title: The shape of proteins S15 and S18 from the small subunit of the Escherichia coli ribosome.
mesh_terms: D001426:Bacterial Proteins; D004058:Diffusion; D004926:Escherichia coli / Q000648:ultrastructure; D008970:Molecular Weight; D011487:Protein Conformation; D012269:Ribosomal Proteins; D012270:Ribosomes / Q000648:ultrastructure; D014461:Ultracentrifugation; D014783:Viscosity
chemical_list: D001426:Bacterial Proteins; D012269:Ribosomal Proteins