4gcv | pdb_00004gcv

Structure of a Putative transcription factor (PA1374)from Pseudomonas aeruginosa

spinqualitylabelsall models 4gcv, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4gcv is a 12 chain structure with sequence from Pseudomonas aeruginosa PAO1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: GOL, MSE, NA, PO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q9I3X0_PSEAE Publication Abstract from PubMed Members of the multiple antibiotic resistance regulator (MarR) family regulate the expression of genes related to antibiotic resistance, oxidative stress, and virulence in bacteria and Archaea. Here, we determined the structure of PA1374 from Pseudomonas aeruginosa at 2.3A resolution. PA1374 belonged to the MarR family and its structure revealed a tightly bound dimer with each subunit containing a winged helix-turn-helix (wHTH) DNA-binding motif. Conserved arginine residues, Arg55, Arg74, and Arg77, were located in the wHTH region, which might be important to DNA binding. Furthermore, each monomer contained a pocket made of conserved hydrophobic residues. A highly conserved Cys11 located at one end of this pocket may undergo oxidation by organic hydroperoxide molecules, as shown in other MarR family proteins acting as redox-sensing regulators. These results provide insights about the role of PA1374 as a putative oxidative-stress sensing transcriptional regulator. The X-ray crystal structure of PA1374 from Pseudomonas aeruginosa, a putative oxidative-stress sensing transcriptional regulator.,Kim H, Choe J Biochem Biophys Res Commun. 2013 Feb 15;431(3):376-81. doi:, 10.1016/j.bbrc.2013.01.044. Epub 2013 Jan 18. PMID:23337505 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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