Revisiting the microtubule based quantum models of mind: tubulin bound GTP cannot pump microtubule coherence or provide energy for alpha <-> beta computation in stable microtubules [PDF]
, 2003 The current paper investigates the biological models of stable brain microtubules as quantum or classical computers whose function is based on electron hopping associated with kinking of the tubulin dimer. Hameroff (1998a, 1998b, 2003a, 2003b), Tuszynski
Georgiev, Danko
core
Light-driven artificial enzymes for selective oxidation of guanosine triphosphate using water-soluble POSS network polymers. [PDF]
, 2014 Accepted 25 Jun 2014.The light-driven artificial enzymes were constructed to realize unnatural reactions concerning bio-significant molecules. In this manuscript, the guanosine triphosphate (GTP)-selective oxidation is reported using the network polymers
Chujo, Yoshiki +2 more
core +1 more source
Molecular determinants of signal transduction in tropomyosin receptor kinases
FEBS Open Bio, EarlyView.Tropomyosin receptor kinases control critical neuronal functions, but how do the same receptors produce diverse cellular responses? This review explores the structural mechanisms behind Trk signaling diversity, focusing on allosteric modulation and ligand bias.
Giray Enkavi
wiley +1 more source
Transmembrane Transport of cAMP and AMP Using a Two Component Small Molecule Transport System
Angewandte Chemie, EarlyView.Transmembrane transport of the nucleotides cAMP (cyclic adenosine monophosphate) and AMP (adenosine monophosphate) is challenging, but can be achieved using a two‐component system consisting of a synthetic anionophore (e.g., squaramides) and a lipophilic thymine derivative.
Uththara M.C. Rathnaweera +7 more
wiley +2 more sources
PLoS Computational Biology, 2019 Thirteen tubulin protofilaments, made of αβ-tubulin heterodimers, interact laterally to produce cytoskeletal microtubules. Microtubules exhibit the striking property of dynamic instability, manifested in their intermittent growth and shrinkage at both ...
Vladimir A Fedorov +6 more
doaj +1 more source
Control of Nucleotide Metabolism and Ribosomal Ribonucleic Acid Synthesis During Nitrogen Starvation of \u3cem\u3eEscherichia coli\u3c/em\u3e [PDF]
, 1972 Ribosomal ribonucleic acid (RNA) synthesis and ribonucleoside triphosphate metabolism were studied in cultures of Escherichia coli subjected to starvation for inorganic nitrogen.
Irr, Joseph D.
core +1 more source
Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation
Advanced Functional Materials, EarlyView.Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna +10 more
wiley +1 more source
The role of free nucleotides in heart failure
Кардиоваскулярная терапия и профилактикаAim. To assess the potential of studying the plasma level of free nucleotides as additional biomarkers of heart failure (HF) taking into account the clinical and paraclinical data of the patient, and to analyze its change during therapy.Material and ...
E. V. Kolesnikova +3 more
doaj +1 more source
The synthesis of 2′-methylseleno adenosine and guanosine 5′-triphosphates
Bioorganic & Medicinal Chemistry, 2012 Modified nucleoside triphosphates (NTPs) represent powerful building blocks to generate nucleic acids with novel properties by enzymatic synthesis. We have recently demonstrated the access to 2'-SeCH(3)-uridine and 2'-SeCH(3)-cytidine derivatized RNAs for applications in RNA crystallography, using the corresponding nucleoside triphosphates and distinct
Santner, Tobias +3 more
openaire +3 more sources
Biogenic Next‐Gen CPL Emitters: Strategies with Proteins, Polysaccharides, and Nucleotides
Advanced Optical Materials, EarlyView.Biogenic molecules such as proteins, peptides, saccharides, and DNA can act as natural scaffolds for generating circularly polarized luminescence (CPL). This review highlights recent strategies exploiting these inherently chiral frameworks to achieve light emission with controllable handedness under unpolarized excitation, bridging biological ...
Ricardo Chavez‐Jimenez +4 more
wiley +1 more source