节点文献
金属-血清白蛋白的结构研究(Ⅷ)──HSA和BSA中锌离子中心的荧光EXAFS研究
Studies on the Structure of Metal Serum Albumin(Ⅷ)──A Fluorescence EXAFS Study of the Zinc Ion Centers of Zn(Ⅱ)-HSA and Zn(Ⅱ)-BSA Complexes
【摘要】 荧光EXAFS数据证实,在HSA和BSA中,锌离子与第一配位层原子的核间距分别为0.201nm和0.203nm,配位数近似为4,很可能为4个氮原子配位,胱氨酸硫原子参与配位的可能性基本排除.
【Abstract】 It has been proved that in the Zn(Ⅱ)-HSA and Zn(Ⅱ)-BSA complexes, the in-ternuclear distance between Zn(Ⅱ) and its nearest binding atoms is 0.201 nm and 0.203 nm, the coordinate number is about four, the coordinate atoms are probably nitrogen atoms, and the possibility of sulfur of cysteine binding to Zn(Ⅱ) is basically excluded. The results are consequently discussed.
【关键词】 荧光EXAFS;
人血清白蛋白;
牛血清白蛋白;
锌离子中心;
【Key words】 Fluorescence EXAFS; Human serum albumin; Bovine serum albumin; Zinc ion center;
【Key words】 Fluorescence EXAFS; Human serum albumin; Bovine serum albumin; Zinc ion center;
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,1997年06期
- 【分类号】O614
- 【被引频次】29
- 【下载频次】196