title: New polypeptide chains associated with highly purified RNA polymerase II or B from Physarum polycephalum.
mesh_terms: D012321:DNA-Directed RNA Polymerases / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel; D046911:Macromolecular Substances; D008970:Molecular Weight; D010455:Peptides / Q000302:isolation & purification; D010804:Physarum / Q000201:enzymology*; D012319:RNA Polymerase II / Q000302:isolation & purification*
chemical_list: D046911:Macromolecular Substances; D010455:Peptides; D012319:RNA Polymerase II; D012321:DNA-Directed RNA Polymerases