Search T-Space Advanced Search
Home

Browse
Communities
& Collections

Issue Date
Author
Title
Subject

Sign on to:
Receive email
updates

My Account
authorized users

Edit Profile

Help
About T-Space
 Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25141

 Title: Radiation Damage and Free Radical Production in Irradiated Ribonuclease Authors: Hunt, J. W.Till, J. E.Williams, J.F. Keywords: Free RadicalRibonucleaseElectron spin resonance Issue Date: Nov-1962 Publisher: Radiation Research Society Citation: HUNT JW, WILLIAMS JF, TILL JE. Radiation damage and free radical production in irradiated ribonuclease. Radiat Res. 1962;17(5):703-11. Series/Report no.: Radiation ResearchVolume 17 Issue 5 Abstract: It is probable that transient free radical states are implicated in the chain of events leading to the production of radiation damage. In solids and in dry biological materials, these free radicals are comparatively stable and have been studied by a number of workers in materials of biological interest, including biochemicals (1, 2), bacterial spores (3), and seeds (4, 5). The objective of such studies has been to determine the extent to which free radical mechanisms are responsible for the bio-logical effects of ionizing radiation. Unfortunately, from the radiobiological point of view, many of the studies utilizing pure compounds have been limited by the lack of an assayable biological activity, and studies of radiation effects on biologically active systems are often difficult to interpret because of the complexity of the systems at the molecular level. Some of these difficulties may be avoided by using as a test system a biologically active macromolecule, either protein or nucleic acid. At the present time, the best characterized of these macromolecules are the enzymes in particular, the enzyme ribonuclease (RNase). In the experiments to be reported here, the radiation sensitivity of the enzymatic activity of RNase irradiated in the dry state in various gaseous environments has been studied, and a preliminary attempt has been made to relate these results to the electron spin resonance (ESR) spectra of the free radicals produced in dry RNase by radiation. Description: Reproduced with permission from the Radiation Research Society. Radiation Research Society allows published articles to be archived in institutional repositories. URI: http://www.rrjournal.org/doi/pdf/10.2307/3571218http://dx.doi.org/10.2307/3571218http://hdl.handle.net/1807/25141 ISSN: 0033-7587 Appears in Collections: Till, James E.

Files in This Item:

File Description SizeFormat
Radiation Damage and Free Radical Production in Irradiated Ribonuclease.pdf291.09 kBAdobe PDF
View/Open

Items in T-Space are protected by copyright, with all rights reserved, unless otherwise indicated.