Authors: Xiuyuan Zhang Kuo He Ruiping Zhao Tingting Feng Dong Wei
Publish Date: 2016/04/29
Volume: 9, Issue: 12, Pages: 3278-3286
Abstract
A phage display library of single chain variable fragment scFv antibodies was constructed to screen specific scFv antibodies against amatoxins One recombinant scFv antibody with high specificity for amatoxins termed scFvA4 was isolated from the library by biopanning SDSPAGE analysis showed that the soluble scFvA4 protein was expressed successfully and the protein posed relatively good specificity with an IC50 of 7748 ng/mL and IC15 of 191 ng/mL using indirect competitive ELISA icELISA On the basis of the expressed scFvA4 protein a rapid and simple new immunoassay using surface plasmon resonance SPR sensor for the detection of amatoxins was developed The IC50 and IC15 of new immunoassay were 766 and 017 ng/mL The sensitivity of immunoassay using SPR sensor was about 10 times that of icELISA These results showed the potential usefulness and advantages of new immunoassay using SPR sensor for the detection of toxinsXiuyuan Zhang declares that he/she has no conflict of interest Kuo He declares that he/she has no conflict of interest Ruiping Zhao declares that he/she has no conflict of interest Tingting Feng declares that he/she has no conflict of interest Dong Wei declares that he/she has no conflict of interest
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