title: Bacteriophage sigma factor for RNA polymerase.
mesh_terms: D002247:Carbon Isotopes; D002501:Centrifugation, Zonal; D003090:Coliphages; D000242:Cyclic AMP / Q000378:metabolism; D004261:DNA Replication; D004926:Escherichia coli / Q000201:enzymology; D005815:Genetic Code; D012316:RNA Nucleotidyltransferases / Q000032:analysis*; D013698:Templates, Genetic
chemical_list: D002247:Carbon Isotopes; D000242:Cyclic AMP; D012316:RNA Nucleotidyltransferases