PTS-GFL Superfamily
Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.
Nguyen T.X., Yen M.R., Barabote R.D., Saier M.H. Jr. 2006. Topological predictions for integral membrane permeases of the phosphoenolpyruvate:sugar phosphotransferase system. J Mol Microbiol Biotechnol. 11(6):345-60.
Chen, J.S., V. Reddy, J.H. Chen, M.A. Shlykov, W.H. Zheng, J. Cho, M.R. Yen, and M.H. Saier, Jr. (2011). Phylogenetic characterization of transport protein superfamilies: superiority of SuperfamilyTree programs over those based on multiple alignments. J. Mol. Microbiol. Biotechnol. 21: 83-96.
4.A.1 - The PTS Glucose-Glucoside (Glc) Family4.A.2 - The PTS Fructose-Mannitol (Fru) Family
4.A.3 - The PTS Lactose-N,N'-Diacetylchitobiose-β-glucoside (Lac) Family
4.A.4 - The PTS Glucitol (Gut) Family