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We recently described the design and synthesis of a novel CD4 binding peptidomimetic as a potential HIV entry inhibitor with a KD value of approximately 35 microM and a high proteolytic stability [A. T. Neffe and B. Meyer, Angew. Chem., Int. Ed., 2004, 43, 2937-2940]. Based on saturation transfer difference (STD) NMR analyses and docking studies of peptidomimetics we now report the rational design, synthesis, and binding properties of 11 compounds with improved binding affinity. Surface plasmon resonance (SPR) resulted in a KD = 10 microM for the best peptidomimetic XI, whose binding affinity is confirmed by STD NMR (KD = 9 microM). The STD NMR determined binding epitope of the ligand indicates a very similar binding mode as that of the lead structure. The binding studies provide structure activity relationships and demonstrate the utility of this approach. 相似文献
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M. Sc. Qiang Wei M. Sc. Tobias Becherer Dr. Stefano Angioletti‐Uberti Prof. Dr. Joachim Dzubiella Dr. Christian Wischke Dr. Axel T. Neffe Prof. Dr. Andreas Lendlein Prof. Dr. Matthias Ballauff Prof. Rainer Haag 《Angewandte Chemie (International ed. in English)》2014,53(31):8004-8031
Protein adsorption is considered to be the most important factor of the interaction between polymeric biomaterials and body fluids or tissues. Water‐mediated hydrophobic and hydration forces as well as electrostatic interactions are believed to be the major factors of protein adsorption. A systematic analysis of various monolayer systems has resulted in general guidelines, the so‐called “Whitesides rules”. These concepts have been successfully applied for designing various protein‐resistant surfaces and are being studied to expand the understanding of protein–material interactions beyond existing limitations. Theories on the mechanisms of protein adsorption are constantly being improved due to the fast‐developing analytical technologies. This Review is aimed at improving these empirical guidelines with regard to present theoretical and analytical advances. Current analytical methods to test mechanistic hypotheses and theories of protein–surface interactions will be discussed. Special focus will be given to state‐of‐the‐art bioinert and biospecific coatings and their applications in biomedicine. 相似文献