2v0n | pdb_00002v0n

ACTIVATED RESPONSE REGULATOR PLED IN COMPLEX WITH C-DIGMP AND GTP-ALPHA-S

spinqualitylabelsall models 2v0n, resolution 2.71Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2v0n is a 2 chain structure with sequence from Caulobacter vibrioides. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: BEF, C2E, CL, GAV, MG, SO4 Related: 1w25, 2wb4 Resources: FirstGlance, OCA, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Cyclic di-guanosine monophosphate (c-di-GMP) is a ubiquitous bacterial second messenger involved in the regulation of cell surface-associated traits and persistence. We have determined the crystal structure of PleD from Caulobacter crescentus, a response regulator with a diguanylate cyclase (DGC) domain, in its activated form. The BeF(3)(-) modification of its receiver domain causes rearrangement with respect to an adaptor domain, which, in turn, promotes dimer formation, allowing for the efficient encounter of two symmetric catalytic domains. The substrate analog GTPalphaS and two putative cations are bound to the active sites in a manner similar to adenylate cyclases, suggesting an analogous two-metal catalytic mechanism. An allosteric c-di-GMP-binding mode that crosslinks DGC and an adaptor domain had been identified before. Here, a second mode is observed that crosslinks the DGC domains within a PleD dimer. Both modes cause noncompetitive product inhibition by domain immobilization. Structure of BeF3- -modified response regulator PleD: implications for diguanylate cyclase activation, catalysis, and feedback inhibition.,Wassmann P, Chan C, Paul R, Beck A, Heerklotz H, Jenal U, Schirmer T Structure. 2007 Aug;15(8):915-27. PMID:17697997 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also C-di-GMP PleD activation PleD allosteric product inhibition PleD catalysis Response regulator Response regulator PLED in complex with C-di-GMP

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