1viw
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Revision as of 19:54, 26 May 2008
TENEBRIO MOLITOR ALPHA-AMYLASE-INHIBITOR COMPLEX
Overview
The alpha-amylase from Tenebrio molitor larvae (TMA) has been crystallized in complex with the alpha-amylase inhibitor (alpha-AI) from the bean Phaseolus vulgaris. A molecular-replacement solution of the structure was obtained using the refined pig pancreatic alpha-amylase (PPA) and alpha-AI atomic coordinates as starting models. The structural analysis showed that although TMA has the typical structure common to alpha-amylases, large deviations from the mammalian alpha-amylase models occur in the loops. Despite these differences in the interacting loops, the bean inhibitor is still able to inhibit both the insect and mammalian alpha-amylase.
About this Structure
1VIW is a Protein complex structure of sequences from Phaseolus vulgaris and Tenebrio molitor. Full crystallographic information is available from OCA.
Reference
A plant-seed inhibitor of two classes of alpha-amylases: X-ray analysis of Tenebrio molitor larvae alpha-amylase in complex with the bean Phaseolus vulgaris inhibitor., Nahoum V, Farisei F, Le-Berre-Anton V, Egloff MP, Rouge P, Poerio E, Payan F, Acta Crystallogr D Biol Crystallogr. 1999 Jan;55(Pt 1):360-2. Epub 1999, Jan 1. PMID:10089450 Page seeded by OCA on Mon May 26 22:54:27 2008
