title: Heterogeneity of E. coli RNA polymerase.
mesh_terms: D000244:Adenosine Diphosphate / Q000494:pharmacology; D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004269:DNA, Bacterial / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000037:antagonists & inhibitors / Q000302:isolation & purification / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology*; D006150:Guanine Nucleotides / Q000494:pharmacology; D008968:Molecular Conformation; D008970:Molecular Weight; D010445:Peptide Elongation Factors; D011485:Protein Binding; D012329:RNA, Bacterial / Q000096:biosynthesis; D012333:RNA, Messenger / Q000096:biosynthesis; D012335:RNA, Ribosomal / Q000096:biosynthesis; D013329:Structure-Activity Relationship; D013698:Templates, Genetic; D014158:Transcription, Genetic; D014500:Uracil Nucleotides / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D004269:DNA, Bacterial; D006150:Guanine Nucleotides; D010445:Peptide Elongation Factors; D012329:RNA, Bacterial; D012333:RNA, Messenger; D012335:RNA, Ribosomal; D014500:Uracil Nucleotides; D000244:Adenosine Diphosphate; D012321:DNA-Directed RNA Polymerases