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4-Hydroxyphenylacetic Acid as a Monophenolase Inhibitor and a Diphenolase Activator on Mushroom Tyrosinase

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8 Author(s)
Jian-Gang Xie ; Coll. of Chem., Chem. Eng. & Biotechnol., Donghua Univ., Shanghai, China ; Shu-Bai Li ; Yong Xue ; Hai-Tao Zhang
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4-Hydroxyphenylacetic acid (4-HPA) can inhibit monophenolase (IC50=0.79 mM) and activate diphenolase of mushroom tyrosinase with its increasing concentrations. The activation kinetics, analyzed by Lineweaver-Burk plots, indicated 4-HPA to be a competitive and uncompetitive mixed-type activator of diphenolase when L-DOPA was used as substrate. 4-HPA can not only inhibit the oxy form but also activate the met form of mushroom tyrosinase.

Published in:
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Date of Conference: 11-13 June 2009

Page(s):
1 - 3
E-ISBN :
978-1-4244-2902-8
Print ISBN:
978-1-4244-2901-1
INSPEC Accession Number:
10777092
Conference Location :
Beijing
Digital Object Identifier :
10.1109/ICBBE.2009.5162144
Product Type:
Conference Publications

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