Search for dissertations about: "protein–ligand interaction"

Found 4 swedish dissertations containing the words protein–ligand interaction.

  1. 1. A first-principles approach to protein–ligand interaction

    Author : Pär Söderhjelm; Beräkningskemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; solvation; exchange repulsion; polarizable force fields; polarization; molecular mechanics; quantum chemistry; intermolecular interactions; protein–ligand interaction;

    Abstract : It is still impossible to make an accurate, purely theoretical prediction of the free energy of a ligand binding to a protein in aqueous environment. The two main problems are the immense number of nuclear configurations contributing to the binding free energy and the impossibility to apply accurate quantum-chemical methods to such a large system, even for a single configuration. READ MORE

  2. 2. QM/MM free-energy perturbation and other methods to estimate ligand-binding affinities

    Author : Martin Olsson; Beräkningskemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer-aided drug design; protein–ligand binding; molecular dynamics; free-energy perturbation; QM MM; convergence;

    Abstract : Experimental drug discovery is very time-consuming, risky and comes at a huge cost, typically several billion USD per drug. Even though decades of experimental drug discovery have provided cures of many diseases, there are still diseases for which there is no effective drug available. READ MORE

  3. 3. Free-energy studies of ligand-binding affinities

    Author : Vilhelm Ekberg; Beräkningskemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; free energy perturbation; drug design; ligand-binding affinity; entropy; molecular mechanics; molecular dynamics;

    Abstract : In drug discovery, it is of utmost importance to accurately calculate the free energies of binding ligands to various protein targets, such as enzymes and receptors. We have assessed and used computational tools for this aim, most of them based on molecular dynamics (MD) simulations. READ MORE

  4. 4. Analysis of noncovalent and covalent protein-ligand complexes by electrospray ionisation mass spectrometry

    Author : Gustav Sundqvist; Harry Brumer; Per Andrén; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; noncovalent complex; droplet fission; nano-electrospray ionisation; mass spectrometry; Analytical chemistry; Analytisk kemi;

    Abstract : In this thesis, the application of electrospray ionisation mass spectrometry (ESI-MS) to the analysis of intact proteins is demonstrated. In papers I and II, the use of ESI-MS for the analysis of noncovalent protein-ligand complexes were discussed. READ MORE