Peptide sequence: VGFISGSRVS MKPEFLHLTP GVQLEAGGDN LGQQYNSPQE VIGKRGSDII
Sequence homology: Cow: 93%; Dog: 100%; Guinea Pig: 93%; Horse: 93%; Human: 100%; Mouse: 100%; Pig: 100%; Rabbit: 100%; Rat: 93%; Yeast: 75%
This gene encodes a uridine 5'-monophosphate synthase. The encoded protein is a bifunctional enzyme that catalyzes the final two steps of the de novo pyrimidine biosynthetic pathway. The first reaction is carried out by the N-terminal enzyme orotate phosphoribosyltransferase which converts orotic acid to orotidine-5'-monophosphate. The terminal reaction is carried out by the C-terminal enzyme OMP decarboxylase which converts orotidine-5'-monophosphate to uridine monophosphate. Defects in this gene are the cause of hereditary orotic aciduria. Alternate splicing results in multiple transcript variants.
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Protein Aliases: ODC; OMPdecase; OPRT; OPRTase; Orotate phosphoribosyltransferase; Orotidine 5'-phosphate decarboxylase; UMP synthase; Uridine 5'-monophosphate synthase
Gene Aliases: OK/SW-cl.21; OPRT; UMPS
UniProt ID: (Human) Q9UG49
Entrez Gene ID: (Human) 7372