PTS_Fructose-Mannitol_Family
PTS Fructose-Mannitol Family
Family of transport proteins
The PTS Fructose-Mannitol (Fru) Family (TC# 4.A.2) is a large and complex family that is part of the PTS-GFL superfamily. It includes several sequenced fructose, mannose and mannitol-specific porters, as well as several putative PTS porters of unknown specificities. The fructose porters of this family phosphorylate fructose on the 1-position. Those of TC family 4.A.6 phosphorylate fructose on the 6-position.