Screening and Purification of a Novel Trypsin Inhibitor from Prosopis juliflora Seeds with Activity Toward Pest Digestive Enzymes

Author(s): S. Sivakumar, O. L. Franco, P. D. Tagliari, C. Bloch Jr., M. Mohan, B. Thayumanavan.

Journal Name: Protein & Peptide Letters

Volume 12 , Issue 6 , 2005

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Several pests are capable of decreasing crop production causing severe economical and social losses. Aiming to find novel molecules that could impede the digestion process of different pests, a screening of a-amylase and trypsin-like proteinase inhibitors was carried out in Prosopis juliflora, showing the presence of both in dry seeds. Furthermore, a novel trypsin inhibitor, with molecular mass of 13,292 Da, was purified showing remarkable in vitro activity against T. castaneum and C. maculatus.

Keywords: prosopis juliflora, amylase inhibitor, trypsin inhibitor, plant defense

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Article Details

Year: 2005
Page: [561 - 565]
Pages: 5
DOI: 10.2174/0929866054395897
Price: $65

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