The methylation of adenylyl-(3'-5')-uridine and uridylyl-(3'-5')-adenosine with diazomethane.
D000227:Adenine Nucleotides; D003978:Diazomethane; D008745:Methylation; D014500:Uracil Nucleotides
D000227:Adenine Nucleotides; D014500:Uracil Nucleotides; D003978:Diazomethane