KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.075 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]3-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus | |
0.085 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]5-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus | |
0.21 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]2-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
66000 | - |
x * 66000, SDS-PAGE | Aspergillus aculeatus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus aculeatus | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Aspergillus aculeatus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]2-(1->2)-alpha-L-Rha + H2O | - |
Aspergillus aculeatus | beta-D-GalA + [alpha-L-Rha-(1->4)-alpha-D-GalA-]2-(1->2)-alpha-L-Rha | - |
? | |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]3-(1->2)-alpha-L-Rha + H2O | - |
Aspergillus aculeatus | beta-D-GalA + [alpha-L-Rha-(1->4)-alpha-D-GalA-]3-(1->2)-alpha-L-Rha | - |
? | |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]4-(1->2)-alpha-L-Rha + H2O | - |
Aspergillus aculeatus | beta-D-GalA + [alpha-L-Rha-(1->4)-alpha-D-GalA-]4-(1->2)-alpha-L-Rha | - |
? | |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]5-(1->2)-alpha-L-Rha + H2O | - |
Aspergillus aculeatus | beta-D-GalA + [alpha-L-Rha-(1->4)-alpha-D-GalA-]5-(1->2)-alpha-L-Rha | - |
? | |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]6-(1->2)-alpha-L-Rha + H2O | - |
Aspergillus aculeatus | beta-D-GalA + [alpha-L-Rha-(1->4)-alpha-D-GalA-]6-(1->2)-alpha-L-Rha | - |
? | |
additional information | no activity with: CM-cellulose, crystalline cellulose, xylan from oat spelts, soluble starch, potato arabino-beta-(1,4)-galactan, larchwood arabino-beta-(1,3)/(1,6)-galactan (stractan), linear arabinan, polygalacturonic acid with or without 1 mM CaCl2 added, 4-nitrophenyl-alpha-L-Araf, 4-nitrophenyl-alpha-D-Galp, 4-nitrophenyl-beta-D-Galp, 4-nitrophenyl-alpha-D-Xylp, 4-nitrophenyl-beta-D-Xylp, 4-nitrophenyl-alpha-D-Manp, 4-nitrophenylb-D-Manp, 4-nitrophenyl-alpha-L-Fucp, 4-nitrophenyl-beta-D-Fucp, 4-nitrophenyl-alpha-D-Glcp, 4-nitrophenyl-beta-D-Glcp, 4-nitrophenyl-alpha-L-Rhap, 4-nitrophenyl-beta-D-GlcpA, and 4-nitrophenyl-beta-D-GalpA | Aspergillus aculeatus | ? | - |
? | |
rhamnogalacturonan I oligosaccharides with alpha-D-GalA at the non-reducing end + H2O | active toward all rhamnogalacturonan types of substrate, except for those with a 4,5-deoxy-4,5-unsaturated D-galactopyranosyluronic acid at the nonreducing end | Aspergillus aculeatus | beta-D-galacturonic acid + shortened rhamnogalacturonan I oligosaccharides with beta-D-galacturonic acid at the reducing end and at the nonreducing en | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 66000, SDS-PAGE | Aspergillus aculeatus |
Synonyms | Comment | Organism |
---|---|---|
RG-galacturonohydrolase | - |
Aspergillus aculeatus |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
50 | - |
NaOAc buffer, pH 5.0 | Aspergillus aculeatus |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
stable for at least 3 h | Aspergillus aculeatus |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
1.5 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]3-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus | |
1.8 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]5-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus | |
2.4 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]2-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
4 | - |
McIlvaine buffer | Aspergillus aculeatus |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
3.5 | 4.5 | pH 3.5: about 75% of maximal activity, pH 4.5: about 75% of maximal activity | Aspergillus aculeatus |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
2.5 | 7 | most stable for 1 h at 40°C | Aspergillus aculeatus |
3 | 6 | most stable for 24 h at 40°C | Aspergillus aculeatus |
Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|
Aspergillus aculeatus | in isoelectric focusing a major band at pI 5.12 and minor bands at 5.0, 5.07, and 5.2 are found. Preparative isoelectric focusing shows maximal activity of RG-galacturonohydrolase in the collected fractions with a pH of 4.9 and 5.0 | - |
5.1 |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
11 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]2-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus | |
20 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]3-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus | |
21 | - |
alpha-D-GalA-[(1->2)-alpha-L-Rha-(1->4)-alpha-D-GalA-]5-(1->2)-alpha-L-Rha | 40°C, pH 5.0 | Aspergillus aculeatus |