ABSTRACT
All proteins rely on a linear arrangement of 20 amino acids to create the complicated structures that serve a cell or organism with such properties as locomotion, exchange of raw materials, and procreation. Although there are as many as 10.24 trillion combinations of these 20 amino acids for every 10 residues, based on the proteins sequenced to date many of the same sequences are observed. This observation suggests that very few protein sequences translate into proteins that can perform some function. In the hope of
better understanding how certain protein sequences are selected over others we must explore the way in which proteins originate and improve the cell’s or organism’s reproductive strength, its evolutionary history.
