期刊
INTERNATIONAL JOURNAL FOR PARASITOLOGY
卷 38, 期 2, 页码 137-141出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijpara.2007.09.009
关键词
Entamoeba histolytica; serine acetyltransferase; GOLD; FlexX; NCI; amoebiasis
类别
The protozoan parasite Entamoeba histolytica is the etiologic agent of amebiasis, a major global public health problem, particularly in developing countries. There is an effective anti-amoebic drug available, however its long term use produces undesirable side effects. As K histolytica is a micro-aerophilic organism, it is sensitive to high levels of oxygen and the enzymes that are involved in protecting against oxygen-stress are crucial for its survival. Therefore serine acetyltransferase, an enzyme involved in cysteine biosynthesis, was used as a target for identifying potential inhibitors. Virtual screening with Escherichia call serine acetyltransferase was carried out against the National Cancer Institute chemical database utilizing molecular docking tools such as GOLD and FlexX. The initial analysis yielded 11 molecules of which three compounds were procured and tested for biological activity. The results showed that these compounds partially block activity of the E call enzyme and the growth of E histolytica trophozoites but not mammalian cells. (c) 2007 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.
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