6sat | pdb_00006sat

Cell Division Protein SepF in complex with C-terminal domain of FtsZ

spinqualitylabelsall models 6sat, resolution 1.60Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6sat is a 4 chain structure with sequence from Corgl. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Gene: sepF, Cgl2152 (CORGL) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [FTSZ_CORGL] Essential cell division protein that forms a contractile ring structure (Z ring) at the future cell division site. The regulation of the ring assembly controls the timing and the location of cell division. One of the functions of the FtsZ ring is to recruit other cell division proteins to the septum to produce a new cell wall between the dividing cells. Binds GTP and shows GTPase activity.[HAMAP-Rule:MF_00909] Publication Abstract from PubMed 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. Essential dynamic interdependence of FtsZ and SepF for Z-ring and septum formation in Corynebacterium glutamicum.,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 AM, Alzari PM Nat Commun. 2020 Apr 2;11(1):1641. doi: 10.1038/s41467-020-15490-8. PMID:32242019 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Cell division protein 3D structures

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