2z33

Solution structure of the DNA complex of PhoB DNA-binding/transactivation Domain

spinqualitylabelsall models 2z33 Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2z33 is a 3 chain structure with sequence from Escherichia coli. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function PHOB_ECOLI This protein is a positive regulator for the phosphate regulon. Transcription of this operon is positively regulated by PhoB and PhoR when phosphate is limited. 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 The solution structure of the complex between the transcription factor PhoB DNA-binding/transactivation domain and DNA was determined by NMR spectroscopy and simulated annealing in a periodic boundary box of explicit water with the particle mesh Ewald method. The refined structures provided better convergence and better local geometry compared with the structures determined in vacuum. The hydrogen bond interactions between the PhoB domain and DNA in the aqueous environment were fully formed. The complex structure was found to be very similar to the crystal structure, particularly at the PhoB-DNA interface, much more so than expected from the vacuum structure. These results indicate the importance of the proper treatment of electrostatic and hydration influences in describing protein-DNA interactions. The hydration structures observed for the refined structures contained most of the crystal waters as a subset. We observed that various water-mediated PhoB-DNA interactions contributed to the molecular recognition between PhoB and DNA. Proteins 2008. (c) 2008 Wiley-Liss, Inc. Water-mediated interactions between DNA and PhoB DNA-binding/transactivation domain: NMR-restrained molecular dynamics in explicit water environment.,Yamane T, Okamura H, Ikeguchi M, Nishimura Y, Kidera A Proteins. 2008 Jan 10;. PMID:18186481 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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