The tyrosine molecule in 3-D

The tyrosine molecule - rotatable in 3 dimensions

3 letter code:     tyr        1 letter code:    Y
Tyrosine is an aromatic amino acid. It is effectively hydroxy-phenylalanine.

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. Between these is the α- (alpha) carbon to which the 'R' group (and a single -H atom) is attached.

In tyrosine, the 'R' group is rather bulky: a methyl group attached to a benzene ring carrying an -OH group.

Other information

Tyrosine is involved in the production of the pigment melanin, which colours skin and hair.

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