2fkd | pdb_00002fkd

Crystal Structure of the C-terminal domain of Bacteriophage 186 repressor

spinqualitylabelsall models 2fkd, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2fkd is a 14 chain structure with sequence from Bp186. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Gene: CI (BP186) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [RPC1_BP186] Repressor of lysogeny. 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 Bacteriophage lambda is a paradigm for understanding the role of cooperativity in gene regulation. Comparison of the regulatory regions of lambda and the unrelated temperate bacteriophage 186 provides insight into alternate ways to assemble functional genetic switches. The structure of the C-terminal domain of the 186 repressor, determined at 2.7 A resolution, reveals an unusual heptamer of dimers, consistent with presented genetic studies. In addition, the structure of a cooperativity mutant of the full-length 186 repressor, identified by genetic screens, was solved to 1.95 A resolution. These structures provide a molecular basis for understanding lysogenic regulation in 186. Whereas the overall fold of the 186 and lambda repressor monomers is remarkably similar, the way the two repressors cooperatively assemble is quite different and explains in part the differences in their regulatory activity. The structural basis of cooperative regulation at an alternate genetic switch.,Pinkett HW, Shearwin KE, Stayrook S, Dodd IB, Burr T, Hochschild A, Egan JB, Lewis M Mol Cell. 2006 Mar 3;21(5):605-15. PMID:16507359 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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