KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | subsite affinities, kinetics | Aspergillus niger |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
- |
- |
Aspergillus niger 4M-147 | - |
- |
- |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
[6-O-methyl-alpha-D-GalpA]n = [6-O-methyl-alpha-D-GalpA]m + 4-deoxy-6-O-methyl-alpha-D-galact-4-enuronosy-[6-O-methyl-alpha-D-GalpA]n-m-1 | reaction mechanism | Aspergillus niger |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
8.9 | - |
purified enzyme, acetate buffer 50 mM | Aspergillus niger |
32 | - |
purified enzyme, McIlvaine buffer with 0.1 M citrate and 0.2 M phosphate | Aspergillus niger |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
(6-O-CH3-GalpA)4 | - |
Aspergillus niger | ? | - |
? | |
(6-O-CH3-GalpA)4 | - |
Aspergillus niger 4M-147 | ? | - |
? | |
(6-O-CH3-GalpA)5 | - |
Aspergillus niger | ? | - |
? | |
(6-O-CH3-GalpA)5 | - |
Aspergillus niger 4M-147 | ? | - |
? | |
(6-O-CH3-GalpA)6 | - |
Aspergillus niger | ? | - |
? | |
(6-O-CH3-GalpA)6 | - |
Aspergillus niger 4M-147 | ? | - |
? | |
(6-O-CH3-GalpA)7 | - |
Aspergillus niger | ? | - |
? | |
(6-O-CH3-GalpA)7 | - |
Aspergillus niger 4M-147 | ? | - |
? | |
(6-O-CH3-GalpA)8 | - |
Aspergillus niger | ? | - |
? | |
(6-O-CH3-GalpA)9 | best substrate | Aspergillus niger | ? | - |
? | |
DELTA4,5-(6-O-CH3-GalpA)4 | - |
Aspergillus niger | ? | - |
? | |
DELTA4,5-(6-O-CH3-GalpA)5 | - |
Aspergillus niger | ? | - |
? | |
DELTA4,5-(6-O-CH3-GalpA)6 | - |
Aspergillus niger | ? | - |
? | |
additional information | substrate specificity, activity increases with increasing length of the substrate up to polymerization degree of 8 monomers, enzyme is very specific for fully methyl-esterified oligogalacturonides, removal of the methyl-ester or changing the type of ester, e.g. ethyl esterification, or transamidation result in almost complete loss of activity, enzyme is capable of cleaving the bond between a methyl-esterified and a non-esterified galacturonic acid residue, where the newly formed DELTA4,5 unsaturated non-reducing end residue always contains a methyl-ester, product determination by mass spectrometry | Aspergillus niger | ? | - |
? | |
additional information | substrate specificity, activity increases with increasing length of the substrate up to polymerization degree of 8 monomers, enzyme is very specific for fully methyl-esterified oligogalacturonides, removal of the methyl-ester or changing the type of ester, e.g. ethyl esterification, or transamidation result in almost complete loss of activity, enzyme is capable of cleaving the bond between a methyl-esterified and a non-esterified galacturonic acid residue, where the newly formed DELTA4,5 unsaturated non-reducing end residue always contains a methyl-ester, product determination by mass spectrometry | Aspergillus niger 4M-147 | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
More | enzyme contains 8 subsites, mapping | Aspergillus niger |
Synonyms | Comment | Organism |
---|---|---|
pectin lyase A | - |
Aspergillus niger |
Pla | - |
Aspergillus niger |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | - |
assay at | Aspergillus niger |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6 | - |
assay at | Aspergillus niger |