In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled with different amino acid sequences, but they also are held together by ...

DESPITE the considerable advances that have been made in our knowledge of protein structure ... reflect chemical and physical reactions of secondary importance. These reactions may be avoided ...

The sequence of amino acids in the chain determines how the chain will fold up to make the protein, so different proteins have different three-dimensional shapes. The three-dimensional shape of a ...