[EN] THIOPHOSPHORODICHLORIDATE REAGENTS FOR CHEMOSELECTIVE HISTIDINE BIOCONJUGATION<br/>[FR] RÉACTIFS DE THIOPHOSPHORODICHLORIDATE POUR BIOCONJUGAISON CHIMIOSÉLECTIVE D'HISTIDINE
申请人:UNIV CALIFORNIA
公开号:WO2020086311A1
公开(公告)日:2020-04-30
Proteins are labeled by contacting the protein with a thiophosphorodichloridate reagent under conditions to effect chemoselective histidine conjugation. This technology provides numerous applications, including probing and enhancing protein function using histidine-directed chemistry. For example, our bioconjugation strategy can be used to generate bioconjugates on polyhistidine tags commonly found in recombinant proteins, as well as on single histidine residues. These bioconjugates, such as antibody-drug conjugates, immobilized antibodies or enzymes, PEGylated proteins and so on, can be used in pharmaceutics and diagnostics.
Synthesis of 2-Alkynyl Tetramethylphosphorodiamidates; A New Route to 1-Bromo-2-alkynes
作者:G. STURTZ、J. P. PAUGAM、B. CORBEL
DOI:10.1055/s-1974-23426
日期:——
Bioinspired Thiophosphorodichloridate Reagents for Chemoselective Histidine Bioconjugation
作者:Shang Jia、Dan He、Christopher J. Chang
DOI:10.1021/jacs.8b11912
日期:2019.5.8
Site-selective bioconjugation to native protein residues is a powerful tool for proteinfunctionalization, with cysteine and lysine side chains being the most common points for attachment owing to their high nucleophilicity. We now report a strategy for histidine modification using thiophosphorodichloridate reagents that mimic post-translational histidine phosphorylation, enabling fast and selective
与天然蛋白质残基的位点选择性生物偶联是蛋白质功能化的有力工具,半胱氨酸和赖氨酸侧链由于其高亲核性而成为最常见的连接点。我们现在报告了一种使用硫代磷酰二氯试剂进行组氨酸修饰的策略,该试剂模拟翻译后组氨酸磷酸化,能够在温和条件下快速和选择性地标记蛋白质组氨酸,其中可以通过铜辅助炔-叠氮环加成 (CuAAC) 化学引入各种有效载荷。我们确定这些试剂在共价修饰 His 标签方面特别有效,His 标签是促进蛋白质纯化的常见基序,如聚精氨酸货物的选择性附着以增强蛋白质吸收到活细胞中所示。
Trifunctional thermosetting monomer with propargyl and phthalonitrile groups
作者:M. V. Yakovlev、O. S. Morozov、E. S. Afanaseva、B. A. Bulgakov、A. V. Babkin、A. V. Kepman、V. V. Avdeev
DOI:10.1007/s11172-020-3020-3
日期:2020.11
A new monomer containing thermosetting groups of two types, namely, propargyl ether and phthalonitrile, in the structure of the molecule was synthesized and studied. It was found that thermal polymerization was accompanied by the degradation of the monomer with propargyl ether decomposition. This problem can be solved using catalysts based on Cu(i) favoring the polymerization at both the propargyl group and phthalonitrile fragments. The cured monomer has a non-porous structure and high thermal properties (Vicat softening temperature 395 °C, T5% 451 °C). The low viscosity of the melt (<200 mPa s at 120 °C) and low glass-transition temperature (9 °C) of the monomer make it possible to use it for the formation of composite materials by vacuum infusion or injection into a mold.