The name of the originating organism and the database entry are indicated. Cs, CsxA and related ORFs; CsS, Strep. avermitilis (NP 822398); CsAo, Amy. orientalis (the present work; csxA, AAX62629); CsH, H. jecorina (BAD99604); CsN: Neurospora crassa (XP_331434.1); CsM, Magnaporthe grisea (MG05864.4); CsG, Gibberella zeae (FG02314.1); CsAn, Asp. nidulans (AN2824.2); Ga, β-galactosidases from: GaK, Kluyveromyces lactis (P00723; BGAL_KLULA); GaL, Lactococcus lactis (Q48727; BGAL_LACLA); GaEcl, Enterobacter cloacae (Q47077, BGAL_ENTCL); GaEco, E. coli (P00722, BGAL_ECOLI); GaA, Arthrobacter sp. (Q59140, GAL_ARTSB); GaC, Clostridium acetobutylicum (P24131, BGAL_CLOAB); Gl, β-glucuronidases from: GlC, Canis familiaris (dog) (O18835, BGLR_CANFA); GlF, Felis silvestris catus (cat) (O97524, BGLR_FELCA); GlM, Mus musculus (mouse) (P12265, BGLR_MOUSE); GlH, Homo sapiens (human) (P08236, BGLR_HUMAN); GlE, E. coli (P05804, BGLR_ECOLI); GlS: Staphylococcus sp. (patent PCT/US98/19217); GlL, Lactobacillus gasseri (AAK07836, Q9AHJ8_9LACO); Ma, β-mannosidases from: MaA, A. niger (Q9UUZ3, MANBA_ASPNG); MaB, Bos taurus (ox) (Q29444, MANBA_BOVIN); MaH, Homo sapiens (O00462, MANBA_HUMAN); MaM, Mus musculus (Q8K2I4_MOUSE); MaT, Thermobifida fusca (Q8KLI9_THEFU); MaC, Cellulomonas fimi (AAD42775, Q9XCV4_CELFI).