Glycine
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Glycine is the simplest amino acid. It's sidechain (sometimes called the R-group) is one hydrogen atom. Because it has a hydrogen atom as its sidechain, glycine is the only achiral amino acid. Because it lacks a bulky sidechain, glycine has a high degree of rotational freedom and is frequently found in turns along with proline.
RepresentationsRepresentations
The representation of glycine does not show the true size and shape of the molecule. The representation shows size and shape but hides structure behind the surface. This representation shows only bonds, and is better for seeing through layers of a large molecule. In this view, the is highlighted.