Cloned (Comment) | Organism |
---|---|
wild-type and mutant pro-enzymes expressed in Escherichia coli | Aspergillus niger |
Protein Variants | Comment | Organism |
---|---|---|
D123A | site-directed mutagenesis, activity is almost at background levels | Aspergillus niger |
D123E | site-directed mutagenesis, activity not detectable, below 0.2% | Aspergillus niger |
D123E/E219D | site-directed mutagenesis, weak activity against acid-denatured hemoglobin | Aspergillus niger |
D123N | site-directed mutagenesis | Aspergillus niger |
D125N | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
D137N | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
D148N | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
D160N | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
D170N | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
D208N | site-directed mutagenesis | Aspergillus niger |
D220N | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
D225N | site-directed mutagenesis | Aspergillus niger |
D254N | site-directed mutagenesis | Aspergillus niger |
E128Q | site-directed mutagenesis | Aspergillus niger |
E141Q | site-directed mutagenesis | Aspergillus niger |
E152Q | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
E177Q | site-directed mutagenesis | Aspergillus niger |
E189Q | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
E206Q | site-directed mutagenesis | Aspergillus niger |
E211Q | site-directed mutagenesis | Aspergillus niger |
E2154A | site-directed mutagenesis | Aspergillus niger |
E219A | site-directed mutagenesis, activity is almost at background levels | Aspergillus niger |
E219D | site-directed mutagenesis, activity not detectable, below 0.2% | Aspergillus niger |
E219Q | site-directed mutagenesis | Aspergillus niger |
E222Q | site-directed mutagenesis, markedly active toward acid-denatured hemoglobin | Aspergillus niger |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
var.macrosporus | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
Hemoglobin + H2O | - |
Aspergillus niger | ? | - |
? | |
Milk casein + H2O | - |
Aspergillus niger | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
acid proteinase A | - |
Aspergillus niger |
non-pepsin type acid proteinase | - |
Aspergillus niger |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | 60 | - |
Aspergillus niger |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | 65 | large decrease in activity at 60-65°C | Aspergillus niger |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
2.6 | - |
milk casein as substrate | Aspergillus niger |
5.3 | - |
hemoglobin as substrate | Aspergillus niger |