Cortex synthesis during Bacillus subtilis sporulation depends on the transpeptidase activity of SpoVD.

Research output: Contribution to journalLetter

Abstract

The nonessential process of peptidoglycan synthesis during Bacillus subtilis sporulation is one model to study bacterial cell wall biogenesis. SpoVD is a class B high-molecular weight penicillin-binding protein that is specific for sporulation. Strains lacking this protein produce spores without the peptidoglycan cortex layer and are heat-sensitive. The detailed functions of the four different protein domains of the SpoVD protein are unknown and the observed phenotype of strains lacking the entire protein could be an indirect defect. We therefore inactivated the transpeptidase domain by substitution of the active site serine residue. Our results demonstrate that endospore cortex synthesis depends on the transpeptidase activity of SpoVD specifically. This article is protected by copyright. All rights reserved.

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Subject classification (UKÄ) – MANDATORY

  • Biological Sciences

Keywords

  • penicillin-binding protein, peptidoglycan, endospore.
Original languageEnglish
Pages (from-to)65-72
JournalFEMS Microbiology Letters
Volume346
Issue number1
Publication statusPublished - 2013
Publication categoryResearch
Peer-reviewedYes