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THE EPIGENETIC PROTECTION SHELL OF EUCHROMATIN DNA

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Release : 2023-05-21
Genre : Science
Kind : eBook
Book Rating : 453/5 ( reviews)

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Book Synopsis THE EPIGENETIC PROTECTION SHELL OF EUCHROMATIN DNA by : Andreas Johannes Kesel

Download or read book THE EPIGENETIC PROTECTION SHELL OF EUCHROMATIN DNA written by Andreas Johannes Kesel. This book was released on 2023-05-21. Available in PDF, EPUB and Kindle. Book excerpt: Oxygen exists in two gaseous (dioxygen and ozone) and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen, was predicted to exist in 1990. The first synthesis and characterization of cyclooctaoxygen as its sodium crown complex, isolated in the form of three cytosine nucleoside hydrochloride complexes, was reported in 2016. Cyclooctaoxygen sodium was synthesized in vitro from atmospheric oxygen, or catalase effect-generated oxygen, under catalysis of cytosine nucleosides and either ninhydrin or eukaryotic low-molecular weight RNA. Thin-layer chromatographic mobility shift assays were applied on specific nucleic acids and the cyclooctaoxygen sodium complex. The cationic cyclooctaoxygen sodium complex was shown to bind to nucleic acids (RNA and DNA), to associate with single-stranded DNA and spermine phosphate, and to be essentially non-toxic to cultured mammalian cells at 0.1–1.0 mM concentration. It is postulated that cyclooctaoxygen is formed in most eukaryotic cells in vivo from dihydrogen peroxide in a catalase reaction catalysed by cytidine and RNA. A molecular biological model was deduced for a first epigenetic shell of eukaryotic in vivo DNA. This model incorporates an epigenetic explanation for the interactions of the essential micronutrient selenium (as selenite) with eukaryotic in vivo DNA. The sperminium hydrogen phosphate/cyclooctaoxygen sodium complex is calculated to cover the actively transcribed regions (2.6%) of bovine lymphocyte interphase genome. Cyclooctaoxygen seems to be naturally absent in hypoxia-induced highly condensed chromatin, taken as a model for eukaryotic metaphase/anaphase/early telophase mitotic chromatin. Hence, it is proposed that the cyclooctaoxygen sodium-bridged sperminium hydrogen phosphate and selenite coverage serves as an epigenetic shell of actively transcribed gene regions in eukaryotic 'open' euchromatin DNA. It is proposed that the sperminium phosphate/cyclooctaoxygen sodium complex coverage of nucleic acids is essential to eukaryotic gene regulation and promoted proto-eukaryotic evolution. Cyclooctaoxygen sodium-bridged sperminium hydrogen selenite is calculated to serve as a marker shell component at ATG start codons in human euchromatin DNA mRNA genes, both at the translation initiation triplet and at 5′-untranslated region upstream ATGs. The total herbicide glyphosate (ROUNDUP®) and its metabolite (aminomethyl)phosphonic acid (AMPA) are proved to represent 'epigenetic poisons', since they both selectively destroy the cyclooctaoxygen sodium complex. This definition is of reason, since the destruction of cyclooctaoxygen is certainly sufficient to bring the protection shield of human euchromatin into collateral epigenetic collapse. The total herbicide glyphosate and its environmental metabolite (aminomethyl)phosphonic acid (AMPA) can be associated in vitro with catalytic detoriation of eukaryotic euchromatin genetic information. The epigenetic shell of eukaryotic euchromatin is susceptible to decay induced by catalytic epigenetic poisons threatening eukaryotic genomic heritage.

A Dictionary of Biology

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Release : 2015-06-25
Genre : Science
Kind : eBook
Book Rating : 447/5 ( reviews)

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Book Synopsis A Dictionary of Biology by : Robert Hine

Download or read book A Dictionary of Biology written by Robert Hine. This book was released on 2015-06-25. Available in PDF, EPUB and Kindle. Book excerpt: Fully revised and updated for the seventh edition, this market-leading dictionary is the perfect guide for anyone studying biology, either at school or university. With more than 5,500 clear and concise entries, it provides comprehensive coverage of biology, biophysics, and biochemistry. Over 250 new entries include terms such as Broca's area, comparative genomic hybridization, mirror neuron, and Pandoravirus. Appendices include classifications of the animal and plant kingdoms, the geological time scale, major mass extinctions of species, model organisms and their genomes, Nobel prizewinners, and a new appendix on evolution. Entry-level web links to online resources can be accessed via a companion website.

