title: Subunits of E. coli RNA polymerase forming 3'-OH binding site at initial stages of transcription process: possible role of delta-subunit.
mesh_terms: D000345:Affinity Labels; D001665:Binding Sites; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology*; D008956:Models, Chemical; D010777:Photochemistry; D011487:Protein Conformation; D014158:Transcription, Genetic
chemical_list: D000345:Affinity Labels; D012321:DNA-Directed RNA Polymerases