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Class B acid
phosphatase
Alkaline
phosphatase
Adenosine
deaminase
Purine
nucleoside
phosphorylase
deoD-type
Xanthine
dehydrogenase
molybdenum-
binding subunit
Xanthine
dehydrogenase
FAD-binding
subunit
Xanthine
dehydrogenase
iron-sulfur-
binding subunit
Xanthine
dehydrogenase
molybdenum-
binding subunit
Xanthine
dehydrogenase
FAD-binding
subunit
Xanthine
dehydrogenase
iron-sulfur-
binding subunit
Adenosine
monophosphate
H
2
O
P
i
Adenosine
H
2
O
H
+
Ammonium
Inosine
P
i
Ribose
1-phosphate
Hypoxanthine
H
2
O
NAD
H
+
NADH
Xanthine
H
2
O
NAD
NADH
H
+
Uric acid
Protein ushA
aphA
phoA
add
deoD
xdhA
xdhB
xdhC
xdhA
xdhB
xdhC
Adenosine
monophosphate
Water
Phosphate
Adenosine
Water
Hydrogen Ion
Ammonium
Inosine
Phosphate
Ribose
1-phosphate
Hypoxanthine
Water
NAD
Hydrogen Ion
NADH
Xanthine
Water
NAD
NADH
Hydrogen Ion
Uric acid
ushA
aphA
phoA
add
deoD
xdhA
xdhB
xdhC
xdhA
xdhB
xdhC
AMP
H
2
O
P
i
Adenosi
H
2
O
H
+
Ammon
Inosine
P
i
Rib-1P
Hyp
H
2
O
NAD
H
+
NADH
Xanthin
H
2
O
NAD
NADH
H
+
Urate
ushA