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Crystallization And X-Ray Crystallographic Studies Of An Inhibitor From Rye (Secale Cereale) Active Against Acanthoscelides Obtectus And Zabrotes Subfasciatus Alpha-Amylases

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Crystals of a new inhibitor present in rye seeds active against alpha-amylases from crop pests Acanthoscelides obtectus and Zabrotes subfasciatus have been obtained. A native dataset was collected at 2.21 Å resolution with 99.3 % completeness at CPr beamline at LNLS. The crystals belong to the trigonal system, space group P3121 with a = b = 78.21 Å, and c = 59.61 Å. The crystal calculated solvent content is compatible with one dimer per asymmetric unit.
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Keywords: cereal inhibitors; crop improvement; insect amylase inhibitor; plant resistance against pests; rye inhibitor

Document Type: Review Article

Affiliations: Biotechnology Center, Universidade Estadual de Ponta Grossa, Brazil, Department of Chemistry, Universidade Estadual de Ponta Grossa, Brazil, Department of Biology, Universidade Estadual de Ponta Grossa, Brazil, and dInstituto de Fisica de Sao Carlos, USP, Brazil.

Publication date: 01 February 2004

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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