Recent Advances in Drug Addiction Research and Clinical Applications

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Release : 2016-07-14
Genre : Medical
Kind : eBook
Book Rating : 919/5 ( reviews)

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Book Synopsis Recent Advances in Drug Addiction Research and Clinical Applications by : William Meil

Download or read book Recent Advances in Drug Addiction Research and Clinical Applications written by William Meil. This book was released on 2016-07-14. Available in PDF, EPUB and Kindle. Book excerpt: Although it is well-accepted that drug addiction is a major public health concern, how we address it as a society continues to evolve as recent advances in the lab and clinic clarify the nature of the problem and influence our views. This unique collection of eight chapters reviews key findings on the neurobiology and therapeutics of addiction while capturing the diversity of perspectives that shape these concepts, which range from evolutionary biology to psychiatry to the legal system. This book discusses in depth how technological advances have led to important discoveries and how these discoveries, in turn, are increasingly being translated into clinical practice. It also presents avenues for future study that hold promise for the many affected by addiction.

Epigenetics Methods

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Release : 2020-07-08
Genre : Medical
Kind : eBook
Book Rating : 154/5 ( reviews)

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Book Synopsis Epigenetics Methods by : Trygve Tollefsbol

Download or read book Epigenetics Methods written by Trygve Tollefsbol. This book was released on 2020-07-08. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the field of epigenetics has grown significantly, driving new understanding of human developmental processes and disease expression, as well as advances in diagnostics and therapeutics. As the field of epigenetics continues to grow, methods and technologies have multiplied, resulting in a wide range of approaches and tools researchers might employ. Epigenetics Methods offers comprehensive instruction in methods, protocols, and experimental approaches applied in field of epigenetics. Here, across thirty-five chapters, specialists offer step-by-step overviews of methods used to study various epigenetic mechanisms, as employed in basic and translational research. Leading the reader from fundamental to more advanced methods, the book begins with thorough instruction in DNA methylation techniques and gene or locus-specific methylation analyses, followed by histone modification methods, chromatin evaluation, enzyme analyses of histone methylation, and studies of non-coding RNAs as epigenetic modulators. Recently developed techniques and technologies discussed include single-cell epigenomics, epigenetic editing, computational epigenetics, systems biology epigenetic methods, and forensic epigenetic approaches. Epigenetics methods currently in-development, and their implication for future research, are also considered in-depth. In addition, as with the wider life sciences, reproducibility across experiments, labs, and subdisciplines is a growing issue for epigenetics researchers. This volume provides consensus-driven methods instruction and overviews. Tollefsbol and contributing authors survey the range of existing methods; identify best practices, common themes, and challenges; and bring unity of approach to a diverse and ever-evolving field. Includes contributions by leading international investigators involved in epigenetic research and clinical and therapeutic application Integrates technology and translation with fundamental chapters on epigenetics methods, as well as chapters on more novel and advanced epigenetics methods Written at verbal and technical levels that can be understood by scientists and students alike Includes chapters on state-of-the-art techniques such as single-cell epigenomics, use of CRISPR/Cas9 for epigenetic editing, and epigenetics methods applied to forensics

DNA Damage Recognition

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Release : 2005-09-19
Genre : Medical
Kind : eBook
Book Rating : 681/5 ( reviews)

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Book Synopsis DNA Damage Recognition by : Wolfram Siede

Download or read book DNA Damage Recognition written by Wolfram Siede. This book was released on 2005-09-19. Available in PDF, EPUB and Kindle. Book excerpt: Stands as the most comprehensive guide to the subject-covering every essential topic related to DNA damage identification and repair. Covering a wide array of topics from bacteria to human cells, this book summarizes recent developments in DNA damage repair and recognition while providing timely reviews on the molecular mechanisms employe

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