链亲和素结合磁珠分离技术的新方法，为研究DNA ？
Streptavidin system and magnetic beads isolation technique, providing a new way to study DNA?
拟获得在大肠杆菌中能高效可溶表达的转铁蛋白受体单链抗体与链亲和素（SA）的重组融合蛋白。
To obtain the anti-transferrin receptor scFv and streptavidin(SA) recombinant fusion proteins which were high-efficiently and solubly expressed in E.
链霉亲和素与它的配体具有显著的高亲和力。
Streptavidin has a remarkably high affinity for its natural ligand, biotin.
采用链霉亲和素包被磁纳米粒子，将生物素标记的特异性抗体偶联在磁纳米粒子上，制备出高特异性的磁纳米探针；
The magnetic nanoparticle probe was prepared by specifically connecting the streptavidin-conjugated magnetic nanoparticles and the antibody of analyte via the strong streptavidin-biotin interaction.
可通过利用一种可调控的连续的微粒子流可促进对包被荧光微粒子的链霉亲和素特异性斑点的结合。
Specific binding of streptavidin coated fluorescent microparticles to the spots was promoted by applying a controlled continuous microparticle flow.
方法：采用链酶亲和素-过氧化物酶标记免疫组织化学方法，在PCNA阳性标本中测定增殖指数(PI)。
Methods the PCNA index (PI) was detected by the immunohistochemistry method of streptavidin in the PCNA positive samples.
该蛋白质与亲和素的结合与生物素及亲和素的糖链部分无关。
The binding of the protein to avidin is not related to biotin or the oligosaccharide chain of avidin.
链霉素亲和素是从链霉亲生物素蛋白中分离出来的53，000道尔顿的同源四聚体（3），每一个链霉素亲和素的亚基可以与维生素形成高亲和力非共价结合。
Streptavidin is a 53,000 dalton tetrameric protein purified from the bacterium Streptomyces avidinii (3). Each subunit binds to biotin with extremely high affinity.
链霉素亲和素是从链霉亲生物素蛋白中分离出来的53，000道尔顿的同源四聚体（3），每一个链霉素亲和素的亚基可以与维生素形成高亲和力非共价结合。
Streptavidin is a 53,000 dalton tetrameric protein purified from the bacterium Streptomyces avidinii (3). Each subunit binds to biotin with extremely high affinity.
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