Download MendeleyCrystallographic and Molecular Dynamics Analysis of Loop Motions Unmasking the Peptidoglycan-Binding Site in Stator Protein MotB of Flagellar Motor
Reboul, C.F., Andrews, D.A., Nahar, M.F., Buckle, A.M., Roujeinikova, A.(2011) PLoS One 6: e18981-e18981
- PubMed: 21533052
- DOI: https://doi.org/10.1371/journal.pone.0018981
- Primary Citation of Related Structures:
3IMP - PubMed Abstract:
The C-terminal domain of MotB (MotB-C) shows high sequence similarity to outer membrane protein A and related peptidoglycan (PG)-binding proteins. It is believed to anchor the power-generating MotA/MotB stator unit of the bacterial flagellar motor to the peptidoglycan layer of the cell wall. We previously reported the first crystal structure of this domain and made a puzzling observation that all conserved residues that are thought to be essential for PG recognition are buried and inaccessible in the crystal structure. In this study, we tested a hypothesis that peptidoglycan binding is preceded by, or accompanied by, some structural reorganization that exposes the key conserved residues.
Organizational Affiliation:
Department of Microbiology and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.
