Datasheet

origin of most of the so-called protein sequences that you can find in data-
bases. Many sequence analysis programs acknowledge this fact by offering
on-the-fly translation, so you can process DNA sequences as virtual protein
sequences with a simple mouse click.
More with coding DNA sequences
Using the example in the first paragraphs of the section “DNA Coding
Regions: Pretending to Work with Protein Sequences,” you can see that the
resulting protein sequence depends entirely on the way you converted your
DNA sequence into triplets before using the genetic code. For instance, using
the second position as starting point leads to
1- ATGGAAGTATTTAAAGCGCCACCTATTGGGATATAAG
2- A
TGG AAG TAT TTA AAG CGC CAC CTA TTG GGA TAT AAG
3- W K Y L K R H L L G Y K
Beginning with the third position (GGA-AGT- . . .) again leads to an entirely
different translation.
Figure 1-9:
The
universal
genetic
code.
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Chapter 1: Finding Out What Bioinformatics Can Do for You
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