CHEN Hong-zhang,ZENG Hao,MAO Xu-hu,LUO Ping,YU Shu,ZOU Quan-ming.Elementary characterization on epitopes of anti-shiga toxinⅡB subunit monoclonal antibody[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(19):1831-1833.
CHEN Hong-zhang,ZENG Hao,MAO Xu-hu,LUO Ping,YU Shu,ZOU Quan-ming.Elementary characterization on epitopes of anti-shiga toxinⅡB subunit monoclonal antibody[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(19):1831-1833.DOI:
Objective To identify the epitope domain of monoclonal antibody 1H
9
1H
10
and 3E
5
against shiga toxinⅡB subunit(Stx2B). Methods The epitopes of Stx2B (1-72 aa) were predicted by the DNAstar Protean software. The recombinant plasmids of Stx2B50 (23-72 aa)
Stx2B54 (1-54 aa) were constructed and then transformed to E.coli BL21 (DE3) for expression under IPTG induction. The proteins were identified by SDS-PAGE and Western blotting. Results The monoclonal antibody 1H
9
and 1H
10
recognized antigen of Stx2B and Stx2B 50
while 3E
5
recognized Stx2B
Stx2B50
and Stx2B5
4. Conclusion The epitope of monoclonal antibody 1H