Statistical aspects of protein structure prediction

The basics

Amino acids are small molecules of the form

amino_acid_1

where R is a side chain called the R-group. There are 20 different amino acids found in proteins, each characterized by its R-group.

Peptides and proteins are chains of amino acids. Proteins are long such chains, whereas peptides and polypeptides are shorter ones. The amino acids are linked together by peptide bonds:

angles

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