4.7 Proteins, Files, and Arrays

So far we've been writing programs with DNA sequence data. Now we'll also include the equally important protein sequence data. Here's an overview of what is covered in the following sections:

• How to use protein sequence data in a Perl program

• How to read protein sequence data in from a file

• Arrays in the Perl language

For the rest of the chapter, both protein and DNA sequence data are used.