Download Biomolecular Interfaces: Interactions, Functions and Drug by Ariel Fernández Stigliano PDF

By Ariel Fernández Stigliano

The booklet specializes in the aqueous interface of biomolecules, an essential but ignored region of biophysical learn. so much organic phenomena can't be absolutely understood on the molecular point with out contemplating interfacial behavior.

The writer offers conceptual advances in molecular biophysics that usher in the appearance of a brand new self-discipline, epistructural biology, based at the interactions of water and bio molecular buildings around the interface. the writer introduces strong theoretical and computational assets with the intention to deal with primary subject matters comparable to protein folding, the physico-chemical foundation of enzyme catalysis and protein institutions. at the foundation of this data, a multi-disciplinary technique is used to engineer healing medications and to permit great advances in specific molecular medication. This ebook should be of curiosity to scientists, scholars and practitioners within the fields of chemistry, biophysics and biomedical engineering.

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Additional info for Biomolecular Interfaces: Interactions, Functions and Drug Design

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The changes in X and Y (ΔX, ΔY) were obtained for homolog pairs identified by their respective PDB accessions and the deviation from ideality was measured as Γ = ΔY – 5ΔX. For all homolog pairs we obtained Γ/Y < 11 %, with Y associated with either homolog. 3 illustrates the tightest evolutionary conservation of the architectural constraint across homolog pairs with nontrivial buttressing differences. Problems 1:1. Identify an electrostatic quantity that evaluates the total departure from Debye polarization for a soluble protein along the entire protein-water interface.

Rise to the dehydron, a significant nonvanishing component P# is expected for residues paired by such hydrogen bonds (cf. Chap. 1). These packing defects expose the backbone polar groups amide (>N–H) and carbonyl (>C=O) to structure-disruptive effects of backbone hydration with the net effect of steering water dipoles into orientations that are not collinear with ~ E. The confined water molecules relinquish some of their hydrogen-bonding possibilities in order to form hydrogen bonds with the backbone polar groups.

7, five wrapping interactions contribute to its affinity for the primary target KIT kinase. A crude estimate would indicate that this contribution to the association free energy is actually significant (*5 × 4 kJ/mol = 20 kJ/mol). Notice that while imatinib was selected for its pharmacological properties that conferred anticancer activity [42], it is unlikely to have emerged from a conventional structure-based design. Matching a nonpolar group in the drug against a carbonyl or amide in the target protein is hardly conceivable in conventional structure-based design as it would entail a hindrance to the hydration of the polar groups.

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