Activating Compound | Comment | Organism | Structure |
---|---|---|---|
6-deoxy-D-glucose | the enzyme is produced exclusively in the presence of the specific inducer 6-deoxy-D-glucose, also named quinovose | Talaromyces flavus | |
additional information | D-galactose, melibiose, raffinose, stachyose, methyl alpha-D-galactopyranoside, 6-deoxy-D-galactose, D-glucose, 2-deoxy D-glucose, 6-O-tosyl-D-glucose, 6-chloro-6-deoxy-dglucose, D-arabinose, and D-xylose do not stimulate enzyme production | Talaromyces flavus |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
alpha-D-galactopyranosyl azide | 75% inhibition at 2 mM | Talaromyces flavus | |
D-galactose | 51% inhibition at 2 mM | Talaromyces flavus | |
D-xylose | 49% inhibition at 2 mM | Talaromyces flavus | |
lactose | 12% inhibition at 2 mM | Talaromyces flavus | |
melibiose | 46% inhibition at 2 mM | Talaromyces flavus | |
methyl alpha-D-galactopyranoside | 15% inhibition at 2 mM | Talaromyces flavus | |
methyl beta-D-galactopyranoside | 13% inhibition at 2 mM | Talaromyces flavus | |
additional information | not inhibited by 2-acetamido-2-deoxy-D-galactopyranose, D-galactosamine hydrochloride, D-glucose, 2-deoxy-D-glucose, 6-deoxy-D-glucose, 2-acetamido-2-deoxy-D-glucopyranose, D-glucosamine hydrochloride, saccharose, stachyose, D-fructose and D-arabinose | Talaromyces flavus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.54 | - |
p-nitrophenyl alpha-D-galactopyranoside | at 30°C | Talaromyces flavus |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
63000 | - |
SDS-PAGE | Talaromyces flavus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Talaromyces flavus | - |
- |
- |
Talaromyces flavus CCF2686 | - |
- |
- |
Purification (Comment) | Organism |
---|---|
DEAE column chromatography and Fractogel SO3- gel filtration | Talaromyces flavus |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
5.75 | - |
unpurified enzyme from culture broth | Talaromyces flavus |
619 | - |
after 108fold purification | Talaromyces flavus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
guar gum + H2O | - |
Talaromyces flavus | ? | - |
? | |
guar gum + H2O | - |
Talaromyces flavus CCF2686 | ? | - |
? | |
locust bean gum + H2O | - |
Talaromyces flavus | ? | - |
? | |
locust bean gum + H2O | - |
Talaromyces flavus CCF2686 | ? | - |
? | |
melibiose + H2O | negligible hydrolytic activity towards melibiose | Talaromyces flavus | D-galactose + D-glucose | - |
? | |
melibiose + H2O | negligible hydrolytic activity towards melibiose | Talaromyces flavus CCF2686 | D-galactose + D-glucose | - |
? | |
p-nitrophenyl alpha-D-galactopyranoside + H2O | - |
Talaromyces flavus | p-nitrophenol + alpha-D-galactose | - |
? | |
p-nitrophenyl alpha-D-galactopyranoside + H2O | - |
Talaromyces flavus CCF2686 | p-nitrophenol + alpha-D-galactose | - |
? |
Synonyms | Comment | Organism |
---|---|---|
alpha-D-galactopyranoside galactohydrolase | - |
Talaromyces flavus |
alpha-D-galactosidase | - |
Talaromyces flavus |
alphaGal1 | - |
Talaromyces flavus |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
50 | - |
- |
Talaromyces flavus |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | 60 | the enzyme remains fully stable for 22 h at temperatures up to 40°C and is inactivated after 5 h at temperatures above 60°C | Talaromyces flavus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
3.5 | 4.5 | - |
Talaromyces flavus |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.25 | - |
alpha-D-galactopyranosyl azide | at 30°C | Talaromyces flavus | |
0.38 | - |
D-galactose | at 30°C | Talaromyces flavus |