title: Control of messenger synthesis.
mesh_terms: D004926:Escherichia coli / Q000166:cytology / Q000378:metabolism*; D005809:Genes, Regulator; D005815:Genetic Code; D005827:Genetics, Microbial; D012329:RNA, Bacterial / Q000096:biosynthesis; D012333:RNA, Messenger / Q000096:biosynthesis*; D012343:RNA, Transfer / Q000096:biosynthesis; D012270:Ribosomes / Q000378:metabolism
chemical_list: D012329:RNA, Bacterial; D012333:RNA, Messenger; D012343:RNA, Transfer