TRNA pseudouridine55 synthase

tRNA pseudouridine55 synthase (, TruB, aCbf5, Pus4, YNL292w (gene), Psi55 tRNA pseudouridine synthase, tRNA:Psi55-synthase, tRNA pseudouridine 55 synthase, tRNA:pseudouridine-55 synthase, Psi55 synthase, tRNA Psi55 synthase, tRNA:Psi55 synthase, tRNA-uridine55 uracil mutase, Pus10, tRNA-uridine54/55 uracil mutase) is an enzyme with systematic name tRNA-uridine55 uracil mutase. This enzyme catalyses the following chemical reaction


 * tRNA uridine55 $$\rightleftharpoons$$ tRNA pseudouridine55

Pseudouridine synthase TruB from Escherichia coli specifically modifies uridine55 in tRNA molecules.