Probable Golgi transport protein 1; May be involved in fusion of ER-derived transport vesicles with the Golgi complex; Belongs to the GOT1 family.

Glutamine-dependent carbamoyl-phosphate synthase; This protein is a 'fusion' protein encoding four enzymatic activities of the pyrimidine pathway (GATase, CPSase, ATCase and DHOase) (By similarity). Involved in the elongation of the pharyngeal isthmus during development, probably by providing precursors of UDP- sugars required for heparan sulfate proteoglycan biosynthesis. Regulates the organization of the actin and intermediate filaments cytoskeleton in the pharyngeal muscles ; In the central section; belongs to the metallo-dependent hydrolases superfamily. DHOase family. CAD subfamily.

Orotate phosphoribosyltransferase; Phosphoribosyltransferase which catalyzes the formation of UMP from uracil in vitro and thus may be involved in UMP biosynthesis via the salvage pathway. May also participate in the first step of UMP synthesis by catalyzing the formation of orotidine 5'-phosphate, a UMP precursor, from orotate.

Orotidine 5'-phosphate decarboxylase; Bifunctional enzyme which catalyzes the formation of UMP from orotate in the de novo pathway of pyrimidine biosynthesis. May also form UMP from uracil. Regulates the size of gut granules during embryonic development. Involved in resistance to DNA damaging agents including UV-C and X-ray radiation. In the C-terminal section; belongs to the OMP decarboxylase family.

Dihydropyrimidinase 1.

Dihydropyrimidinase 2; Belongs to the metallo-dependent hydrolases superfamily. Hydantoinase/dihydropyrimidinase family.

Protein unc-33; During neurogenesis, plays an essential role in axonal guidance and outgrowth by regulating the polarization of both microtubule and actin cytoskeletons. Establishes the asymmetry of axonal and dendrite microtubules and the polarized sorting of neuronal proteins. This is achieved in part by regulating the localization of kinesin-like protein unc-104. In neurons without a distal microtubule- organizing center (MTOC), also controls the organization of microtubules in dendrites. During the dorso-ventral axonal guidance and outgrowth of VD neurons, required downstream of Ra [...]

Dihydropyrimidine dehydrogenase [NADP(+)]; Involved in pyrimidine base degradation. Catalyzes the reduction of uracil and thymine (By similarity). Involved in the degradation of the chemotherapeutic drug 5-fluorouracil.

Dihydroorotate dehydrogenase (quinone), mitochondrial; Belongs to the dihydroorotate dehydrogenase family. Type 2 subfamily.