A trinucleotide sequence located in a tRNA molecule is an anticodon. It is located at the anticodon site of tRNA. It is positioned complementary to the triplet codon located in the mRNA molecule. If the codon of the mRNA molecule is 5-AGU-3, the anticodon of the tRNA molecule will be 3-UCA-5. Since the ideal genetic code consists of 61 sense codons, 61 types of tRNA are required for pairing a codon along a tRNA.
Some anticodons
UGA→ACU, CUC→GAG, AUG→UAC, GUC→CAG, UCA→AGU, ACU→UGA, GCA→CGU, UAU→AUA, CAC→GUG, GAC→CUG