6eib

Structure of the active GGEEF domain of a diguanylate cyclase from Vibrio cholerae.

spinqualitylabelsall models 6eib, resolution 1.94Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6eib is a 4 chain structure with sequence from Vibrio cholerae O395. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.941Å Ligands: ACT, EDO, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DGC_VIBC3 Involved in biofilm formation (PubMed:26728467, PubMed:28647124). Catalyzes the conversion of GTP to c-di-GMP (PubMed:28647124). Publication Abstract from PubMed Cyclic-di-GMP (c-di-GMP) synthesized by diguanylate cyclases has been an important and ubiquitous secondary messenger in almost all bacterial systems. In Vibrio cholerae, c-di-GMP plays an intricate role in the production of the exopolysaccharide matrix, and thereby, in biofilm formation. The formation of the surface biofilm enables the bacteria to survive in aquatic bodies, when not infecting a human host. Diguanylate cyclases are the class of enzymes which synthesize c-di-GMP from two molecules of GTP and are endowed with a GGDEF or, a GGEEF signature domain. The VC0395_0300 protein from V. cholerae, has been established as a diguanylate cyclase with a necessary role in biofilm formation. Here we present the structure of an N-terminally truncated form of VC0395_0300, which retains the active GGEEF domain for diguanylate cyclase activity but lacks 160 residues from the poorly organized N-terminal domain. X-ray diffraction data was collected from a crystal of VC0395_0300(161-321) to a resolution of 1.9 A. The structure displays remarkable topological similarity with diguanylate cyclases from other bacterial systems, but lacks the binding site for c-di-GMP present in its homologues. Finally, we demonstrate the ability of the truncated diguanylate cyclase VC0395_0300(161-321) to produce c-di-GMP, and its role in biofilm formation for the bacteria. Structure of the active GGEEF domain of a diguanylate cyclase from Vibrio cholerae.,Chouhan OP, Roske Y, Heinemann U, Biswas S Biochem Biophys Res Commun. 2020 Mar 5;523(2):287-292. doi:, 10.1016/j.bbrc.2019.11.179. Epub 2019 Dec 18. PMID:31862141 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Diguanylate cyclase

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