title: Small-angle x-ray study of aggregates of DNA-dependent RNA polymerase from Escherichia coli.
mesh_terms: D012321:DNA-Directed RNA Polymerases; D004926:Escherichia coli / Q000201:enzymology*; D046911:Macromolecular Substances; D008956:Models, Chemical; D008970:Molecular Weight; D012542:Scattering, Radiation; D014965:X-Rays
chemical_list: D046911:Macromolecular Substances; D012321:DNA-Directed RNA Polymerases