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Literature summary for 3.4.21.4 extracted from

  • Kishimura, H.; Hayashi, K.
    Isolation and characteristics of trypsin from pyloric ceca of the starfish Asterina pectinifera (2002), Comp. Biochem. Physiol. B, 132, 485-490.
    View publication on PubMed

Metals/Ions

Metals/Ions Comment Organism Structure
additional information no activation by Ca2+ Patiria pectinifera

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
28000
-
x * 28000, SDS-PAGE Patiria pectinifera

Organism

Organism UniProt Comment Textmining
Patiria pectinifera
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Patiria pectinifera

Source Tissue

Source Tissue Comment Organism Textmining
pyloric cecum
-
Patiria pectinifera
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
25
-
-
Patiria pectinifera

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Nalpha-p-tosyl-L-Arg methyl ester + H2O
-
Patiria pectinifera ?
-
?

Subunits

Subunits Comment Organism
? x * 28000, SDS-PAGE Patiria pectinifera

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55
-
-
Patiria pectinifera

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
40 60 40°C: 40% of maximal activity, 60°C: about 90% of maximal activity Patiria pectinifera

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
pH 8.0, 15 min, stable below Patiria pectinifera
50
-
pH 8.0, 15 min, about 30% loss of activity Patiria pectinifera
60
-
pH 8.0, 15 min, about 90% loss of activity Patiria pectinifera

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
-
Patiria pectinifera

pH Range

pH Minimum pH Maximum Comment Organism
6 9 pH 6.0: about 35% of maximal activity, pH 9.0: about 70% of maximal activity Patiria pectinifera