The phylogenetic tree of the GH-67 α-glucuronidases. The abbreviations for the α-glucuronidases are as follows (GenBank accession numbers of the proteins are in parentheses): GstT1 (or AguA), G. stearothermophilus T-1 (AAL32057); Gst236, G. stearothermophilus 236 (AAG09715); Bhal, Bacillus halodurans C-125 (BAB04780); Apun, Aeromonas punctata (BAA74508); Tmar, Thermotoga maritima (AAD35149); Save, Streptomyces avermitilis MA-4680 (BAC69160); Cjap (GlcA67A), Cellvibrio japonicus (AAL57752); Cmix, Cellvibrio mixtus (AAL57753); Xaxo, Xanthomonas axonopodis (AAM39062); Xcam, Xanthomonas campestris (AAM43323); Ccre, Caulobacter crescentus CB15 (AAK24775); Bthe, Bacteroides thetaiotaomicron VPI-5482 (AAO77729); Anig, Aspergillus niger CBS 120.49 (CAC38119); Atub, Aspergillus tubingensis NW756 (CAA75605); Apul, Aureobasidium pullulans (AAR87862); Teme, Talaromyces emersonii (AAL33576); Anid, Aspergillus nidulans FGSC A4 (EAA66353); Ncra, Neurospora crassa OR74A (EAA29095); Hjec, Hypocrea jecorina RutC-30 (CAA92949); Mgri, Magnaporthe grisea 70-15 (EAA53369). The tree was constructed by the GrowTree program of the GCG Wisconsin package (Accelrys Inc.) and visualized with the program TreeView (25).