 |
In this view
the two polypeptide chains are given different colours (blue for A, red
for B).
The coiling, and the straighter connecting sections which can be clearly seen here, are a result of the secondary level of protein structure. Note the superimposed amino acid residue codes and numbers in the sequence, as well as the letters corresponding to the chains. This is effectively the primary protein structure, from which the other levels are built up. |