4bqu | pdb_00004bqu

Japanin from Rhipicephalus appendiculatus bound to cholesterol: Orthorhombic crystal form

spinqualitylabelsall models 4bqu, resolution 2.36Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4bqu is a 2 chain structure with sequence from Brown ear tick. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CL, CLR, EDO, FUC, MAN, NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Two crystal structures of Japanin, an 18 kDa immune-modulatory lipocalin from the Brown Ear Tick (Rhipicephalus appendiculatus), have been determined at 2.2 and 2.4 A resolution. In both crystal forms the protein is in complex with cholesterol, which sits in a closed pocket at the centre of the lipocalin barrel. Both crystal forms are dimers, which are also observed in solution. Molecular modelling suggests that previously-described members of a tick protein family bearing high sequence homology to Japanin are also likely to bind cholesterol or cholesterol derivatives. Structural basis of cholesterol binding by a novel clade of dendritic cell modulators from ticks.,Roversi P, Johnson S, Preston SG, Nunn MA, Paesen GC, Austyn JM, Nuttall PA, Lea SM Sci Rep. 2017 Nov 22;7(1):16057. doi: 10.1038/s41598-017-16413-2. PMID:29167574 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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