InterPro domain: IPR007342

Members of this entry catalyze the hydrolysis of pseudouridine 5'-phosphate (PsiMP) to ribose 5-phosphate and uracil [ 1 ].

It is also reported to be involved in the synthesis of indigoidine, which is a blue pigment synthesised by Erwinia chrysanthemi implicated in pathogenicity and protection from oxidative stress. IdgA is involved in indigoidine biosynthesis, but its specific function is unknown [ 2 ].

1. Pseudouridine monophosphate glycosidase: a new glycosidase mechanism. Biochemistry 51, 9245-55
2. Characterization of indigoidine biosynthetic genes in Erwinia chrysanthemi and role of this blue pigment in pathogenicity. J. Bacteriol. 184, 654-65