Tags: Enzyme.
In enzymology a RNA-3′-phosphate cyclase (EC 6.5.1.4) is an enzyme that catalyzes the chemical reactionATP + RNA 3′-terminal-phosphate AMP + diphosphate + RNA terminal-2’3′-cyclic-phosphateThus the two substrates of this enzyme are ATP and RNA 3′-terminal-phosphate whereas its 3 products are AMP diphosphate and RNA terminal-2’3′-cyclic-phosphate.This enzyme belongs to the family of ligases specifically those forming phosphoric-ester bonds.