Table 1.
Comparative properties of β-d-galactofuranosidases.
| Enzyme | Species | Substrate | pH | T (°C) | M (kDa) | KM (mM) † | Year | Reference |
|---|---|---|---|---|---|---|---|---|
| extracellular exo-β-d-Galf-ase | Penicillium charlesii (fungus) | pPGM a | 4 | 47 | – | – | 1977 | [46] |
| β-Galf-ase | Helminthosporium sacchari (fungus) | 1-O-methyl-β-Galf | 4.2 & 5.2 | 38 | – | – | 1983 | [47] |
| β-d-Galf-ase | H. sacchari (fungus) | HS toxin b | 4.6 | 37 | – | – | 1983 | [48] |
| extracellular β-d-Galf-ase | Penicillium spp. | pNP-β-d-Galf | 5 | 30 | – | – | 1989 | [50] |
| Aspergillus spp. (fungi) | ||||||||
| endo-β-Galf-ase | Penicillium oxalicum (fungus) | β-(1→5)-galactofuran | 5 | 37 | 77 | – | 1992 | [56] |
| exo-β-d-Galf-ase | Trichoderma harzianum (fungus) | EPS c | 4–4.5 | 35–40 | 35 | – | 1992 | [49] |
| endo-β-Galf-ase | Bacillus sp. (bacteria) | __ | 6 | 37 | 67 | – | 1995 | [57] |
| exo-β-d-Galf-ase | Penicillium fellutanum (fungus) | pNP-β-d-Galf | 3–6 | 37 | 70 | 0.3 | 1999 | [52] |
| extracellular β-Galf-ase | Aspergillus niger (fungus) | pNP-β-d-Galf | 3–4 | 37 | 90 | 4 | 2001 | [54] |
| exo-β-d-Galf-ase | P. fellutanum (fungus) | 1-O-methyl-β-Galf | 4–4.5 | 40 | 70 | 2.6 | 2001 | [53] |
| exo-β-d-Galf-ase | Trypanosoma cruzi (protozoa) | LPPG d | – | – | 55 | – | 2003 | [55] |
† KM values determined only for pNP-β-d-Galf and its derivatives as a substrate. a pPGM—peptidophosphogalactomannan from Penicillium fellutanum b HS toxin—host-selective toxin from Helminthosporium sacchari c EPS—extracellular polysaccharides from Penicillium digitatum d LPPG—lipopeptidophosphoglycan from Trypanosoma cruzi.