FIG. 6.

Phylogenetic tree for representative proteins of the GPH family. The phylogenetic tree was derived using the TREE program. Phylogenetic distance is approximately proportional to branch length. Abbreviations: Lla, Lactococcus lactis; Lbr, Lactobacillus brevis, Lpe, Lactobacillus pentosus; Lbu, Lactobacillus bulgaricus; Llu, Leuconostoc lactis; Ppe, Pediococcus pentosaceus; Sth, Streptococcus thermophilus; Sxy, Staphylococcus xylosus; Eco, Escherichia coli; Kpn, Klebsiella pneumoniae; Sty, Salmonella typhimurium; GalP, galactose permease; LacP or LacS, lactose permease; XylP, xyloside permease; RafP, raffinose permease; MelB, melibiose permease.