* Here we include a chain of 20 amino acids [broken into two images], which we represent with circles with lines connecting them; this chain represents the polypeptide’s primary structure.
- The N-terminus and C-terminus are the beginning and end terminals of the polypeptide chain.
Considerations:
1. We will only represent some of the many ways that amino acid residues can be modified in a protein, here, many more exist.
2. No single protein will have the number of modifications that we will show here; we show them this way here within a single polypeptide chain for simplicity.
