Failure to trigger the autolytic enzymes in minicells of Escherichia coli

Markiewicz, Z; Höltje, J-V

doi:10.1016/0378-1097(92)90670-j

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Failure to trigger the autolytic enzymes in minicells of Escherichia coli

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Markiewicz, Z
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Höltje, J-V
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Citation

Markiewicz, Z., & Höltje, J.-V. (1992). Failure to trigger the autolytic enzymes in minicells of Escherichia coli. FEMS Microbiology Letters, 70(2), 119-123. doi:10.1016/0378-1097(92)90670-j.

Cite as: https://hdl.handle.net/21.11116/0000-000D-F16F-7

Abstract

Minicells from Escherichia coli P678-54 are refractory towards procedures known to induce bacteriolysis of DNA-containing E. coli cells. Although still engaged in murein synthesis, minicells could not be lysed by penicillin G. Likewise, endogenous overproduction of the cloned soluble lytic transglycosylase, the predominant murein hydrolytic activity in E. coli, failed to lyse minicells. Furthermore, induction of the phage MS2 lysis protein, a hydrophobic protein assumed to trigger the autolytic system of the host, did not result in bacteriolysis. It is concluded that the murein hydrolases present in minicells are under a tight cellular control.