Definition: An enzyme that catalyzes the conversion of linear RNA to a circular form by the transfer of the 5'-phosphate to the 3'-hydroxyl terminus. It also catalyzes the covalent joining of two polyribonucleotides in phosphodiester linkage. EC 126.96.36.199.
do not confuse X ref POLYRIBONUCLEOTIDE SYNTHETASE with X refs POLYDEOXYRIBONUCLEOTIDE SYNTHETASES or POLYNUCLEOTIDE SYNTHETASES
Other names Polyribonucleotide Synthetase; Synthetase, Polyribonucleotide; Ligase, tRNA; tRNA Ligase