[Preparation and characterization of rabbit antibody against human mast cell carboxypeptidase].

AIM

To prepare antibody against human mast cell carboxypeptidase (hMC-CP) by using recombinant hMC-CP expressed in E.coli, and to characterize the antibody.

METHODS

hMC-CP was expressed in E.coli with L-Arabinose induction and purified through Ni-NTA column. The purified hMC-CP as immunogen was used to immunize rabbit. The titer and the specificity of the rabbit anti-hMC-CP antibody was analyzed by indirect ELISA and Western blot respectively.

RESULTS

The hMC-CP was successfully expressed and purified. The polyconal anit-hMC-CP antibody was prepared by immunizing rabbit using the purified recombinant protein, The titer of the generated antiserum was 1:6 400 by ELISA. Western blot analysis showed that this antibody could bind with hMC-CP specifically.

CONCLUSION

The rabbit anti-hMC-CP antibody with high titer and high specificity has been prepared by using purified recombinant hMC-CP as immunogen, which lays the foundation for further research on detection and function of hMC-CP.