Journal of Jilin University Medicine Edition ›› 2018, Vol. 44 ›› Issue (03): 661-666.doi: 10.13481/j.1671-587x.20180339

Previous Articles     Next Articles

Preparation and application of rabbit anti-osteoclastic protein tyrosine phosphatase polyclonal antibody

LIU Shaowei1,2, JIANG Huan1, WANG Xiaolong3, LI Menghong1, CHEN Yu1, TANG Zhongyuan1, HU Min1   

  1. 1. Department of Orthodontics, Stomatology Hospital, Jilin University, Changchun 130021, China;
    2. Jilin Provincial Key Laboratory of Tooth Development and Jaw Bone Remodeling, Changchun 130021, China;
    3. Department of Geriatric, Stomatology Hospital, Jilin University, Changchun 130021, China
  • Received:2017-09-08 Online:2018-05-28 Published:2018-05-31

Abstract: Objective: To purify the recombinant protein by using the constructed pET28a-ΔPTP-oc recombinant expression plasmid,and to prepare the rabbit polyclonal antibody against osteoclastic protein tyrosine phosphatase(PTP-oc) and to identify its properties. Methods: The constructed pET28a-ΔPTP-oc recombinant plasmid was transformed into E.coli BL21(DE3),and the isopropyl-β-D-thiogalactoside (IPTG) was used to induce the expression of recombinant protein.The recombinant protein was purified by the method of Q fast flow agarose and Ni-NTA agarose,and the purified recombinant protein was used as an antigen to immunize the rabbit to obtain PTP-oc polyclonal antibody.The titer and specificity of the antibody were identified by indirect ELISA and Western blotting methods. Results: The recombinant PTP-oc protein was successfully purified.The indirect ELISA results showed that after immunizing the rabbit with the recombinant PTP-oc protein,the polyclonal antibody with the titer of 1:3 2000 was gotten.The Western blotting results showed that the polyclonal antibody had high specificity. Conclusion: The PTP-oc recombinant protein is successfully purified,and the polyclonal antibody of PTP-oc is prepared successfully.

Key words: titer, osteoclastic protein-tyrosine phosphatase, polyclonal antibody, osteoclast, identification

CLC Number: 

  • Q814