Live-Cell Protein Modification by Boronate-Assisted Hydroxamic Acid Catalysis
作者:Christopher Adamson、Hidetoshi Kajino、Shigehiro A. Kawashima、Kenzo Yamatsugu、Motomu Kanai
DOI:10.1021/jacs.1c07060
日期:2021.9.22
Selective methods for introducing protein post-translational modifications (PTMs) within living cells have proven valuable for interrogating their biological function. In contrast to enzymatic methods, abiotic catalysis should offer access to diverse and new-to-nature PTMs. Herein, we report the boronate-assisted hydroxamic acid (BAHA) catalyst system, which comprises a protein ligand, a hydroxamic
Inhibitors of the Salicylate Synthase (MbtI) from Mycobacterium tuberculosis Discovered by High-Throughput Screening
作者:Mahalakshmi Vasan、João Neres、Jessica Williams、Daniel J. Wilson、Aaron M. Teitelbaum、Rory P. Remmel、Courtney C. Aldrich
DOI:10.1002/cmdc.201000275
日期:2010.12.3
A simple steady‐state kinetic high‐throughput assay was developed for the salicylatesynthaseMbtI from Mycobacteriumtuberculosis, which catalyzes the first committed step of mycobactin biosynthesis. The mycobactins are small‐molecule iron chelators produced by M. tuberculosis, and their biosynthesis has been identified as a promising target for the development of new antitubercular agents. The assay
A selenium‐catalyzed carbonylative reaction for the synthesis of 2‐benzimidazolones from 2‐nitroanilines has been developed. In this strategy, to avoid the usage of toxic CO gas, TFBen (benzene‐1,3,5‐triyl triformate) was used as a solid and stable CO precursor, and a variety of desired 2‐benzimidazolones were produced in moderate to excellent yields.
Unexpected synthesis of novel 2-pyrone derivatives: crystal structures, Hirshfeld surface analysis and computational studies
作者:Jihad Sebhaoui、Youness El Bakri、Chin-Hung Lai、Subramani Karthikeyan、El Hassane Anouar、Joel T. Mague、El Mokhtar Essassi
DOI:10.1080/07391102.2020.1780943
日期:2021.9.2
arising in crystal packing are rationalized by means of the Hirshfeldsurfaceanalysis method. The major intermolecular contacts in the Hirshfeldsurfaces of I–III are from H…H contacts. In addition, binding modes of I–III within Tyrosine-protein kinase JAK2 were investigated using molecular docking and molecular dynamics simulation studies. Communicated by Ramaswamy H. Sarma
Acinetobacter baumannii OxPhos inhibitors as selective anti-infective agents
作者:Harvey Rubin、Trevor Selwood、Takahiro Yano、Damian G. Weaver、H. Marie Loughran、Michael J. Costanzo、Richard W. Scott、Jay E. Wrobel、Katie B. Freeman、Allen B. Reitz
DOI:10.1016/j.bmcl.2014.11.020
日期:2015.1
The Gram-negative bacterium Acinetobacter baumannii is an opportunistic pathogen in humans and infections are poorly treated by current therapy. Recent emergence of multi-drug resistant strains and the lack of new antibiotics demand an immediate action for development of new anti-Acinetobacter agents. To this end, oxidative phosphorylation (OxPhos) was identified as a novel target for drug discovery research. Consequently, a library of similar to 10,000 compounds was screened using a membrane-based ATP synthesis assay. One hit identified was the 2-iminobenzimidazole 1 that inhibited the OxPhos of A. baumannii with a modestly high selectivity against mitochondrial OxPhos, and displayed an MIC of 25 mu M (17 mu g/mL) against the pathogen. The 2-iminobenzimidazole 1 was found to inhibit the type 1 NADH-quinone oxidoreductase (NDH-1) of A. baumannii OxPhos by a biochemical approach. Among various derivatives that were synthesized to date, des-hydroxy analog 5 is among the most active with a relatively tight SAR requirement for the N'-aminoalkyl side chain. Analog 5 also showed less cytotoxicity against NIH3T3 and HepG2 mammalian cell lines, demonstrating the potential for this series of compounds as anti-Acinetobacter agents. Additional SAR development and target validation is underway. (C) 2014 Elsevier Ltd. All rights reserved.