Fig. 2.

Electron microscopic view of purified molinate hydrolase negatively stained with uranyl acetate. (a) An overview, which shows triangular protein masses (circled) to be the dominant molecules. Morphologies indicated by arrows represent biparticulate protein masses of the triangular molecules seen as edge-on views. (b) Detailed view of individual triangular protein masses either focused close to the Gaussian focus (upper row) or at 2.0 μm underfocused (lower row) for maximum contrast and shape discrimination.