High-Throughput Discovery of <i>Mycobacterium tuberculosis</i> Protein Tyrosine Phosphatase B (MptpB) Inhibitors Using Click Chemistry
作者:Lay Pheng Tan、Hao Wu、Peng-Yu Yang、Karunakaran A. Kalesh、Xiaohua Zhang、Mingyu Hu、Rajavel Srinivasan、Shao Q. Yao
DOI:10.1021/ol9023419
日期:2009.11.19
A ∼3500-member library of bidentate inhibitors against protein tyrosine phosphatases (PTPs) was rapidly assembled using click chemistry. Subsequent high-throughput screening had led to the discovery of highlypotent (Ki as low as 150 nM) and selectiveMptpBinhibitors, some of which represent the most potentMptpBinhibitors developed to date.
Rapid synthesis of Abelson tyrosine kinase inhibitors using click chemistry
作者:Karunakaran A. Kalesh、Kai Liu、Shao Q. Yao
DOI:10.1039/b913333j
日期:——
Protein kinases catalyze the phosphorylation of serine, threonine, tyrosine and histidine residues in proteins. Aberrant regulation of kinase activity has been implicated in many diseases including cancer. Thus development of new strategies for kinase inhibitor design remains an active area of research with direct relevance to drug development. Abelson (Abl) tyrosine kinase is one of the Src-family of tyrosine kinases and is directly implicated in Chronic Myelogenous Leukemia (CML). In this article, we have, for the first time, developed an efficient method for the construction of small molecule-based bisubstrate inhibitors of Abl kinase using click chemistry. Subsequent biochemical screenings revealed a set of moderately potent inhibitors, a few of which have comparable potency to Imatinib (an FDA-approved drug for treatment of chronic myeloid leukemia) against Abl.
蛋白激酶催化蛋白质中丝氨酸、苏氨酸、酪氨酸和组氨酸残基的磷酸化。激酶活性的异常调节与包括癌症在内的多种疾病有关。因此,激酶抑制剂设计新策略的开发仍然是一个活跃的研究领域,与药物开发直接相关。阿贝尔森(Abl)酪氨酸激酶是 Src 家族酪氨酸激酶之一,与慢性骨髓性白血病(CML)直接相关。在这篇文章中,我们首次利用点击化学方法开发出了一种构建基于小分子的 Abl 激酶双底物抑制剂的有效方法。随后的生化筛选发现了一组中等效力的抑制剂,其中一些抑制剂对 Abl 的效力可与伊马替尼(美国 FDA 批准用于治疗慢性髓性白血病的药物)相媲美。
PROCÉDÉ DE DÉTECTION DES BACTÉRIES SELON LEUR SIGNAL GRAM DANS UN ÉCHANTILLON COMPLEXE
申请人:Maat Pharma
公开号:EP3807416A1
公开(公告)日:2021-04-21
[EN] METHOD FOR DETECTING BACTERIA ACCORDING TO THE GRAM SIGNAL THEREOF IN A COMPLEX SAMPLE<br/>[FR] PROCÉDÉ DE DÉTECTION DES BACTÉRIES SELON LEUR SIGNAL GRAM DANS UN ÉCHANTILLON COMPLEXE
申请人:MAAT PHARMA
公开号:WO2019243714A1
公开(公告)日:2019-12-26
La présente invention concerne un procédé de détection de la proportion de bactéries à Gram positif et à Gram négatif dans un échantillon complexe. La détection des bactéries se fait selon leur signal Gram. L'invention permet de distinguer des espèces de bactéries à Gram positif et à Gram négatif dans un échantillon complexe. Elle concerne également un kit de marquage des bactéries à Gram positif et à Gram négatif, notamment pour utilisation en cytométrie en flux, notamment pour des échantillons complexes comme des échantillons de microbiote - humain ou animal.
Dual Chemical Modification of a Polytheonamide Mimic: Rational Design and Synthesis of Ion-Channel-Forming 48-mer Peptides with Potent Cytotoxicity
the chemical preparation and biologicalevaluation of seven analogues 3–9 of 2 are reported. Compounds 3–9 were modified at their N terminus and/or the sidechain of residue 44 of 2 to alter their physicochemical properties. The total synthesis of 3–9 was accomplished in a unified fashion by a combination of solid‐phase and solution‐phase chemistry. Systematic evaluation of the hydrophobicities, single‐channel