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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 4
BKCSDE 23(4)
April 20, 2002

Title	Development of an ELISA for the Organophosphorus Insecticide Isofenphos
Author	Han Jin Park, Won Chul Park, Taeowan Jung, Choon Sup Rha,Yong Tae Lee
Keywords	Isofenphos, Insecticide, Enzyme-linked immunosorbent assay, ELISA.
Abstract	(R,S)- and (R)-2-Benzylcysteine (1) and (R,S)-2-phenethylcysteine (2) were synthesized and evaluated as inhibitors for carboxypeptidase A (CPA) with the expectation that these compounds exhibit improved inhibitory activities over 2-benzyl-3-mercaptopropanoic acid (BMPA), a potent CPA competitive inhibitor, possibly having additional interactions of their amino group with the carboxylate of Glu-270 of the enzyme upon binding to CPA. Contrary to the expectation, however, the CPA inhibitory potencies of these compounds were found to be much reduced compared with that of BMPA, suggesting that the amino group in the inhibitors rather exerts steric hindrance in binding of these inhibitors to CPA.
Page	599 - 604
Full Text	PDF

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