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Literature summary extracted from
- Isolation and characteristics of trypsin from pyloric ceca of the starfish Asterina pectinifera (2002), Comp. Biochem. Physiol. B, 132, 485-490.
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.4.21.4 | additional information | no activation by Ca2+ | Patiria pectinifera |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 28000 | - |
x * 28000, SDS-PAGE | Patiria pectinifera |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.4.21.4 | Patiria pectinifera | - |
- |
- |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 3.4.21.4 | - |
Patiria pectinifera |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 3.4.21.4 | pyloric cecum | - |
Patiria pectinifera | - |
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 25 | - |
- |
Patiria pectinifera |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.4.21.4 | Nalpha-p-tosyl-L-Arg methyl ester + H2O | - |
Patiria pectinifera | ? | - |
? |  |
Subunits
| EC Number | Subunits | Comment | Organism |
|---|---|---|---|
| 3.4.21.4 | ? | x * 28000, SDS-PAGE | Patiria pectinifera |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 55 | - |
- |
Patiria pectinifera |
Temperature Range [°C]
| EC Number | Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 40 | 60 | 40°C: 40% of maximal activity, 60°C: about 90% of maximal activity | Patiria pectinifera |
Temperature Stability [°C]
| EC Number | Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 40 | - |
pH 8.0, 15 min, stable below | Patiria pectinifera |
| 3.4.21.4 | 50 | - |
pH 8.0, 15 min, about 30% loss of activity | Patiria pectinifera |
| 3.4.21.4 | 60 | - |
pH 8.0, 15 min, about 90% loss of activity | Patiria pectinifera |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 8 | - |
- |
Patiria pectinifera |
pH Range
| EC Number | pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.4.21.4 | 6 | 9 | pH 6.0: about 35% of maximal activity, pH 9.0: about 70% of maximal activity | Patiria pectinifera |
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Release 2023.1 (January 2023)
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