首页> 外文期刊>Journal of Molecular Biology >Catalysis of decarboxylation by a preorganized heterogeneous microenvironment: Crystal structures of abzyme 21D8
【24h】

Catalysis of decarboxylation by a preorganized heterogeneous microenvironment: Crystal structures of abzyme 21D8

机译:预组织的异质微环境对脱羧的催化作用:Abzyme 21D8的晶体结构

获取原文
获取原文并翻译 | 示例
           

摘要

Antibody 21D8 catalyzes the solvent-sensitive decarboxylation of 3-carboxybenzisoxazoles. The crystal structure of chimeric Fab 21D8 with and without hapten at 1.61 Angstrom and 2.10 Angstrom, respectively, together with computational analysis, shows how a melange of polar and non-polar sites are exploited to achieve both substrate binding and acceleration of a reaction normally facilitated by purely aprotic dipolar media. The striking similarity of the decarboxylase and a series of unrelated esterase antibodies also highlights the chemical versatility of structurally conserved anion binding sites and the relatively subtle changes involved in fine-tuning the immunoglobulin pocket for recognition of different ligands and catalysis of different reactions. (C) 2000 Academic Press. [References: 55]
机译:抗体21D8催化3-羧基苯并恶唑类溶剂敏感的脱羧反应。具有半抗原和不具有半抗原的嵌合Fab 21D8的晶体结构分别为1.61埃和2.10埃,以及计算分析表明,如何利用极性和非极性部位的混合物来实现底物结合和通常促进反应加速通过纯非质子偶极介质。脱羧酶和一系列不相关的酯酶抗体的惊人相似性也突出了结构保守的阴离子结合位点的化学通用性,以及微调免疫球蛋白袋以识别不同的配体和催化不同反应所涉及的相对微妙的变化。 (C)2000学术出版社。 [参考:55]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号