FIG. 4.
Nucleotide sequence of the rbr promoter region from C. perfringens (9). The overlined nucleotide sequence indicates the complementary sequence of the primer used for primer extension analysis. A potential ribosome binding site is marked by asterisks. Possible consensus promoter sequences are bold underlined, and the transcription start point is marked by an arrow. A predicted stem-loop structure that might have resulted in a preferred processing site at position −58 is double underlined (+, possible bulges).