5xfe

Luciferin-regenerating enzyme solved by SAD using XFEL (refined against 11,000 patterns)

spinqualitylabelsall models 5xfe, resolution 1.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5xfe is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: HG, MG, MPD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Serial femtosecond crystallography (SFX) using X-ray free-electron lasers (XFELs) holds enormous potential for the structure determination of proteins for which it is difficult to produce large and high-quality crystals. SFX has been applied to various systems, but rarely to proteins that have previously unknown structures. Consequently, the majority of previously obtained SFX structures have been solved by the molecular replacement method. To facilitate protein structure determination by SFX, it is essential to establish phasing methods that work efficiently for SFX. Here, selenomethionine derivatization and mercury soaking have been investigated for SFX experiments using the high-energy XFEL at the SPring-8 Angstrom Compact Free-Electron Laser (SACLA), Hyogo, Japan. Three successful cases are reported of single-wavelength anomalous diffraction (SAD) phasing using X-rays of less than 1 A wavelength with reasonable numbers of diffraction patterns (13 000, 60 000 and 11 000). It is demonstrated that the combination of high-energy X-rays from an XFEL and commonly used heavy-atom incorporation techniques will enable routine de novo structural determination of biomacromolecules. Experimental phase determination with selenomethionine or mercury-derivatization in serial femtosecond crystallography.,Yamashita K, Kuwabara N, Nakane T, Murai T, Mizohata E, Sugahara M, Pan D, Masuda T, Suzuki M, Sato T, Kodan A, Yamaguchi T, Nango E, Tanaka T, Tono K, Joti Y, Kameshima T, Hatsui T, Yabashi M, Manya H, Endo T, Kato R, Senda T, Kato H, Iwata S, Ago H, Yamamoto M, Yumoto F, Nakatsu T IUCrJ. 2017 Aug 8;4(Pt 5):639-647. doi: 10.1107/S2052252517008557. eCollection, 2017 Sep 1. PMID:28989719 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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