Metalloporphyrin receptors for histidine-containing peptides
摘要:
Two new ditopic metalloporphyrin receptors constructed by combining metalloporphyrin with crown ethers have been prepared and characterized. H-1 NMR and MS spectra confirmed the complexation of receptor with peptide driven by coordination interaction and hydrogen bonding. UV/vis experiments revealed that the receptors exhibited high binding affinity to histidine-containing peptides. These receptors could differentiate short peptides of C-terminal histidine and N-terminal histidine and formed the most stable complexes with tripeptide. (C) 2014 Hui Liu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Combinatorial Evolution of Fast-Conducting Highly Selective K<sup>+</sup>-Channels via Modularly Tunable Directional Assembly of Crown Ethers
作者:Changliang Ren、Jie Shen、Huaqiang Zeng
DOI:10.1021/jacs.7b04335
日期:2017.9.13
of highly efficient K+-selective channels. In our strategy, a highly robust supramolecular H-bonded 1D ensemble was used to order the appended crownethers in such a way that they roughly stack on top of each other to form a channel for facilitated ion transport across the membrane. Among 15 channels that all prefer K+ over Na+ ions, channel molecule 5F8 shows the most pronounced optimum for K+ while
C3-Symmetric, amino acid based organogelators and thickeners: a systematic study of structure–property relations
作者:Maaike de Loos、Jan H. van Esch、Richard M. Kellogg、Ben L. Feringa
DOI:10.1016/j.tet.2007.02.066
日期:2007.7
A class of C-3-symmetric amino acid based organogelators and thickeners featuring a rigid core have been developed. Structural variation yielded a number of compounds, the aggregation behaviour and resulting aggregates and gels of which were studied by FTIR spectroscopy, dropping ball measurements, differential scanning calorimetry and transmission electron microscopy. These studies showed that the nature of the core unit, the type of hydrogen-bonding units and the applied amino acids have a strong influence on the interactions, resulting in large differences in aggregation properties, thermal stability and morphology between the various compounds. The results provide a basis for a better understanding of the relation between aggregate/gel properties and molecular structure. The structural variation available for these compounds allows fine-tuning of the gelators with respect to aggregation behaviour and gel properties. (c) 2007 Published by Elsevier Ltd.
The identification of a potent, water soluble inhibitor of lipoprotein-associated phospholipase A2
作者:Helen F. Boyd、Beverley Hammond、Deirdre M.B. Hickey、Robert J. Ife、Colin A. Leach、V.Ann Lewis、Colin H. Macphee、Kevin J. Milliner、Ivan L. Pinto、Stephen A. Smith、Ian G. Stansfield、Colin J. Theobald、Caroline M. Whittaker
DOI:10.1016/s0960-894x(01)00038-5
日期:2001.3
Modification of the pyrimidone 5-substituent in a series of 1-((amidolinked)-alkyl)-pyrimidones, lipophilic inhibitors of lipoprotein-associated phospholipase A(2), has given inhibitors of nanomolar potency and improved physicochemical properties. Compound 23 was identified as a potent, highly water soluble, CNS penetrant inhibitor suitable for intravenous administration. (C) 2001 Elsevier Science Ltd. All rights reserved.
GELLING AGENTS
申请人:Applied NanoSystems B.V.
公开号:EP1506168B1
公开(公告)日:2008-04-30
Semi-Synthetic GLP-1 Peptide-FC Fusion Constructs, Methods and Uses
申请人:Heavner George
公开号:US20090181037A1
公开(公告)日:2009-07-16
The invention relates to semi-synthetic biologic molecules which are conjugates of GLP-1 peptides and human multimeric proteins or protein fragments, such as an antibody Fc joined by a non-peptidyl bond. The constructs demonstrate biological activity and are useful making therapeutic compositions and therapeutic formulations for use in treating diseases characterized by lack of glycemic control.