2vb3 | pdb_00002vb3

CRYSTAL STRUCTURE OF AG(I)CUSF

spinqualitylabelsall models 2vb3, resolution 2.33Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2vb3 is a 1 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: AG Related: 1zeq, 2vb2 Resources: FirstGlance, OCA, RCSB, PDBsum Function [CUSF_ECOLI] Part of a cation efflux system that mediates resistance to copper and silver. Binds one copper per polypeptide. 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 Methionine-rich motifs have an important role in copper trafficking factors, including the CusF protein. Here we show that CusF uses a new metal recognition site wherein Cu(I) is tetragonally displaced from a Met2His ligand plane toward a conserved tryptophan. Spectroscopic studies demonstrate that both thioether ligation and strong cation-pi interactions with tryptophan stabilize metal binding. This novel active site chemistry affords mechanisms for control of adventitious metal redox and substitution chemistry. Cu(I) recognition via cation-pi and methionine interactions in CusF.,Xue Y, Davis AV, Balakrishnan G, Stasser JP, Staehlin BM, Focia P, Spiro TG, Penner-Hahn JE, O'Halloran TV Nat Chem Biol. 2008 Feb;4(2):107-9. Epub 2007 Dec 23. PMID:18157124 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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