[3-O-methl-D-glucose transport system in the cells of Acholeplasma laidlawii]

In cells of Acholeplasma laidlawii a constitutive system of transport of glucose derivate 3-O-methyl-D-glucose was found. This derivate penetrated into cells, without modification and accumulated in free state. The transport system was of enzymatic nature and exhibited sharp substrate specificity. The transport of 3-O-methyl-D-glucose was an active process and occurred against the concentrated gradient.