The models on offer here were generated by imaging viruses in the electron microscope. The resulting micrographs were computationally processed to extract the three-dimensional structure at intermediate resolution.
This is a 3D reconstruction of the bacteriophage T7, solved by cryo-electron microscopy and 3D image processing. This model (which is not from my ...
Viruses are the smallest pathogens to infect man. For reasons of genetic economy they assemble from a small number of building blocks, using symmetry. The resulting structures are both beautiful and intriguing.