نتایج جستجو برای: ray crystallography
تعداد نتایج: 307646 فیلتر نتایج به سال:
N'-(2-hydroxy-3-methoxybenzylidene)-4-methylbenzenesulfonohydrazide (1) was prepared by the reaction of p-Toluenesulfonyl hydrazide and 2-hydroxy-3-methoxy benzaldehyde (1:1 molar ratio) in ethanol under reflux condition. The crystal structure of the compound was determined by X-ray crystallography. Crystal data for 1 at -100 K: space group C/2c with: a = 15.807(1) Å, b = 10.457(1) Å, c = 20.77...
Recently introduced electronic area X-ray detectors (such as CCD based detectors) are having an enormous impact within the experimental x-ray community. The efficiency and ease of data collection has been improved considerably. They are also making practical the implementation of powerful new methodologies in data collection such as fine rotation slicing of crystallography data or multi-wavelen...
Conventional X-ray protein crystallography captures only “static” structures due to the limitation of temporal resolution. Recently, free electron lasers（XFEL）enabled capture dynamic at atomic level with time resolutions several tenth femtoseconds. We have been working on development serial femtosecond crystallography（SFX）, which is a structure determination technique, SACLA and successfully ob...
Macromolecular Crystallography is expanding rapidly, with respect to the number of molecules studied and their significance to biology and medicine. This expansion is enabled by faster acquisition of high quality diffraction data, the development of efficient X-ray detectors and the expanded availability of high brilliance X-ray beam lines at synchrotron radiation facilities.
We have developed an online NMR / X-ray Structure Pair Data Repository. The NIGMS Protein Structure Initiative (PSI) has provided many valuable reagents, 3D structures, and technologies for structural biology. The Northeast Structural Genomics Consortium was one of several PSI centers. NESG used both X-ray crystallography and NMR spectroscopy for protein structure determination. A key goal of t...
Electron crystallography is especially useful for studying the structure and function of membrane proteins - key molecules with important functions in neural and other cells. Electron crystallography is now an established technique for analyzing the structures of membrane proteins in lipid bilayers that closely simulate their natural biological environment. Utilizing cryo-electron microscopes w...
The use of protein X-ray crystallography for structure-based design of small-molecule drugs is well-documented and includes several notable success stories. However, it is less well-known that structural biology has emerged as a major tool for the design of novel vaccine antigens. Here, we review the important contributions that protein crystallography has made so far to vaccine research and de...
We present a crystallography chip enabling in situ room temperature crystallography at microfocus synchrotron beamlines and X-ray free-electron laser (X-FEL) sources. Compared to other in situ approaches, we observe extremely low background and high diffraction data quality. The chip design is robust and allows fast and efficient loading of thousands of small crystals. The ability to load a lar...
(E)-5-(Methoxyimino)-1,3,4,5-tetrahydro-2H-benzo[b]azepin-2-one was prepared by a condensation reaction from 3,4-dihydro-1H-benzo[b]azepin-2,5-dione and O-methylhydroxylamine. The configuration at the C=N double bond determined X-ray crystallography.
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