Crystallization and preliminary crystallographic studies of α-amylase inhibitor from wheat (Triticum aestivum)

Crystals of the human salivary alpha-amylase inhibitor from wheat have been obtained. A native data set was collected to 2.1 A resolution with 90% completeness at laboratory sources. The crystals belong to the trigonal system, space group P3(1) (or enantiomer) with a = b = 79.31, c = 60.56 A. Crystal density analysis and self-rotation function studies suggest the presence of four subunits in the asymmetric unit.