Sökning: "interaction free energy"

Visar resultat 21 - 25 av 188 avhandlingar innehållade orden interaction free energy.

  1. 21. Binding Free Energy Calculations on Ligand-Receptor Complexes Applied to Malarial Protease Inhibitors

    Författare :Martin Nervall; Johan Åqvist; Jonathan Essex; Uppsala universitet; []
    Nyckelord :Molecular biology; Plasmodium falciparum; plasmepsins; linear interaction energy; docking; HIV1 reverse trancriptase; Molekylärbiologi;

    Sammanfattning : Malaria is a widespread disease caused by parasites of the genus Plasmodium. Each year 500 million clinical cases are reported resulting in over one million casualties. The most lethal species, P. falciparum, accounts for ~90% of the fatal cases and has developed resistance to chloroquine. LÄS MER

  2. 22. Computational prediction of receptor-ligand binding affinity in drug discovery

    Författare :John Marelius; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; computer-aided ligand design; molecular dynamics simulation; linear interaction energy; free energy perturbation; scoring function; dihydrofolate reductase; thrombin; serine proteases; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi; Molecular Biotechnology; molekylär bioteknik avd f jonfysik ;

    Sammanfattning : The evaluation of inhibition constants or, more generally, receptor-ligand binding affinities is a crucial part of the drug discovery process. Chemical synthesis and affinity screening is only affordable for a limited number of compounds. This makes computational methods to predict binding affinities of candidate ligands highly desirable. LÄS MER

  3. 23. Electronic and Geometric Structure of Phthalocyanines on Metals

    Författare :Masumeh-Nina Shariati; Maria Novella Piancastelli; Carla Puglia; Kajsa Uvdal; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; monolayer; multilayer; metal-free phthalocyanine; metal phthalocyanine; interaction; intermolecular; adsorbate-substrate; XPS; XAS; STM; DFT; alkali; metallization;

    Sammanfattning : Adsorption of monolayers and multilayers of metal-free and metal phthalocyanines molecules on metal surfaces has been investigated using complementary microscopic and synchrotron-based spectroscopic techniques. It was observed by STM measurements that at monolayer coverage the adsorption direction of the metal-free phthalocyanine molecules with respect to the gold surface vary as a function of temperature, i. LÄS MER

  4. 24. Computational Analysis of Molecular Recognition Involving the Ribosome and a Voltage Gated K+ Channel

    Författare :Martin Andér; Johan Åqvist; Lennart Nilsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; computer simulations; molecular dynamics; ligand binding; binding free energy; linear interaction energy; codon recognition; translation termination; release factor; voltage gated potassium ion channel; Kv1.5; Structural biology; Strukturbiologi; Biochemistry; Biokemi; Biokemi; Biochemistry;

    Sammanfattning : Over the last few decades, computer simulation techniques have been established as an essential tool for understanding biochemical processes. This thesis deals mainly with the application of free energy calculations to ribosomal complexes and a cardiac ion channel. LÄS MER

  5. 25. Computational Studies of Protein Synthesis on the Ribosome and Ligand Binding to Riboswitches

    Författare :Christoffer Lind; Johan Åqvist; Alexander MacKerell Jr; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Binding free energy; Ribosome; Codon reading; Translation initiation; Translation termination; Mitochondrial translation; Release factor; Purine riboswitch; Molecular Dynamics; Free Energy Perturbation; Biology with specialization in Molecular Biotechnology; Biologi med inriktning mot molekylär bioteknik;

    Sammanfattning : The ribosome is a macromolecular machine that produces proteins in all kingdoms of life. The proteins, in turn, control the biochemical processes within the cell. It is thus of extreme importance that the machine that makes the proteins works with high precision. LÄS MER