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  • Title: [Screening of atherosclerosis related polypeptide from phage display peptide library].
    Author: Xiao Z, Zhao X, Zhao M, Yang G.
    Journal: Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi; 2013 May; 29(5):485-7. PubMed ID: 23643267.
    Abstract:
    OBJECTIVE: To screen atherosclerosis (AS) related polypeptide from phage display 12-peptide library, and verify the binding activity of selected positive phages and synthetic protein fragment. METHODS: We collected plasma from AS patients as target for biopanning against phage-displayed 12-peptide library. After 3 rounds of screening, 10 positive phages were picked up and the binding activity was proved by ELISA. Single-stranded DNA of the phages were purified and sequenced, and a similar polypeptide was synthesized to test the binding activity to AS patients plasma. RESULTS: Selected phages significantly bound to AS patients' plasma. Five of ten phages had GPRPPSAPNMPL sequence. Corresponding synthetic polypeptide also showed a high binding activity to AS patient plasma. CONCLUSION: AS-related polypeptide can be obtained by phage display, which facilitates the research into the immune mechanism of AS.
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