2. In my home area you'll find a file named 'e_coli_k12_dh10b.faa'. It contains all of the polypeptide sequences in the E. coli K12 genome in FASTA format. Your task for this exercise is to generate an amino acid usage report with counts only, and in no particular order. Your output should look like this:

T: 69645

G: 95475

V: 91683

Y: 36836

H: 29255 .....

3. Modify your script from #2 to display only the top 5 most frequently used amino acids and add their percentage use. The output should be like this: L: 139002 (10.7%) A: 123885 (9.6%) G: 95475 (7.4%) V: 91683 (7.1%) I: 77836 (6.0%)