title: Photo-modification studies of the contacts of the 5'-terminus of growing RNA with the subunits of RNA-polymerase.
mesh_terms: D000255:Adenosine Triphosphate / Q000031:analogs & derivatives / Q000378:metabolism; D001386:Azides; D003570:Cytidine Triphosphate / Q000378:metabolism; D004279:DNA, Viral / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism / Q000528:radiation effects*; D004926:Escherichia coli / Q000201:enzymology*; D006160:Guanosine Triphosphate / Q000031:analogs & derivatives / Q000378:metabolism; D009841:Oligonucleotides / Q000378:metabolism*; D009843:Oligoribonucleotides / Q000378:metabolism*; D009876:Operon; D013604:T-Phages; D014466:Ultraviolet Rays; D014544:Uridine Triphosphate / Q000378:metabolism
chemical_list: D001386:Azides; D004279:DNA, Viral; D009841:Oligonucleotides; D009843:Oligoribonucleotides; C024294:ATP gamma-p-azidoanilide; C031907:GTP gamma-4-azidoanilide; D003570:Cytidine Triphosphate; D006160:Guanosine Triphosphate; D000255:Adenosine Triphosphate; D012321:DNA-Directed RNA Polymerases; D014544:Uridine Triphosphate