金属硫蛋白聚合中阳离子作用机制的研究

来源 :物理化学学报 | 被引量 : 0次 | 上传用户:jg1983
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
It has been proven by experiments that cations play a very important role in metallothioneins polymerization. In this paper, three kinds of metallothioneines including MT-Ⅱfrom rat liver, MT-Ⅰand MT-Ⅱfrom rabbit have been investigated.From the analyses of electrostatic potential, two binding sites of cations can be determined:The first one is located between the dimer interface; the other one is located in the negative electrostatic potential hole.The binding capacity between two monomers in a dimer can be regulated by these cations to some extent. It has been proven by experiments that cations play a very important role in metallothioneins polymerization. In this paper, three kinds of metallothioneines including MT-II from rat liver, MT-I and MT-II from rabbit have been investigated. From the analysis of electrostatic potential, two binding sites of cations can be determined: The first one is located between the dimer interface; the other one is located in the negative electrostatic potential hole. The binding capacity between two monomers in a dimer can be regulated by these cations to some extent.
其他文献
肝移植手术的最关键一步是获取新鲜健康,动静脉及胆管管道完备,且经过保存后能恢复良好功能的供体肝脏.供肝的选择、切取、保存、修整技术对于移植术后移植肝的存活、功能恢
乙型肝炎病毒(HBV)所致的临床感染如急性肝炎、慢性肝炎、重型型炎、无症状HBsAg携带等,最终导致终末期肝病.由于目前对HBV尚缺乏有效的治疗手段,故这些患者最终需要接受肝移
近读五邑大学中文系教授章继光新著,1999年8月由湖南岳麓书社出版的(以下简称“论稿”),得益匪浅,爱不释手.它全面、系统地对白沙诗学进行了论述,在白沙诗学研究方面取得了新
通过对鄂尔多斯盆地西南缘彬长地区烃源岩、储层特征、生储盖组合以及运移动力等综合地质条件进行分析,总结延长组长7致密油油藏分布特征及主控因素.结果表明,彬长地区延长组
根据新近提出的氟自由基理论,围绕氟中毒对胃肠道、肝、肾、甲状腺、甲状旁腺、肾上腺、胰岛、脑、生殖系统等非骨相损害的最新研究成果作了较为全面的论述,为人们提供了除骨
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
期刊
杯芳烃(Calixarenes)[1]是由苯酚单体通过亚甲基单元连接起来的一类性质稳定的环状低聚物.由于它的独特结构特点以及由此表现出来的特有性能,使之已成为继冠醚和环糊精之后的
应用MNDO方法对CTX衍生物进行了量子化学计算 ,得到了它们的电子结构信息.根据构象分析研究了它们的空间结构.推测出它们的活性部位 ,探讨了与受体结合时的作用方式 ,讨论了
Polyaniline-7,7,8,8-tetracyanoquinodimethanane (PANI-TCNQ) complex thin films were successfully grown by vacuum evaporation.The atomic force microscope (AFM) im
用柠檬酸溶胶-凝胶法制备钙钛矿型La0.6Sr0.4MnO3氧化物,并用Ag对其进行修饰,制得Ag/La0.6Sr0.4MnO3系列催化剂.结果表明,6%Ag/La0.6Sr0.4MnO3催化剂上甲烷或甲醇氧化转化95%