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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. 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. 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. AS-related polypeptide can be obtained by phage display, which facilitates the research into the immune mechanism of AS.


Zhi Xiao, Xuwen Zhao, Ming Zhao, Gaohong Yang. Screening of atherosclerosis related polypeptide from phage display peptide library]. Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology. 2013 May;29(5):485-7

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PMID: 23643267

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