Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Xanthine phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

GMP synthase [glutamine-hydrolyzing] (Glutamine amidotransferase); Catalyzes the synthesis of GMP from XMP.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPDH) (IMPD); Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Adenylosuccinate synthetase; Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

5'-nucleotidase SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

Xanthine phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

GMP synthase [glutamine-hydrolyzing] (Glutamine amidotransferase); Catalyzes the synthesis of GMP from XMP.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPDH) (IMPD); Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

Adenylosuccinate synthetase; Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

Bifunctional purine biosynthesis protein PurH; Function of homologous gene experimentally demonstrated in an other organism; enzyme.

Hypoxanthine phosphoribosyltransferase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the purine/pyrimidine phosphoribosyltransferase family.

5'-nucleotidase SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

Putative GMP synthase-Glutamine amidotransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

Glycine hydroxymethyltransferase; Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

GMP synthase [glutamine-hydrolyzing] (Glutamine amidotransferase); Catalyzes the synthesis of GMP from XMP.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPDH) (IMPD); Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

Adenylosuccinate synthetase; Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family.

Bifunctional: 5,10-methylene-tetrahydrofolate dehydrogenase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate.

Adenylosuccinate lyase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the lyase 1 family. Adenylosuccinate lyase subfamily.