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Title: Crystal Structures of the SpoIID Lytic Transglycosylases Essential for Bacterial Sporulation

Journal Article · · Journal of Biological Chemistry

Bacterial spores are the most resistant form of life known on Earth and represent a serious problem for (i) bioterrorism attack, (ii) horizontal transmission of microbial pathogens in the community, and (iii) persistence in patients and in a nosocomial environment. Stage II sporulation proteinD(SpoIID) is a lytic transglycosylase (LT) essential for sporulation. The LT superfamily is a potential drug target because it is active in essential bacterial processes involving the peptidoglycan, which is unique to bacteria. However, the absence of structural information for the sporulation-specific LT enzymes has hindered mechanistic understanding of SpoIID. In this paper, we report the first crystal structures with and without ligands of the SpoIID family from two community relevant spore-forming pathogens, Bacillus anthracis and Clostridium difficile. The structures allow us to visualize the overall architecture, characterize the substrate recognition model, identify critical residues, and provide the structural basis for catalysis by this new family of enzymes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Institutes of Health (NIH); National Institute of Allergy and Infectious Diseases (NIAID); USDOE Office of Science (SC)
Grant/Contract Number:
HHSN272200700058C; HHSN272201200026C; AC02-06CH11357
OSTI ID:
1328045
Journal Information:
Journal of Biological Chemistry, Vol. 291, Issue 29; ISSN 0021-9258
Publisher:
American Society for Biochemistry and Molecular BiologyCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (6)

Acidogenesis, solventogenesis, metabolic stress response and life cycle changes in Clostridium beijerinckii NRRL B-598 at the transcriptomic level journal February 2019
Lytic transglycosylases: concinnity in concision of the bacterial cell wall journal June 2017
Differential requirements for conserved peptidoglycan remodeling enzymes during Clostridioides difficile spore formation: Regulation of Clostridium difficile Engulfment journal October 2018
Peptidoglycan degradation machinery in Clostridium difficile forespore engulfment: Engulfment machinery in C. difficile journal October 2018
The engulfasome in C. difficile: Variations on protein machineries journal December 2019
A SpoIID Homolog Cleaves Glycan Strands at the Chlamydial Division Septum journal August 2019