The crystallization of ribosomal proteins from the 50 S subunit of the Escherichia coli and Bacillus stearothermophilus ribosome.

Several individual intact ribosomal proteins purified from bacterial sources under mild conditions have been crystallized. A number of these are suitable candidates for three-dimensional structural studies by x-ray diffraction techniques. Data collection to 3 A resolution for one of these proteins is in progress.