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Wyniki wyszukiwania dla: molecular biology and genetics
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PHYSICAL BIOLOGY
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RNA Biology
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POLAR BIOLOGY
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PHARMACEUTICAL BIOLOGY
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Advanced Biology
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TUMOR BIOLOGY
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SYSTEMATIC BIOLOGY
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Molecular biaxiality determines the helical structure – infrared measurements of the molecular order in the nematic twist-bend phase of difluoro terphenyl dimer
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Conformational studies of [Nphe5]SFTI-1 by means of 2D NMR spectroscopy in conjunction with molecular dynamics calculations
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Intramolecular transformation of an antifungal antibiotic nystatin A1 into its isomer, iso-nystatin A1 - structural and molecular modeling studies
PublikacjaNystatin A1, a polyene macrolide antifungal antibiotic, in a slightly basic or acidic solution undergoes an intramolecular transformation, yielding a structural isomer, the translactonization product, iso-nystatin A1 with lactone ring diminished by two carbon atoms. Structural evidence is provided by advanced NMR and Mass Spectrometry (MS) studies. Molecular dynamics simulations and quantum mechanics calculations gave the insight...
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Are the short cationic lipopeptides bacterial membrane disruptors? Structure-Activity Relationship and molecular dynamic evaluation
PublikacjaShort cationic lipopeptides are amphiphilic molecules that exhibit antimicrobial activity mainly against Grampositives. These compounds bind to bacterial membranes and disrupt their integrity. Here we examine the structure-activity relation (SAR) of lysine-based lipopeptides, with a prospect to rationally design more active compounds. The presented study aims to explain how antimicrobial activity of lipopeptides is affected by...
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Molecular basis of the osmolyte effect on protein stability: a lesson from the mechanical unfolding of lysozyme
PublikacjaOsmolytes are a class of small organic molecules that shift the protein folding equilibrium. For this reason, they are accumulated by organisms under environmental stress, and find applications in biotechnology where proteins need to be stabilized or dissolved. However, despite years of research, debate continues over the exact mechanisms underpinning the stabilizing and denaturing effect of osmolytes. Here, we simulated the mechanical...
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Solubility of dapsone in deep eutectic solvents: Experimental analysis, molecular insights and machine learning predictions
PublikacjaBackground. Dapsone (DAP) is an anti-inflammatory and antimicrobial active pharmaceutical ingredient used to treat, e.g., AIDS-related diseases. However, low solubility is a feature hampering its efficient use. Objectives. First, deep eutectic solvents...
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Molecular transformation of dissolved organic matter in manganese ore-mediated constructed wetlands for fresh leachate treatment
PublikacjaThe organic matter (OM) and nitrogen in Fresh leachate (FL) from waste compression sites pose environmental and health risks. Even though the constructed wetland (CW) can efficiently remove these pollutants, the molecular-level transformations of dissolved OM (DOM) in FL remain uncertain. This study reports the molecular dynamics of DOM and nitrogen removal during FL treatment in CWs. Two lab-scale vertical-flow CW systems were...
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Computational Study of Molecular Interactions in ZnCl2(urea)2 Crystals as Precursors for Deep Eutectic Solvents
PublikacjaDeep eutectic solvents (DESs) are now enjoying an increased scientific interest due to their interesting properties and growing range of possible applications. Computational methods are at the forefront of deciphering their structure and dynamics. Type IV DESs, composed of metal chloride and a hydrogen bond donor, are among the less studied systems when it comes to their understanding at a molecular level. An important example...
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Specific Binding of Cholesterol to the Amyloid Precursor Protein: Structure of the Complex and Driving Forces Characterized in Molecular Detail
PublikacjaC99 is the C-terminal membrane-bound fragment of the amyloid precursor protein that is cleaved by γ-secretase to release Aβ peptides, the hallmark of Alzheimer’s disease (AD). Specific interactions of C99 with cholesterol have been proposed to underlie the recognized role of cholesterol in promoting amyloidogenesis. By using molecular dynamics simulations, we studied cholesterol binding to C99 in a lipid bilayer. We determined...
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Theoretical Design of the Molecular Structure of Bent-Core Mesogens with Large Second-Order Nonlinear Optical Properties
PublikacjaABSTRACT: The first hyperpolarizability of two series of moleculeswith bent-shaped structures has been calculated at the ab initio level.The two series consist of carboxyl derivatives for which somemolecules are known to exhibit banana phases and of their sulfinatehomologues that have not been synthesized yet. The final purpose isto reveal the relevance or not in synthesizing these latter molecules.The strategy is based on reporting...
