A Homodimeric Sporamin-Type TrypsinInhibitor with Antiproliferative, HIV ReverseTranscriptase-Inhibitory and AntifungalActivities from Wampee (Clausena lansium)Seeds

Verfasser / Beitragende:
[T.B. Ng, S.K. Lam, W.P. Fong]
Ort, Verlag, Jahr:
2003
Enthalten in:
Biological Chemistry, 384/2(2003-02-20), 289-293
Format:
Artikel (online)
ID: 378874276
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245 0 2 |a A Homodimeric Sporamin-Type TrypsinInhibitor with Antiproliferative, HIV ReverseTranscriptase-Inhibitory and AntifungalActivities from Wampee (Clausena lansium)Seeds  |h [Elektronische Daten]  |c [T.B. Ng, S.K. Lam, W.P. Fong] 
520 3 |a A homodimeric trypsin inhibitor with a molecular mass of 54 kDa was isolated from the seeds of Clausena lansium (Lour) Skeels with a very simple procedure comprising extraction with an aqueous buffer and ion exchange chromatography on CM-cellulose. It inhibited trypsin with an IC50 of 2.2 nM but was without any inhibitory effect on chymotrypsin and proteinase K. The uptake of MTT by human leukemia HL60 and hepatoma Hep G2 cells was inhibited with an IC50 of 100 uM. Translation in the cellfree rabbit reticulocyte lysate system was inhibited with an IC50 of 3.6 uM. The activity of HIV-1 reverse transcriptase was reduced in the presence of the trypsin inhibitor. The trypsin inhibitor exerted antifungal activity toward Physalospora piricola but not Mycosphaerella arachidicola, Botrytis cinerea, Fusarium oxysporum or Coprinus comatus. 
540 |a Copyright © 2003 by Walter de Gruyter GmbH & Co. KG 
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700 1 |a Lam  |D S.K.  |4 aut 
700 1 |a Fong  |D W.P.  |4 aut 
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