Electron Migration in 5-bromouracil-substituted DNA and Oligonucleotides in Irradiated Aqueous Solutions PDF Download
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Languages : en
Pages : 3
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Results of work by other investigators support the hypothesis that negative charge can migrate in DNA. Charge transfer between nucleotides and electron migration in solid state DNA has been demonstrated, with migration distances as great as 110 bases. Here we report a series of studies on aqueous solutions of DNA and oligonucleotides in which the radiolysis of 5-bromouracil (BU) substituted for thymine is used as a molecular probe to detect and measure the extent of electron migration. In studies using oligonucleotides, BU was substituted for thymine at specific locations in defined base sequences using automated phosphoramidite synthesis techniques. Using these single-stranded oligonucleotides with BU located at the 5 in. end of the sequence, electrons do not appear to migrate more than one base, if any.
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Category :
Languages : en
Pages : 3
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Book Description
Results of work by other investigators support the hypothesis that negative charge can migrate in DNA. Charge transfer between nucleotides and electron migration in solid state DNA has been demonstrated, with migration distances as great as 110 bases. Here we report a series of studies on aqueous solutions of DNA and oligonucleotides in which the radiolysis of 5-bromouracil (BU) substituted for thymine is used as a molecular probe to detect and measure the extent of electron migration. In studies using oligonucleotides, BU was substituted for thymine at specific locations in defined base sequences using automated phosphoramidite synthesis techniques. Using these single-stranded oligonucleotides with BU located at the 5 in. end of the sequence, electrons do not appear to migrate more than one base, if any.
Author: Carol Manley Beach
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Category :
Languages : en
Pages : 0
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Category : Power resources
Languages : en
Pages : 806
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Category : Science
Languages : en
Pages : 664
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Category : Research
Languages : en
Pages : 1442
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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
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Category : Medicine
Languages : en
Pages : 1448
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Author: Michael Fry
Publisher: Academic Press
ISBN: 012802108X
Category : Science
Languages : en
Pages : 572
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Landmark Experiments in Molecular Biology critically considers breakthrough experiments that have constituted major turning points in the birth and evolution of molecular biology. These experiments laid the foundations to molecular biology by uncovering the major players in the machinery of inheritance and biological information handling such as DNA, RNA, ribosomes, and proteins. Landmark Experiments in Molecular Biology combines an historical survey of the development of ideas, theories, and profiles of leading scientists with detailed scientific and technical analysis. Includes detailed analysis of classically designed and executed experiments Incorporates technical and scientific analysis along with historical background for a robust understanding of molecular biology discoveries Provides critical analysis of the history of molecular biology to inform the future of scientific discovery Examines the machinery of inheritance and biological information handling
Author: N. Kochetkov
Publisher: Springer Science & Business Media
ISBN: 1468429736
Category : Science
Languages : en
Pages : 382
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Book Description
The study of nucleic acids is one of the most rapidly developing fields in modern science. The exceptionally important role of the nucleic acids as a key to the understanding of the nature of life is reflected in the enormous number of published works on the subject, including many outstanding monographs and surveys. The pathways of syn thesis and metabolism of nucleic acid,s and the many and varied biological functions of these biopolymers are examined with the utmost detail in the literature. Nearly as much attention has been paid to the macromolecular chemistry of the nucleic acids: elucidation of the size and shape of their molecules, the study of the physicochemical properties of their solutions, and the appropriate methods to be used in such research. The surveys of the chemistry of nucleic acids which have been published so far deal almost entirely with their synthesis and, in particular, with the synthetic chemistry of monomers (nucleosides and nucleotides) ; less attention has been paid to the synthesis of poly nucleotides. There is yet another highly important aspect of the chemistry of nucleic acids which is still in the formative stage, the study of the reactivity of nucleic acid macromolecules and their components. This can make an important contribution to the deter mination of the structure of these remarkable biopolymers and to the correct understanding of their biological functions.
Author: Mehran Mostafavi
Publisher: L'Editeur : EDP Sciences
ISBN: 9782759800247
Category : Radiation chemistry
Languages : en
Pages : 307
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Author: Q. Y. Shu
Publisher: CABI
ISBN: 1780640854
Category : Nature
Languages : en
Pages : 612
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Abstract: This book presents contemporary information on mutagenesis in plants and its applications in plant breeding and research. The topics are classified into sections focusing on the concepts, historical development and genetic basis of plant mutation breeding (chapters 1-6); mutagens and induced mutagenesis (chapters 7-13); mutation induction and mutant development (chapters 14-23); mutation breeding (chapters 24-34); or mutations in functional genomics (chapters 35-41). This book is an essential reference for those who are conducting research on mutagenesis as an approach to improving or modifying a trait, or achieving basic understanding of a pathway for a trait --.
