Essential Biochemistry - Nucleic Acid Metabolism (Section 1 - No. 46)

In de novo pyrimidine synthesis, what is the role of dihydroorotase?

Catalyzing the formation of orotate from dihydroorotate.

Adding a phosphate group to UMP.

Adding an amino group to cytosine

Converts IMP to UMP.

Dihydroorotase forms orotate from dihydroorotate