![]() ![]() In the figure to the left, the amino acids are shown in a generalized form, so the R-groups are only given as R1 and R2. The figure to the right demonstrates a condensation reaction (dehydration synthesis, loss of water) showing the formation of a covalent peptide bond between two amino acids. The amino acids are joined together to form simple peptides and eventually long (50-2000 amino acids) polypeptide chains (proteins). Peptides are a linear complex of amino acids. In the second part of this exercise, you will examine a three protein examples that may contain secondary structures using FirstGlance, a simplified Jmol viewer. In the first part of this exercise, you will go through two brief tutorials (a) peptide bonds and (b) protein structure. This computer laboratory exercise is designed to strengthen your understanding of protein structure.
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