التفاصيل البيبلوغرافية
| العنوان: |
The LysR-type transcriptional regulator, CidR, regulates stationary phase cell death in Staphylococcus aureus. |
| المؤلفون: |
Chaudhari, Sujata S., Thomas, Vinai C., Sadykov, Marat R., Bose, Jeffrey L., Ahn, Daniel J., Zimmerman, Matthew C., Bayles, Kenneth W. |
| المصدر: |
Molecular Microbiology; Sep2016, Vol. 101 Issue 6, p942-953, 12p, 2 Diagrams, 3 Graphs |
| مصطلحات موضوعية: |
STAPHYLOCOCCUS aureus, TRANSCRIPTION factors, CELL death, ACETOIN, ACETATES |
| مستخلص: |
The Staphylococcus aureus LysR-type transcriptional regulator, CidR, activates the expression of two operons including cidABC and alsSD that display pro- and anti-death functions, respectively. Although several investigations have focused on the functions of different genes associated with these operons, the collective role of the CidR regulon in staphylococcal physiology is not clearly understood. Here we reveal that the primary role of this regulon is to limit acetate-dependent potentiation of cell death in staphylococcal populations. Although both CidB and CidC promote acetate generation and cell death, the CidR-dependent co-activation of CidA and AlsSD counters the effects of CidBC by redirecting intracellular carbon flux towards acetoin formation. From a mechanistic standpoint, we demonstrate that CidB is necessary for full activation of CidC, whereas CidA limits the abundance of CidC in the cell. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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