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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/2221


    Title: Complex formation between a formyl peptide and 24p3 protein with a blocked N-terminus of pyroglutamate
    Authors: SIN-TAK CHU;HAN-JIA LIN;YEE-HSIUNG CHEN
    Contributors: 輔英科技大學 保健營養系
    Keywords: fluorescence;formyl peptide;24p3 protein;pyroglutamate;pyroglutamate amino peptidase
    Date: 1997-02-01
    Issue Date: 2010-09-26 14:12:17 (UTC+8)
    Abstract: We have purified 24p3 protein from mouse uterine fluid (Biochem. J.316, 545–550, 1996). It is a 25.8-kDa glycoprotein with a N-blocked terminus. This work demonstrated the N-blocked residue to be pyroglutamate, supporting the post-translational cleavage site at Ala-Gln in the precursor protein to generate a putative protein of 180 amino acid residues. Consequently, the two cysteines, Cys78 and Cys177, and the two tryptophans, Trp31 and Trp81, are assigned along the polypeptide chain. No free thiol group was detected in the protein. The presence of formyl-Met-Leu-Phe in the protein solution causes a considerable decrease in the protein fluorescence due to Trp31 and Trp81. Analysis of the fluorescence data supports the idea that the protein can be complexed with the formyl peptide. The association constant for the complex formation is (4.8 ± 0.29) × 105 M-1 at pH 7.4.
    Relation: The Journal of Peptide Research49(6),582-585
    Appears in Collections:[保健營養系] 期刊論文

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