Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Fe3+ | 72-79% remaining activity for four isoenzymes | Penicillium wortmanni | |
Hg2+ | strong inhibition for all four isoenzymes | Penicillium wortmanni | |
N-bromosuccinimide | complete inhibition for all four isoenzymes | Penicillium wortmanni |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
1 | - |
xylobiose | beta-xylosidase-3 | Penicillium wortmanni | |
2.3 | - |
xylobiose | beta-xylosidase-2 | Penicillium wortmanni | |
3.3 | - |
xylobiose | beta-xylosidase-4 | Penicillium wortmanni | |
4.2 | - |
xylobiose | beta-xylosidase-1 | Penicillium wortmanni |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
extracellular | - |
Penicillium wortmanni | - |
- |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
100000 | - |
2 * 100000, xylosidase-4, SDS-PAGE | Penicillium wortmanni |
101000 | - |
2 * 101000, xylosidase-3, SDS-PAGE | Penicillium wortmanni |
105000 | - |
2 * 105000, xylosidase-2, SDS-PAGE | Penicillium wortmanni |
110000 | - |
xylosidase-1, SDS-PAGE, gel filtration | Penicillium wortmanni |
180000 | - |
xylosidase-4, SDS-PAGE, gel filtration | Penicillium wortmanni |
195000 | - |
xylosidase-2, SDS-PAGE, gel filtration | Penicillium wortmanni |
210000 | - |
xylosidase-3, SDS-PAGE, gel filtration | Penicillium wortmanni |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
xylan + H2O | Penicillium wortmanni | - |
beta-D-xylose + ? | - |
? | |
xylobiose + H2O | Penicillium wortmanni | transxylosylation activity | beta-D-xylose + D-xylose | - |
? | |
xylobiose + H2O | Penicillium wortmanni | four isoenzymes divided into three groups of action patterns | beta-D-xylose + D-xylose | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Penicillium wortmanni | - |
four different isoenzymes | - |
Purification (Comment) | Organism |
---|---|
separation of four isoenzymes to homogeneity | Penicillium wortmanni |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cell culture | - |
Penicillium wortmanni | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
22 | - |
beta-xylosidase-1 | Penicillium wortmanni |
30.5 | - |
beta-xylosidase-4 | Penicillium wortmanni |
40 | - |
beta-xylosidase-2 | Penicillium wortmanni |
61.2 | - |
beta-xylosidase-3 | Penicillium wortmanni |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
benzyl-beta-D-xyloside + H2O | low activity for xylosidases-2,-3,-4, 45% activity for xylosidase-1 | Penicillium wortmanni | phenol + beta-D-xylose | - |
? | |
butyl-beta-D-xyloside | low activity | Penicillium wortmanni | butanol + beta-D-xylose | - |
? | |
cyclohexyl-beta-D-xyloside + H2O | 50% activity compared to that for xylobiose | Penicillium wortmanni | cyclohexanol + beta-D-xylose | - |
? | |
methyl-beta-D-xyloside + H2O | very low activity | Penicillium wortmanni | beta-D-xylose + methanol | - |
? | |
methyl-beta-D-xyloside + H2O | very low activity | Penicillium wortmanni | ? | - |
? | |
p-nitrophenyl beta-D-xyloside + H2O | - |
Penicillium wortmanni | p-nitrophenol + beta-D-xylose | - |
? | |
xylan + H2O | - |
Penicillium wortmanni | beta-D-xylose + ? | - |
? | |
xylobiose + H2O | transxylosylation activity | Penicillium wortmanni | beta-D-xylose + D-xylose | - |
? | |
xylobiose + H2O | four isoenzymes divided into three groups of action patterns | Penicillium wortmanni | beta-D-xylose + D-xylose | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | 2 * 101000, xylosidase-3, SDS-PAGE | Penicillium wortmanni |
dimer | 2 * 105000, xylosidase-2, SDS-PAGE | Penicillium wortmanni |
dimer | 2 * 100000, xylosidase-4, SDS-PAGE | Penicillium wortmanni |
monomer | 1 * 110000, xylosidase-1, SDS-PAGE, gel filtration | Penicillium wortmanni |
Synonyms | Comment | Organism |
---|---|---|
beta-xylosidase-1 | - |
Penicillium wortmanni |
beta-xylosidase-2 | - |
Penicillium wortmanni |
beta-xylosidase-3 | - |
Penicillium wortmanni |
beta-xylosidase-4 | - |
Penicillium wortmanni |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | - |
beta-xylosidase-1 | Penicillium wortmanni |
60 | 65 | beta-xylosidase-3 | Penicillium wortmanni |
65 | - |
beta-xylosidases-2 and -4 | Penicillium wortmanni |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
45 | - |
stable up to for xylosidases-1,-3 and -4 | Penicillium wortmanni |
60 | - |
xylosidase-2, stable up to | Penicillium wortmanni |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
3 | 4 | beta-xylosidases-2,-3,-4 | Penicillium wortmanni |
4 | 4.5 | beta-xylosidase-1 | Penicillium wortmanni |