Biological activity of Seryl-histidine dipeptide, Seryl-histidine analogues and Seryl-histidine derivatives & Screening And Investigation Of Methamidopho(MAP) Degrading-bacteria

Abstract

本研究首先利用变性聚丙烯酰胺凝胶电泳、荧光分光光度技术、圆二色光谱技术、多级质谱技术、竞争法酶联免疫技术等对丝组二肽的蛋白质切割功能从活性定量、底物选择性等方面进行了较为深入的研究,并对组丝二肽与蛋白质的相互作用进行了较为全面的对比研究。发现丝组二肽在中性环境下可以4.63×10-4mM/hr的速度切割蛋白质。在二级结构选择性上,丝组二肽对β折叠以及自由LOOP区含量较高的蛋白质具有较高的切割活性。在一级结构上,丝组二肽切割蛋白的位点比较偏向甘氨酸。并且在此基础上,进一步研究了一系列非肽类酰胺和一种聚酰胺/丝组二肽缀合物与核酸,蛋白质的相互作用。发现了丝组二肽不同基团在核酸切割过程中具有不同的...In our study, SDS-PAGE, Fluorescence spectrophotometry, CD, ESI/MS/MS, competitive ELSIA, and biosense techniques were used to investigate the interactions of Seryl-histidine or Histidyl-serine dipeptide with proteins and the interactions of derivatives and analogues of Ser-His or a pair of polyamide/Ser-His conjugates with DNA, proteins. We found the rate of 1mM SH cleavage on GFP in BRbuffer at ...学位:理学硕士院系专业:化学化工学院化学系_有机化学学号:20022504

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