queuine + D-ribose 5-phosphate => queuosine 5'-phosphate + H2O
queuine + d-ribose 5-phosphate => queuosine 5'-phosphate + h2o
queuine + D-ribose 5-phosphate => queuosine 5'-phosphate + H2O
queuine + d-ribose 5-phosphate => queuosine 5'-phosphate + h2o