Transcription profile of the operon

Copyright information:Taken from "Ribosomal protein L20 controls expression of the operon via a transcription attenuation mechanism"Nucleic Acids Research 2007;35(5):1578-1588.Published online 8 Feb 2007PMCID:PMC1865079.© 2007 The Author(s). () Determination of the transcription initiation start point by extension of primer HP667; the +1 guanosine residue is underlined, the sequence ladder was generated with oligonucleotide HP667. () Northern analysis of operon transcripts with a probe spanning the four genes. () −35 and −10 promoter sequences upstream of the transcription start point which is underlined. () Schematic view of the operon transcripts.