Criteria for distinguishing biogenic and abiogenic amino acids--preliminary considerations.
D000596:Amino Acids / Q000032:analysis / Q000096:biosynthesis / Q000138:chemical synthesis; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D000460:Chlorophyta / Q000032:analysis; D004926:Escherichia coli / Q000032:analysis; D008974:Mollusca / Q000032:analysis; D010163:Paleontology
D000596:Amino Acids