Inosine-5'-monophosphate dehydrogenase; 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.

Glutamine amidotransferase; Derived by automated computational analysis using gene prediction method: Protein Homology.

Acetylpolyamine aminohydrolase; Derived by automated computational analysis using gene prediction method: Protein Homology.

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.

Adenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.

Non-canonical purine NTP pyrophosphatase; Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function as a house-cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. Belongs to the HAM1 NTPase family.

ATP synthase F0F1 subunit epsilon; Produces ATP from ADP in the presence of a proton gradient across the membrane; the epsilon subunit is part of the catalytic core of the ATP synthase complex; Derived by automated computational analysis using gene prediction method: Protein Homology.

Peptidase S9; Derived by automated computational analysis using gene prediction method: Protein Homology.

Glutamate racemase; Provides the (R)-glutamate required for cell wall biosynthesis.