Epigenetic

Physicists: Desperate Acts (revisited)

Physicists: Desperate Acts Light-induced endogenous RNA interference in bioluminescent microbes links Schrodinger’s claims in “What is LIfe?” (1944) from a light-to-chemical pathway of information exchange in all living genera via amino acid substitutions in supercoiled DNA. All subsequent works on the evolutionary synthesis failed to link  the anti-entropic virucidal energy of sunlight to Darwin’s “conditions of life” from the claims of Schrodinger (1944) or the claims of any other serious scientist. Indeed, in the case of higher animals we know…

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Expunging the distinguished public

Royal Society Expunges Public From Evo Record Many of the attendee-participants were, in fact, more distinguished than many of the actual speakers. So the audience came to be heard as well as to listen. But the official recording (now posted) has been wiped clean of public comment — the most robust part of the meeting — and what we are left with, with few exceptions, is a series of academic lectures and old science. Thanks for continuing to make the…

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Energy-dependent de novo creation and neurogenesis

See also: Tasting light links energy from creation to adaptation Developmentally defined forebrain circuits regulate appetitive and aversive olfactory learning reported as: When neurons are ‘born’ impacts olfactory behavior in mice My summary: The de novo creation of different cell types is placed into the context of their energy-dependent birth and the transgenerational epigenetic inheritance of molecular mechanisms that link virus-driven energy theft to all pathology via olfaction, food odors, and human pheromones. See for comparison: Metabolism and neurogenesis …it…

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Hydrogen-atom energy in DNA base pairs

See also: Consciousness is simply food rearranged Role of Double Hydrogen Atom Transfer Reactions in Atmospheric Chemistry Abstract excerpt:  Hydrogen atom transfer (HAT) reactions are ubiquitous and play a crucial role in chemistries occurring in the atmosphere, biology, and industry. My comment: The link from physics to chemistry and the conserved molecular mechanisms of biologically-based RNA-mediated cell type differentiation has been the focus my works for more than 20 years, even before I knew what I would need to explain…

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Energy-dependent cellular communication

Communication shapes sensory response in multicellular networks Significance Cells routinely sense and respond to their environment, and they also communicate with each other. Exactly how communication impacts sensing remains poorly understood. We study a population of fibroblast cells that responds to a chemical stimulus (ATP) and communicates by molecule exchange. Combining experiments and mathematical modeling, we find that cells exhibit calcium oscillations in response to not only the ATP stimulus but also, increased cell–cell communication. Our results show that, when…

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Anthetical conclusions

Something is antithetical when it is in complete and utter opposition to the character of something. Analysis of protein-coding genetic variation in 60,706 humans reported as: Largest collection of human exome sequence data yields unprecedented tool for diagnosing rare disease …variation that was expected, but not found, in the data offered new insight. Some genes were found to have less than the expected number of missense mutations, which change the protein sequence, or “loss-of-function” mutations, which obliterate protein function. With…

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MicroRNAs and sexual orientation

A neural circuit encoding sexual preference in humans Excerpt: We anticipate the identification of a core neural circuit for sexual preferences to be a starting point for further sophisticated investigations into the neural principles of sexual behavior and particularly of its aberrations. My comment: They link sexual orientation in yeasts to humans but fail to recognize the fact that it is nutrient energy-dependent and pheromone-controlled by RNA methylation, the innate immune system, and supercoiled DNA. 20 years after we published…

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RNA methylation

This is a brief history of events that led me to found the domain RNA-mediated.com with some follow-up on the latest news about cell type differentiation In 2012, I attended this minisymposium 006.Transcribing Memories: New Mechanisms of Activity-Regulated Gene Expression and Their Roles in Experience-Dependent Plasticity. Description: Activity-regulated gene transcription is essential for orchestrating the gene expression programs that drive experience-dependent plasticity of neural circuits. Recent studies have not only vastly expanded our understanding of the mechanisms that mediate activity-regulated…

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Modelling life scientifically: RNA-mediated events

Experiment: “An attempt to arrive at an accurate result.” — James V. Kohl (3/27/16) EFBC fellowship class response to Dr. Tom Jordan who asked me to define “experiment” For comparison, see: Experiment: An experiment is a procedure carried out to verify, refute, or validate a hypothesis. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale, but always rely on repeatable procedure and logical analysis of the…

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RNA-mediated physics, chemistry, and molecular epigenetics (4)

Femtosecond structural dynamics drives the trans/cis isomerization in photoactive yellow protein 5/6/16 Summary excerpt: Visualizing a response to light Many biological processes depend on detecting and responding to light. The response is often mediated by a structural change in a protein that begins when absorption of a photon causes isomerization of a chromophore bound to the protein Article excerpt: Ultrafast fluorescence and transient absorption spectroscopy of PYP have shown that excited state decay is multi-phasic (3, 5, 39). The fast…

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  • What Darwin proved: there’s no such thing as a species
    GENETICS As Animals Mingle, a Baffling Genetic Barrier A short stretch of DNA is challenging what it means to be a species. By: Emily Singer August 5, 2014 Excerpt: “Scientists have dubbed such regions of the genome “islands of speciation.” The persistence of such islands is a phenomenon that has been observed in a variety of […]
  • Randomness and Divine Providence
    A Q&A on randomness and God’s providence …the main goal is to really put together a collection of scholarly studies of these issues: physicists, biologists, […]
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