Sulfur Distribution in Bacteriorhodopsin from Multiple Wavelength Anomalous Diffraction Near the Sulfur K-Edge with Synchrotron X-Ray Radiation
نویسندگان
چکیده
منابع مشابه
Parameters Influencing Sulfur Speciation in Environmental Samples Using Sulfur K-Edge X-Ray Absorption Near-Edge Structure
This paper aims to enhance the credibility of applying the sulfur K-edge XANES spectroscopy as an innovative "fingerprint" for characterizing environmental samples. The sensitivities of sulfur K-edge XANES spectra of ten sulfur compound standards detected by two different detectors, namely, Lytle detector (LyD) and Germanium detector (GeD), were studied and compared. Further investigation on "s...
متن کاملPartial melting in the iron–sulfur system at high pressure: A synchrotron X-ray diffraction study
Partial melting in the iron–sulfur system at high pressure: A synchrotron X-ray diffraction study Andrew J. Campbell a,∗, Christopher T. Seagle b, Dion L. Heinz b,c, Guoyin Shen d, Vitali B. Prakapenka e a Department of Geology, University of Maryland, College Park, MD 20742, United States b Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, United States c James ...
متن کاملX-Ray Absorption Near Edge Spectroscopy of Sulfur in Biomolecules: Two Examples from Glutathione and Insulin
Although a minor constituent of cell and tissues, sulfur is an essential element to fulfil a wide range of biological processes, and it is present in the functional groups of many biomolecules that participate to redox reactions in vivo. Cysteine, one of the two S-containing aminoacids present in proteins, contains sulfur in fully reduced form and its thiol group can undergo a range of reaction...
متن کاملPicosecond sulfur K-edge X-ray absorption spectroscopy with applications to excited state proton transfer
Picosecond X-ray absorption (XA) spectroscopy at the S K-edge (∼2.4 keV) is demonstrated and used to monitor excited state dynamics in a small organosulfur molecule (2-Thiopyridone, 2TP) following optical excitation. Multiple studies have reported that the thione (2TP) is converted into the thiol (2-Mercaptopyridine, 2MP) following photoexcitation. However, the timescale and photochemical pathw...
متن کاملLong-Range Chemical Sensitivity in the Sulfur K-Edge X-ray Absorption Spectra of Substituted Thiophenes
Thiophenes are the simplest aromatic sulfur-containing compounds and are stable and widespread in fossil fuels. Regulation of sulfur levels in fuels and emissions has become and continues to be ever more stringent as part of governments' efforts to address negative environmental impacts of sulfur dioxide. In turn, more effective removal methods are continually being sought. In a chemical sense,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1998
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(98)77512-5