6SCS
Cell Division Protein SepF in complex with C-terminal domain of FtsZ
Summary for 6SCS
Entry DOI | 10.2210/pdb6scs/pdb |
Descriptor | Cell division protein SepF, Cell division protein FtsZ, MAGNESIUM ION, ... (4 entities in total) |
Functional Keywords | cell division protein, cell cycle |
Biological source | Corynebacterium glutamicum ATCC 13032 More |
Total number of polymer chains | 8 |
Total formula weight | 37206.39 |
Authors | Sogues, A.,Wehenkel, A.M.,Alzari, P.M. (deposition date: 2019-07-25, release date: 2020-03-11, Last modification date: 2024-05-15) |
Primary citation | Sogues, A.,Martinez, M.,Gaday, Q.,Ben Assaya, M.,Grana, M.,Voegele, A.,VanNieuwenhze, M.,England, P.,Haouz, A.,Chenal, A.,Trepout, S.,Duran, R.,Wehenkel, A.M.,Alzari, P.M. Essential dynamic interdependence of FtsZ and SepF for Z-ring and septum formation in Corynebacterium glutamicum. Nat Commun, 11:1641-1641, 2020 Cited by PubMed Abstract: The mechanisms of Z-ring assembly and regulation in bacteria are poorly understood, particularly in non-model organisms. Actinobacteria, a large bacterial phylum that includes the pathogen Mycobacterium tuberculosis, lack the canonical FtsZ-membrane anchors and Z-ring regulators described for E. coli. Here we investigate the physiological function of Corynebacterium glutamicum SepF, the only cell division-associated protein from Actinobacteria known to interact with the conserved C-terminal tail of FtsZ. We show an essential interdependence of FtsZ and SepF for formation of a functional Z-ring in C. glutamicum. The crystal structure of the SepF-FtsZ complex reveals a hydrophobic FtsZ-binding pocket, which defines the SepF homodimer as the functional unit, and suggests a reversible oligomerization interface. FtsZ filaments and lipid membranes have opposing effects on SepF polymerization, indicating that SepF has multiple roles at the cell division site, involving FtsZ bundling, Z-ring tethering and membrane reshaping activities that are needed for proper Z-ring assembly and function. PubMed: 32242019DOI: 10.1038/s41467-020-15490-8 PDB entries with the same primary citation |
Experimental method | X-RAY DIFFRACTION (2.2 Å) |
Structure validation
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