title: Effect of 6-mercaptopurine ribonucleotides on DNA-dependent RNA polymerase activity.
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000201:enzymology; D002645:Chickens; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology; D066298:In Vitro Techniques; D007700:Kinetics; D013873:Thionucleotides / Q000494:pharmacology*
chemical_list: D013873:Thionucleotides; C001707:6-thioinosine-5'-triphosphate; D012321:DNA-Directed RNA Polymerases