2zcw | pdb_00002zcw

Crystal Structure of TTHA1359, a Transcriptional Regulator, CRP/FNR family from Thermus thermophilus HB8

spinqualitylabelsall models 2zcw, resolution 1.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2zcw is a 1 chain structure with sequence from Thermus thermophilus. This structure supersedes the now removed PDB entry 2coh. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: MPD NonStd Res: MSE Resources: FirstGlance, OCA, RCSB, PDBsum, TOPSAN 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 Thermus thermophilus SdrP is one of four cyclic AMP receptor protein (CRP)/fumarate and nitrate reduction regulator (FNR) family proteins from the extremely thermophilic bacterium T. thermophilus HB8. Expression of sdrP mRNA increased in the stationary phase during cultivation at 70 degrees C. Although the sdrP gene was non-essential, an sdrP-deficient strain showed growth defects, particularly when grown in a synthetic medium, and increased sensitivity to disulphide stress. The expression of several genes was altered in the sdrP disruptant. Among them, we found eight SdrP-dependent promoters using in vitro transcription assays. A predicted SdrP binding site similar to that recognized by Escherichia coli CRP was found upstream of each SdrP-dependent promoter. In the wild-type strain, expression of these eight genes tended to increase upon entry into the stationary phase. Transcriptional activation in vitro was independent of any added effector molecule. The hypothesis that apo-SdrP is the active form of the protein was supported by the observation that the three-dimensional structure of apo-SdrP is similar to that of the DNA-binding form of E. coli CRP. Based on the properties of the SdrP-regulated genes found in this study, it is speculated that SdrP is involved in nutrient and energy supply, redox control, and polyadenylation of mRNA. Global gene expression mediated by Thermus thermophilus SdrP, a CRP/FNR family transcriptional regulator.,Agari Y, Kashihara A, Yokoyama S, Kuramitsu S, Shinkai A Mol Microbiol. 2008 Oct;70(1):60-75. Epub 2008 Aug 11. PMID:18699868 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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