5j7a

Bacteriorhodopsin ground state structure obtained with Serial Femtosecond Crystallography

spinqualitylabelsall models 5j7a, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5j7a is a 1 chain structure with sequence from Halsa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: LI1, RET Gene: bop, VNG_1467G (HALSA) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [BACR_HALSA] Light-driven proton pump. Publication Abstract from PubMed Serial femtosecond crystallography (SFX) using X-ray free-electron laser sources is an emerging method with considerable potential for time-resolved pump-probe experiments. Here we present a lipidic cubic phase SFX structure of the light-driven proton pump bacteriorhodopsin (bR) to 2.3 A resolution and a method to investigate protein dynamics with modest sample requirement. Time-resolved SFX (TR-SFX) with a pump-probe delay of 1 ms yields difference Fourier maps compatible with the dark to M state transition of bR. Importantly, the method is very sample efficient and reduces sample consumption to about 1 mg per collected time point. Accumulation of M intermediate within the crystal lattice is confirmed by time-resolved visible absorption spectroscopy. This study provides an important step towards characterizing the complete photocycle dynamics of retinal proteins and demonstrates the feasibility of a sample efficient viscous medium jet for TR-SFX. Lipidic cubic phase injector is a viable crystal delivery system for time-resolved serial crystallography.,Nogly P, Panneels V, Nelson G, Gati C, Kimura T, Milne C, Milathianaki D, Kubo M, Wu W, Conrad C, Coe J, Bean R, Zhao Y, Bath P, Dods R, Harimoorthy R, Beyerlein KR, Rheinberger J, James D, DePonte D, Li C, Sala L, Williams GJ, Hunter MS, Koglin JE, Berntsen P, Nango E, Iwata S, Chapman HN, Fromme P, Frank M, Abela R, Boutet S, Barty A, White TA, Weierstall U, Spence J, Neutze R, Schertler G, Standfuss J Nat Commun. 2016 Aug 22;7:12314. doi: 10.1038/ncomms12314. PMID:27545823 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Bacteriorhodopsin

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