Guanosine + Phosphate → Guanine + Ribose 1-phosphate
Xanthosine (→), Hydrogen Ion (→) Transport: Sulfolobus solfataricus P2, Periplasmic Space to Sulfolobus solfataricus P2, Cytosol
xanthine-guanine phosphoribosyltransferase
Ribose 1-phosphate → D-Ribose 5-phosphate
Inosine + Phosphate → Hypoxanthine + Ribose 1-phosphate
Phosphate + Xanthosine → Ribose 1-phosphate + Xanthine
Phosphoribosyl pyrophosphate + Xanthine → Xanthylic acid + diphosphate
Adenosine + Hydrogen Ion + Water → Ammonium + Inosine
Adenosine + Phosphate → Adenine + Ribose 1-phosphate
Adenosine (→), Hydrogen Ion (→) Transport: Sulfolobus solfataricus P2, Periplasmic Space to Sulfolobus solfataricus P2, Cytosol