Role of the murein precursor UDP-N-acetylmuramyl-L-Ala-gamma-D-Glu-meso-diaminopimelic acid-D-Ala-D-Ala in repression of beta-lactamase induction in cell division mutants.

Abstract excerpt

Certain beta-lactam antibiotics induce the chromosomal ampC beta-lactamase of many gram-negative bacteria. The natural inducer, though not yet unequivocally identified, is a cell wall breakdown product which enters the cell via the AmpG permease component of the murein recycling pathway. Surprisingly, it has been reported that beta-lactamase is not induced by cefoxitin in the absence of FtsZ, which is required...

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