title: Rare codons cluster.
mesh_terms: D000465:Algorithms; D000595:Amino Acid Sequence; D016000:Cluster Analysis; D003062:Codon; D004926:Escherichia coli / Q000235:genetics; D007700:Kinetics; D014176:Protein Biosynthesis; D012641:Selection, Genetic
chemical_list: D003062:Codon