Amino Acids

Alphabetical:

Alanine   (8139 occurrences)
Arginine   (8464 occurrences)
Asparagine   (5628 occurrences)
Aspartic acid   (5807 occurrences)
Cystine   (5149 occurrences)
Glutamic acid   (6805 occurrences)
Glutamine   (7216 occurrences)
Glycine   (7888 occurrences)
Histidine   (7980 occurrences)
Isoleucine   (5272 occurrences)
Leucine   (8013 occurrences)
Lysine   (8072 occurrences)
Methionine   (7754 occurrences)
Phenylalanine   (7468 occurrences)
Proline   (7667 occurrences)
Serine   (8715 occurrences)
Theanine   (229 occurrences)
Threonine   (6795 occurrences)
Tryptophan   (7994 occurrences)
Tyrosine   (9195 occurrences)
Valine   (5405 occurrences)

By Popularity:

Tyrosine   (9195 occurrences)
Serine   (8715 occurrences)
Arginine   (8464 occurrences)
Alanine   (8139 occurrences)
Lysine   (8072 occurrences)
Leucine   (8013 occurrences)
Tryptophan   (7994 occurrences)
Histidine   (7980 occurrences)
Glycine   (7888 occurrences)
Methionine   (7754 occurrences)
Proline   (7667 occurrences)
Phenylalanine   (7468 occurrences)
Glutamine   (7216 occurrences)
Glutamic acid   (6805 occurrences)
Threonine   (6795 occurrences)
Aspartic acid   (5807 occurrences)
Asparagine   (5628 occurrences)
Valine   (5405 occurrences)
Isoleucine   (5272 occurrences)
Cystine   (5149 occurrences)
Theanine   (229 occurrences)