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Literature summary for 3.4.17.2 extracted from

  • Kishimura, H.; Hayashi, K.
    Isolation and characteristics of carboxypeptidase B from the pyloric ceca of the starfish Asterias amurensis (2002), Comp. Biochem. Physiol. B, 133, 183-189.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
EDTA 1 mM, 6 h, 90% loss of activity Asterias amurensis
Hg2+ 1 mM, 97% inhibition Asterias amurensis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.71
-
benzoyl-Gly-Arg
-
Asterias amurensis

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ 1 mM, activation to 181% of control Asterias amurensis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
34000
-
x * 34000, SDS-PAGE Asterias amurensis

Organism

Organism UniProt Comment Textmining
Asterias amurensis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Asterias amurensis

Source Tissue

Source Tissue Comment Organism Textmining
pyloric cecum
-
Asterias amurensis
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
460
-
-
Asterias amurensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
benzoyl-Gly-Arg + H2O
-
Asterias amurensis benzoyl-Gly + Arg
-
?

Subunits

Subunits Comment Organism
? x * 34000, SDS-PAGE Asterias amurensis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55
-
-
Asterias amurensis

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 70 30°C: about 40% of maximal activity, 70°C: about 55% of maximal activity Asterias amurensis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30 45 15 min, stable Asterias amurensis
50
-
15 min, about 10% loss of activity Asterias amurensis
60
-
15 min, about 70% loss of activity Asterias amurensis
65
-
15 min, about 10% loss of activity Asterias amurensis

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
427
-
benzoyl-Gly-Arg
-
Asterias amurensis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Asterias amurensis

pH Range

pH Minimum pH Maximum Comment Organism
5.5 9 pH 5.5: about 60% of maximal activity, pH 9.0: about 30% of maximal activity Asterias amurensis