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Literature summary for 3.4.24.12 extracted from

  • Edwards, B.F.; Allen, W.R.; Barrett, D.
    Purification and partial characterization of hatching protease of the sea urchin, Strongylocentrotus purpuratus (1977), Arch. Biochem. Biophys., 182, 696-704.
    View publication on PubMed

General Stability

General Stability Organism
glycerol, 10% v/v, improves stability to either freezing or heating Strongylocentrotus purpuratus
glycerol, 5% v/v, protects from inactivation Strongylocentrotus purpuratus
low concentrations of albumin considerably stabilize the enzyme Strongylocentrotus purpuratus
stable to freezing and thawing Strongylocentrotus purpuratus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information
-
Strongylocentrotus purpuratus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
28500
-
1 * 28500, SDS-PAGE Strongylocentrotus purpuratus
30000
-
gel filtration Strongylocentrotus purpuratus

Organism

Organism UniProt Comment Textmining
Strongylocentrotus purpuratus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Strongylocentrotus purpuratus

Source Tissue

Source Tissue Comment Organism Textmining
hatching liquid
-
Strongylocentrotus purpuratus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Strongylocentrotus purpuratus
1.44
-
-
Strongylocentrotus purpuratus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
dimethylated casein + H2O
-
Strongylocentrotus purpuratus ?
-
?
Dimethylcasein + H2O
-
Strongylocentrotus purpuratus ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 28500, SDS-PAGE Strongylocentrotus purpuratus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
42
-
-
Strongylocentrotus purpuratus

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
26 50 26°C: about 50% of maximal activity, 50°C: about 35% of maximal activity Strongylocentrotus purpuratus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
37
-
half-life: 0.33 h Strongylocentrotus purpuratus

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.72
-
dimethylated casein
-
Strongylocentrotus purpuratus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7 9
-
Strongylocentrotus purpuratus

pH Range

pH Minimum pH Maximum Comment Organism
6.5 9 pH 6.5: about 55% of maximal activity, pH 9.0: about 45% of maximal activity Strongylocentrotus purpuratus