Nucleotide sequences of three proline tRNAs from Salmonella typhimurium.

The nucleotide sequences of three proline tRNAs from Salmonella typhimurium were determined by post-labeling procedures. The three proline tRNAs had almost identical sequences in the D-arm and T psi C-arm, and all contained 1-methylguanosine next to the 3'-end of the anticodon. The anticodon sequences of tRNAPro1, tRNAPro2 and tRNAPro3 were 5'-CGG-3', 5'-GGG-3', and 5'-VGG-3', respectively. The nucleotide sequence homologies of tRNAPro2 to tRNAPro1 and tRNAPro3 were 68% and 78%, respectively.