Baker T S, Eisenberg D, Eiserling F
Science. 1977 Apr 15;196(4287):293-5. doi: 10.1126/science.196.4287.293.
Electron micrographs and x-ray diffraction patterns of crystals of ribulose bisphosphate carboxylase, probably the most abundant protein on earth, have provided new details of the arrangement of subunits. The eight large subunits and eight small subunits are clustered in two layers, perpendicular to a fourfold axis of symmetry. Viewed down the fourfold axis, the molecule is square-shaped.
核酮糖二磷酸羧化酶晶体的电子显微镜照片和X射线衍射图谱,这种酶可能是地球上含量最丰富的蛋白质,为亚基排列提供了新的细节。八个大亚基和八个小亚基聚集成两层,垂直于四重对称轴。从四重对称轴向下看,分子呈方形。