Alanyl-tRNA sequence. The base sequence of yeast alanyl-tRNA and the deduced cloverleaf secondary structure are shown. Modified nucleosides are abbreviated as follows: methylinosine (ml), dihydrouridine (UH₂), ribothymidine (T), pseudouridine (ψ), methylguanosine (mG), and (dimethylguanosine (m₂G). Inosine (l), another modified nucleoside, is part of the anticodon.