Phosphate + Xanthosine → Ribose 1-phosphate + Xanthine
Adenosine (→), Hydrogen Ion (→) Transport: Escherichia coli O55:H7 str. CB9615, Periplasmic Space to Escherichia coli O55:H7 str. CB9615, Cytosol
Xanthosine (→), Hydrogen Ion (→) Transport: Escherichia coli O55:H7 str. CB9615, Periplasmic Space to Escherichia coli O55:H7 str. CB9615, Cytosol
xanthine-guanine phosphoribosyltransferase
Guanosine + Phosphate → Guanine + Ribose 1-phosphate
Phosphoribosyl pyrophosphate + Xanthine → Xanthylic acid + diphosphate
Ribose 1-phosphate → D-Ribose 5-phosphate
Inosine + Phosphate → Hypoxanthine + Ribose 1-phosphate
Adenosine + Hydrogen Ion + Water → Ammonium + Inosine
Adenosine + Phosphate → Adenine + Ribose 1-phosphate