Fig. 3. A large MSD (strong SD with more base pairs with aSD) is associated with weak secondary structure around the SD sequence and start codon measured by MFE in E. coli phages at two locations: (a) 40 bases upstream of the initiation codon (MFE40nt) and (b) from four bases upstream to 37 bases downstream of the initiation codon (MFE−4+37).
