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  • Title: [Preparation of anti-mouse PGRP-L single-epitope polyclonal antibody].
    Author: He Z, Zhang LY, Chen ZL.
    Journal: Nan Fang Yi Ke Da Xue Xue Bao; 2007 Jun; 27(6):859-62. PubMed ID: 17584655.
    Abstract:
    OBJECTIVE: To prepare a single-epitope polyclonal antibody against mouse long peptidoglycan recognition protein (mPGRP-L). METHODS: B cell dominant epitopes of mPGRP-L predicted by bioinformatics were synthesized, and the immunogen was prepared by conjugation of the synthetic peptide and the carrier protein key-hole limpet hemocyanin (KLH) by MBS method. The single-epitope polyclonal antibody was obtained by immunizing rabbits with the KLH-peptide conjugate, purified by SPG affinity columns or antigenic peptide affinity columns, and identified by ELISA and Western blotting. RESULTS AND CONCLUSION: A dominant epitope in N-terminal region of mPGRP-L, with amino acid sequence of NH(2)-(C)DPHSLSPELQALISEVAQHD-COOH, was chosen and synthesized. The titer of anti-serum of the rabbits immunized with the KLH-peptide conjugate was 1:256,000. The polyclonal antibody purified with SPG affinity columns and antigenic peptide affinity columns were named as mPGRP-Ln1 and mPGRP-Ln2, respectively. Western blotting demonstrated that the antibody mPGRP-Ln1 could recognize the recombined N-terminal fragment of mPGRP-Ln with a clear band at relative molecular mass of about 29,000, suggesting the successful preparation of the single-epitope polyclonal antibody against the N-terminal region of mPGRP-L.
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