THE IMAGING OF STREPTAVIDIN AND AVIDIN USING SCANNING-TUNNELING-MICROSCOPY

被引:0
作者
COOPER, JM [1 ]
SHEN, J [1 ]
YOUNG, FM [1 ]
CONNOLLY, P [1 ]
BARKER, JR [1 ]
MOORES, G [1 ]
机构
[1] UNIV GLASGOW,DEPT CELL BIOL,GLASGOW G12 8QQ,SCOTLAND
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Streptavidin and avidin were adsorbed onto graphite surfaces and images of their structures were obtained using a scanning tunnelling microscope. Individual protein molecules and their subunits were observed, and their sizes were found to agree closely with measurements from a subunit model based upon the crystal structure of streptavidin. The process of adsorption of streptavidin-FITC and avidin succinylfluorescein isothiocyanate onto the graphite surface was also investigated using fluorescence microscopy.
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页码:106 / 110
页数:5
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