6lry

Crystal structure of human endothelin ETB receptor in complex with sarafotoxin S6b

spinqualitylabelsall models 6lry, resolution 3.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6lry is a 2 chain structure with sequence from Atractaspis engaddensis, Enterobacteria phage RB59 and Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Sarafotoxins (SRTXs) are endothelin-like peptides extracted from snake venom. SRTXs stimulate the endothelin ETA and ETB receptors and enhance vasoconstriction, followed by left ventricular dysfunction and bronchoconstriction. SRTXs include four major isopeptides, S6a-d, with different subtype selectivities. Here, we report the crystal structure of the human ETB receptor in complex with the non-selective sarafotoxin S6b at 3.0 A resolution. This structure reveals the similarities and differences between the binding modes of the endothelins and S6b. Moreover, molecular dynamics simulations based on the S6b-bound receptor provides structural insight into the subtype selectivity of the sarafotoxins. Our study clarifies the recognition mechanism of the endothelin-like peptide families. Crystal structure of human endothelin ETB receptor in complex with sarafotoxin S6b.,Izume T, Miyauchi H, Shihoya W, Nureki O Biochem Biophys Res Commun. 2020 Jan 28. pii: S0006-291X(20)30021-8. doi:, 10.1016/j.bbrc.2019.12.091. PMID:32001000 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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