Dose ratevsdose dependency of radiation damage to protein crystals
نویسندگان
چکیده
منابع مشابه
Dose dependence of radiation damage for protein crystals studied at various X-ray energies.
Radiation damage to protein crystals is the most serious problem in obtaining accurate structures from protein crystallography. In order to examine the photon energy dependence of radiation damage, 12 to 15 data sets from each of nine tetragonal lysozyme crystals were collected at nine different X-ray energies (6.5, 7.1, 8.3, 9.9, 12.4, 16.5, 20.0, 24.8 and 33.0 keV) using beamline BL41XU at SP...
متن کاملNotes from the Bench How does Radiation Damage in Protein Crystals Depend on X-Ray Dose?
diffusion altogether, secondary damage becomes insigIs radiation damage to cryopreserved protein crystals nificant. Crystal decay should then be proportional to strictly proportional to accumulated dose at the highcumulative dose, up to fluxes at which heating rates or flux density of beams from undulators at third-generarelated phenomena are too great to control. Preliminary tion synchrotron s...
متن کاملHow does radiation damage in protein crystals depend on X-ray dose?
Is radiation damage to cryopreserved protein crystals strictly proportional to accumulated dose at the high-flux density of beams from undulators at third-generation synchrotron sources? The answer is "yes," for overall damage to several different kinds of protein crystals at flux densities up to 10(15) ph/sec/mm(2) (APS beamline 19-ID). We find that, at 12 keV (1 A wavelength), about ten absor...
متن کاملRadiation damage in scintillating crystals
Crystal Calorimetry in future high-energy physics experiments faces a new challenge to maintain its precision in a hostile radiation environment. This paper discusses the effects of radiation damage in scintillating crystals, and concludes that the predominant radiation damage effect in crystal scintillators is the radiation-induced absorption, or color center formation, not the loss of scintil...
متن کاملProtective Effect of Low Dose Melatonin on Radiation-Induced Damage to Rat Liver
Background: Melatonin is a free radical scavenger. It has also antioxidant effects through its stimulatory actions on antioxidant system. Objective: We conducted this study to examine the effect of different oral doses of melatonin on liver tissue. Methods: We used 42 rats—6 rats in each group. Group I served as the control group; group II rats were pretreated with only melatonin; group III w...
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: Acta Crystallographica Section A Foundations of Crystallography
سال: 2002
ISSN: 0108-7673
DOI: 10.1107/s0108767302087925