Hapten Design for Antibody-Catalyzed Decarboxylation and Ring-Opening Reactions of Benzisoxazoles
作者:Masha V. Sergeeva、Vihra Yomtova、Adrian Parkinson、Marjolein Overgaauw、Rikus Pomp、Arjen Schots、Anthony J. Kirby、Riet Hilhorst
DOI:10.1002/ijch.199600024
日期:——
Three benzisoxazole haptens designed to elicit antibody binding sites with widely differing polarity have been synthesized and used to induce antibodies in mice. Monoclonal antibodies were prepared using hybridoma technology, and screened for catalysis of the ring-opening isomerization and/or decarboxylation of a series of related benzisoxazoles and their 3-carboxy-derivatives. No catalysis of decarboxylation
已经合成了三种旨在引发极性差异很大的抗体结合位点的苯并异恶唑半抗原,并将其用于诱导小鼠中的抗体。使用杂交瘤技术制备单克隆抗体,并筛选其催化一系列相关苯并异恶唑及其3-羧基衍生物的开环异构化和/或脱羧反应。没有观察到脱羧的催化作用,但是针对三种半抗原获得的总共47种抗体中有4种催化了异构化过程。针对3-乙酰基苯并恶唑结构的12种抗体中,没有5种具有催化活性。但针对3-异丙烯基苯并恶唑6的24个中的一个增加了6-硝基苯并恶唑的开环速率,针对具有3-ami基的苯并异恶唑7的11种抗体中有5种对6-硝基或6-酰基氨基苯并恶唑具有中等活性。竞争性结合研究表明,异丙烯基半抗原诱导的至少某些抗体确实具有可识别的疏水性结合位点。