Adenosine + Hydrogen Ion + Water → Ammonium + Inosine
Inosine + Phosphate → Hypoxanthine + Ribose 1-phosphate
Purine nucleoside phosphorylase DeoD-type
Ribose 1-phosphate → D-Ribose 5-phosphate
Phosphoribosyl pyrophosphate + Xanthine → Xanthylic acid + diphosphate
Phosphate + Xanthosine → Ribose 1-phosphate + Xanthine
Adenosine + Phosphate → Adenine + Ribose 1-phosphate
Xanthine-guanine phosphoribosyltransferase
Bifunctional purine biosynthesis protein PurH
Adenosine (→), Hydrogen Ion (→) Transport: Escherichia coli (strain K12 / MC4100 / BW2952), Periplasmic Space to Escherichia coli (strain K12 / MC4100 / BW2952), Cytosol
Xanthosine (→), Hydrogen Ion (→) Transport: Escherichia coli (strain K12 / MC4100 / BW2952), Periplasmic Space to Escherichia coli (strain K12 / MC4100 / BW2952), Cytosol
Guanosine + Phosphate → Guanine + Ribose 1-phosphate
Escherichia coli (strain K12 / MC4100 / BW2952)
xanthine-guanine phosphoribosyltransferase