1wub | pdb_00001wub

Crystal structure of the polyisoprenoid-binding protein, TT1927b, from Thermus thermophilus HB8

spinqualitylabelsall models 1wub, resolution 1.65Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1wub is a 1 chain structure with sequence from "flavobacterium_thermophilum"_yoshida_and_oshima_1971 "flavobacterium thermophilum" yoshida and oshima 1971. This structure supersedes the now removed PDB entry 1uf6. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: OTP Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, 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 The isoprenoid quinones exist widely among prokaryotes and eukaryotes. They play essential roles in respiratory electron transport and in controlling oxidative stress and gene regulation. In the isoprenoid quinone biosynthetic pathway, polyprenyl pyrophosphates are used as isoprenoid side-chain precursors. Here we report the crystal structure of a novel polyprenyl pyrophosphate binding protein, TT1927b, from Thermus thermophilus HB8, complexed with its ligand. This protein belongs to the YceI-like family in the Pfam database, and its sequence homologs are present in a broad range of bacteria and archaea. The structure consists of an extended, eight-stranded, antiparallel beta-barrel. In the hydrophobic pore of the barrel, the protein binds the polyisoprenoid chain by hydrophobic interactions. Its overall structure resembles the lipocalin fold, but there is no sequence homology between TT1927b and the lipocalin family of proteins. Crystal structure of a novel polyisoprenoid-binding protein from Thermus thermophilus HB8.,Handa N, Terada T, Doi-Katayama Y, Hirota H, Tame JR, Park SY, Kuramitsu S, Shirouzu M, Yokoyama S Protein Sci. 2005 Apr;14(4):1004-10. Epub 2005 Mar 1. PMID:15741337 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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