4qzu

Crystal Structure of wild type Human Cellular Retinol Binding Protein II (hCRBPII) bound to retinol at 11 KeV beam energy

spinqualitylabelsall models 4qzu, resolution 1.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4qzu is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.5Å Ligands: ACT, GOL, RTL Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RET2_HUMAN Intracellular transport of retinol. Publication Abstract from PubMed Cellular retinol-binding proteins (CRBPs) I and II, which are members of the intracellular lipid-binding protein (iLBP) family, are retinoid chaperones that are responsible for the intracellular transport and delivery of both retinol and retinal. Although structures of retinol-bound CRBPI and CRBPII are known, no structure of a retinal-bound CRBP has been reported. In addition, the retinol-bound human CRBPII (hCRBPII) structure shows partial occupancy of a noncanonical conformation of retinol in the binding pocket. Here, the structure of retinal-bound hCRBPII and the structure of retinol-bound hCRBPII with retinol fully occupying the binding pocket are reported. It is further shown that the retinoid derivative seen in both the zebrafish CRBP and the hCRBPII structures is likely to be the product of flux-dependent and wavelength-dependent X-ray damage during data collection. The structures of retinoid-bound CRBPs are compared and contrasted, and rationales for the differences in binding affinities for retinal and retinol are provided. Structures of holo wild-type human cellular retinol-binding protein II (hCRBPII) bound to retinol and retinal.,Nossoni Z, Assar Z, Yapici I, Nosrati M, Wang W, Berbasova T, Vasileiou C, Borhan B, Geiger J Acta Crystallogr D Biol Crystallogr. 2014 Dec 1;70(Pt 12):3226-32. doi:, 10.1107/S1399004714023839. Epub 2014 Nov 22. PMID:25478840 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Retinol-binding protein 3D structures

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