Aim: To express the recombinant fusion protein of hemangiopoietin (HAPO) and prepare the rabbit-anti-human HAPO polyclonal antibody.
Methods: The sequence encoding HAPO was amplified by PCR and cloned into plasmid pET32c to construct recombinant prokaryotic expression system. The recombinant expression vectors were identified by enzyme digestion analysis and transformed into E. coli. The HAPO protein was purified by affinity chromatography. Rabbits were immunized with the HAPO protein, and the immune sera of rabbits were collected. Antibodies (IgG) obtained from the immune sera were purified.
Results: The purified HAPO protein was successfully obtained. The purified polyclonal antibody of rabbit-anti-human HAPO was also obtained from the immune sera of rabbits, and could response to human HAPO.
Conclusion: A prokaryotic expression system of human HAPO has been prepared and the polyclonal antibody against HAPO has been prepared, which can be used to determine HAPO protein.