the pentoses arabinose , 2-deoxyribose and xylose inhibited ribose uptake , whereas hexoses ( glucose , alpha-methylglucoside , thioglucose , galactose , lactose , maltose , mannose ) , adenosine , and proline did not inhibit uptake , indicating that the transporter exhibited substrate specificity .
C0030894
pentoses
C0035549
ribose