Glycine is the simplest amino acid. It can also be described as aminoethanoic acid or aminoacetic acid.
Like all amino acids, it has an amino group (-NH2
) - blue with 2 white balls - at one end, and a carboxylic acid group (-COOH) - grey, connected to red, and red and white - at the other end.
Its 'R' group is simply a hydrogen, one of the white balls attached to the central carbon atom. This is often described as the α- (alpha) carbon.
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