论文部分内容阅读
从绿豆中提取的胰蛋白酶抑制剂,分子量为7984,具有两个活性中心,7对二硫键,属于Bowman-Birk抑制剂类型。用透析法和静置法生长出四方双锥和斜方柱两种晶体。用X1线旋进照相法测定它们的晶胞参数。四方双锥晶体属四方晶系,空间群P4_122(或P4_322),a=b=49.21(?),c=158.07(?)。每个晶体学不对称单位包含三个分子。斜方柱晶体属正交晶系,空间群P2_12_12,a=39.65(?),b=57.18(?),c=52.02(?)。每个晶体学不对称单位包含两个分子。
Trypsin inhibitor extracted from mung bean has a molecular weight of 7984 and two active centers with seven pairs of disulfide bonds, belonging to the Bowman-Birk inhibitor class. With the dialysis method and static method to grow quadrangular bipyramid and rhombic column two crystals. The unit cell parameters were determined by precession photography with the X1 line. The tetragonal biconcave crystals belong to the tetragonal system, space group P4_122 (or P4_322), a = b = 49.21 (?), C = 158.07 (?). Each crystallographic asymmetric unit contains three molecules. The orthorhombic crystal belongs to orthorhombic crystal system. The space group P2_12_12, a = 39.65 (?), B = 57.18 (?), C = 52.02 (?). Each crystallographic asymmetric unit contains two molecules.