title: The synthesis of the alternating copolymer poly(r(A-s4U)) by RNA polymerase of Escherichia coli.
mesh_terms: D000255:Adenosine Triphosphate; D004926:Escherichia coli / Q000201:enzymology*; D007700:Kinetics; D011108:Polymers / Q000096:biosynthesis*; D012316:RNA Nucleotidyltransferases / Q000378:metabolism*; D012329:RNA, Bacterial; D013057:Spectrum Analysis
chemical_list: D011108:Polymers; D012329:RNA, Bacterial; D000255:Adenosine Triphosphate; D012316:RNA Nucleotidyltransferases