The presence of N-(purin-6-ylcarbamoyl)threonine in transfer ribonucleic acid species whose codons begin with adenine.
D000225:Adenine; D000604:Amino Acyl-tRNA Synthetases; D001120:Arginine; D001216:Asparagine; D001565:Benzoates; D002219:Carbamates / Q000032:analysis*; D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002621:Chemistry; D002848:Chromatography, DEAE-Cellulose; D004590:Electrophoresis, Paper; D004926:Escherichia coli / Q000032:analysis* / Q000201:enzymology; D005815:Genetic Code; D006016:Glycolates; D007532:Isoleucine; D007930:Leucine; D008239:Lysine; D008715:Methionine; D011685:Purine Nucleotides / Q000032:analysis; D012329:RNA, Bacterial / Q000032:analysis*; D012343:RNA, Transfer / Q000032:analysis*; D012694:Serine; D013388:Succinimides; D013912:Threonine / Q000032:analysis*; D014316:Tritium
D001565:Benzoates; D002219:Carbamates; D002247:Carbon Isotopes; D006016:Glycolates; D011685:Purine Nucleotides; D012329:RNA, Bacterial; D013388:Succinimides; D007532:Isoleucine; D014316:Tritium; D013912:Threonine; D012694:Serine; D001216:Asparagine; D012343:RNA, Transfer; D001120:Arginine; D008715:Methionine; D000604:Amino Acyl-tRNA Synthetases; D007930:Leucine; D000225:Adenine; D008239:Lysine