chemistry genetics metabolism 220 article 159 Animals 110 animal 110 nonhuman 109 human 96 Humans 92 controlled study 92 molecular genetics 92 Molecular Sequence Data 90 priority journal 87 Article 74 nucleotide sequence 69 unclassified drug 65 amino acid sequence 64 phylogeny 64 Phylogeny 60 Amino Acid Sequence 58 DNA sequence 57 classification 56 physiology 54 Sequence Analysis, DNA 53 enzymology 52 growth, development and aging 50 gene expression regulation 47 mutation 47 isolation and purification 46 Argentina 44