Pseudouridine synthase, a subgroup of the TruD family.
This group consists of several hypothetical archeal pseudouridine synthases assigned to the TruD family of psuedouridine synthases. Pseudouridine synthases catalyze the isomerization of specific uridines in an RNA molecule to pseudouridines (5-ribosyluracil, psi). The TruD family is comprised of proteins related to Escherichia coli TruD.