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Molecular dynamics simulations reveal the balance of forces governing the formation of a guanine tetrad—a common structural unit of G-quadruplex DNA
PublikacjaG-quadruplexes (G4) are nucleic acid conformations of guanine-rich sequences, in which guanines are arranged in the square-planar G-tetrads, stacked on one another. G4 motifs form in vivo and are implicated in regulation of such processes as gene expression and chromosome maintenance. The structure and stability of various G4 topologies were determined experimentally; however, the driving forces for their formation are not fully...
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Jan Domaradzki dr hab.
Osobysocjolog, adiunkt w Katedrze Nauk Społecznych Uniwersytetu Medycznego im. Karola Marcinkowskiego w Poznaniu, kierownik Pracowni Socjologii Zdrowia i Patologii Społecznych. Habilitację otrzymałem w roku 2019 w Instytucie Socjologii UAM na podstawie rozprawy: Społeczne konstruowanie genetyki. Reprezentacje biotechnologii w polskim czasopiśmiennictwie opiniotwórczym. Doktorat obroniłem w roku 2008 w Instytucie Socjologii, UKSW na...
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Collagen Type II—Chitosan Interactions as Dependent on Hydroxylation and Acetylation Inferred from Molecular Dynamics Simulations
PublikacjaChitosan–collagen blends have been widely applied in tissue engineering, joints diseases treatment, and many other biomedical fields. Understanding the affinity between chitosan and collagen type II is particularly relevant in the context of mechanical properties modulation, which is closely associated with designing biomaterials suitable for cartilage and synovial fluid regeneration. However, many structural features influence...
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Palladium versus Platinum: The Metal in the Catalytic Center of a Molecular Photocatalyst Determines the Mechanism of the Hydrogen Production with Visible Light
PublikacjaTo develop highly efficient molecular photocatalysts for visible light-driven hydrogen production, a thorough understanding of the photophysical and chemical processes in the photocatalyst is of vital importance. In this context, in situ X-ray absorption spectroscopic (XAS) investigations show that the nature of the catalytically active metal center in a (N^N)MCl2 (M=Pd or Pt) coordination sphere has a significant impact on the...
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Encapsulation of an anticancer drug Isatin inside a host nano-vehicle SWCNT: a molecular dynamics simulation
PublikacjaThe use of carbon nanotubes as anticancer drug delivery cargo systems is a promising modality as they are able to perforate cellular membranes and transport the carried therapeutic molecules into the cellular components. Our work describes the encapsulation process of a common anticancer drug, Isatin (1H-indole-2,3-dione) as a guest molecule, in a capped single-walled carbon nanotube (SWCNT) host with chirality of (10,10). The...
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Molecular Characterisation of Uterine Endometrial Proteins during Early Stages of Pregnancy in Pigs by MALDI TOF/TOF
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Role of electronic correlations in the transport characteristics of molecular junctions
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An efficient molecular docking using conformational space annealing
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Lipid-protein interactions in membranes: a molecular modelling study
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Reply to “Comment on ‘Molecular Origin of Anticooperativity in Hydrophobic Association'”
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Molecular factors involved in the development of diabetic foot syndrome.
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Shape resonance of the ethylene anion stabilized in a molecular trap
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Plasma Treatment as an Unconventional Molecular Magnet Engineering Method
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Molecular diagnosis in type I epithelial ovarian cancer
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Molecular dynamics simulations of ultraprecision machining of fcc monocrystals
PublikacjaArtykuł zawiera wyniki wielkoskalowych symulacji dynamiczno-molekularnych ultraprecyzyjnego skrawania monokryształów metali niedeformowalnym narzędziem. Zmiennymi parametrami symulacji były: szybkość i głębokość skrawania, temperatura, orientacja krystalograficzna skrawanego kryształu oraz kształt narzędzia.Analizie poddano zmiany strukturalne w obrabianym materiale.
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Low-Molecular-Weight Aldehyde Inhibitors of Cathepsin G
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Cellular and Molecular Bioengineering
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CELLULAR AND MOLECULAR NEUROBIOLOGY
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DIAGNOSTIC MOLECULAR PATHOLOGY
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CURRENT MOLECULAR MEDICINE
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Cellular & Molecular Immunology
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MOLECULAR BRAIN RESEARCH
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AIMS Molecular Science
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Clinical and Molecular Hepatology
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Molecular Physics Reports
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EXPERIMENTAL AND MOLECULAR PATHOLOGY
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Frontiers in Molecular Neuroscience
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ENVIRONMENTAL AND MOLECULAR MUTAGENESIS
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Current Molecular Pharmacology
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Molecular Oral Microbiology
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MOLECULAR ECOLOGY NOTES
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EXPERIMENTAL AND MOLECULAR MEDICINE
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Molecular & Cellular Biomechanics
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