title: Proteins lacking certain amino acids.
mesh_terms: D001120:Arginine / Q000032:analysis; D001224:Aspartic Acid / Q000032:analysis; D003545:Cysteine / Q000032:analysis; D005971:Glutamates / Q000032:analysis; D006639:Histidine / Q000032:analysis; D007930:Leucine / Q000032:analysis; D008239:Lysine / Q000032:analysis; D008715:Methionine / Q000032:analysis; D010455:Peptides; D010649:Phenylalanine / Q000032:analysis; D011506:Proteins; D014364:Tryptophan / Q000032:analysis; D014443:Tyrosine / Q000032:analysis; D014633:Valine / Q000032:analysis
chemical_list: D005971:Glutamates; D010455:Peptides; D011506:Proteins; D001224:Aspartic Acid; D014443:Tyrosine; D010649:Phenylalanine; D006639:Histidine; D014364:Tryptophan; D001120:Arginine; D008715:Methionine; D007930:Leucine; D014633:Valine; D008239:Lysine; D003545:Cysteine