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  • Title: [Expression and purification of T7 bacteriophage capsid protein P11 and preparation of monoclonal antibody against P11].
    Author: Chen L, Gao YY, Wang HM, Xu R, Liu SX, Li ZH.
    Journal: Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi; 2008 May; 24(5):482-3. PubMed ID: 18466708.
    Abstract:
    AIM: To express capsid tail protein P11 of T7 bacteriophage and produce mouse monoclonal antibody(mAb) against the protein. METHODS: P11 protein was cloned and recombinant P11 protein was expressed as a fusion protein with an N-terminal 6-His tag. The purified protein was used to immunize BALB/c mouse. The specificity of mAb was analyzed by ELISA and Western blot. RESULTS: P11 protein was successfully expressed and purified. SDS-PAGE analysis showed that the molecular weight of the expressed protein was approximately 27 kd. One hybridoma cell (2G11) secreting mAb against P11 was developed. The isotype of the mAb was IgG(2b). ELISA detection showed that titers of mAb was 1:8. 1 x 10(5) in ascites.Western blot analysis proved mAb obtained could react specifically to the recombinant p11 protein. CONCLUSION: Recombinant P11 protein and mAbs were successfully prepared.
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