Where is Tyrocidine Encoded in the Bacillus Brevis Genome?

Thousands of different DNA 30-mers could code for Tyrocidine B1, and we would like to know which one appears in the Bacillus brevis genome. There are three different ways to divide a DNA string into codons for translation, one starting at each of the first three starting positions of the string. These different ways of dividing a DNA string into codons are called reading frames. Since DNA is double-stranded, a genome has six reading frames (three on each strand), as shown in the figure below.