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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 11
BKCSDE 32(11)
November 20, 2011

Title	Solution Structure of pA2, the Mimotopic Peptide of Apolipoprotein A-I, by NMR Spectroscopy
Author	Hoshik Won
Keywords	Apolipoprotein A-I, NMR spectroscopy, Molecular dynamic computation
Abstract	A number of mimetic peptides of apolipoprotein A-I, a major component for high density lipoproteins (HDL), were screened from the phase-displayed random peptide library by utilizing monoclonal antibodies (A12). A mimetic peptide for A12 epitope against apolipoprotein A-I was selected as FVLVRDTFPSSVCCP(pA2) exhibiting 45% homology with Apo A-I in the BLAST search. Solution structure determination of this mimotope was made by using 2D-NMR data and NMR-based distance geometry (DG)/molecular dynamic calculations. The resulting DG structures had low penalty value of 0.4-0.6 Å2 and the total RMSD of 0.7-1.7 Å. The mimotope pA2 exhibited a characteristic β-turn conformation from Val[2] to Phe[8] near Pro[9] residue.
Page	4016 - 4020
Full Text	PDF

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