inhibitory activity. In contrast, a minor truncation led to SosA accumulation and a strong cell division inhibitory activity, phenotypically similar to expression of wild‐type SosA in a CtpA membrane protease mutant. This suggests that the extracellular C‐terminus of SosA is required both for cell division inhibition and for turnover of the protein. Microscopy analysis revealed that SosA halts cell division and synchronizes the cell population at a point where division proteins such as FtsZ and EzrA are localized at midcell, and the septum formation is initiated but unable to progress to closure. Thus, our findings show that SosA is central in cell division regulation in staphylococci.
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DOI:
10.1016/j.tube.2011.10.022
发表时间:
2011
期刊:
Tuberculosis (Edinburgh, Scotland)
影响因子:
--
作者:
Vadrevu,IndumathiS;Lofton,Hava;Sarva,Krishna;Blasczyk,Ewelina;Plocinska,Renata;Chinnaswamy,Jagannath;Madiraju,Murty;Rajagopalan,Malini
通讯作者:
Rajagopalan,Malini
DOI:
10.1007/978-1-4939-7033-9_10
发表时间:
2017-01-01
期刊:
BACTERIAL PROTEIN SECRETION SYSTEMS
影响因子:
--
作者:
Karimova, Gouzel;Ladant, Daniel
通讯作者:
Ladant, Daniel
影响因子:
6.4
作者:
Fey PD;Endres JL;Yajjala VK;Widhelm TJ;Boissy RJ;Bose JL;Bayles KW
通讯作者:
Bayles KW
DOI:
10.1073/pnas.95.6.2885
发表时间:
1998-03-17
影响因子:
11.1
作者:
Mukherjee, A;Cao, CN;Lutkenhaus, J
通讯作者:
Lutkenhaus, J
影响因子:
2.8
作者:
Carroll, Ronan K.;Rivera, Frances E.;Shaw, Lindsey N.
通讯作者:
Shaw, Lindsey N.