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Literature summary for 3.4.21.4 extracted from

  • Unajak, S.; Meesawat, P.; Paemanee, A.; Areechon, N.; Engkagul, A.; Kovitvadhi, U.; Kovitvadhi, S.; Rungruangsak-Torrissen, K.; Choowongkomon, K.
    Characterisation of thermostable trypsin and determination of trypsin isozymes from intestine of Nile tilapia (Oreochromis niloticus L.) (2012), Food Chem., 134, 1533-1541.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
alkylbenzene sulfonate 1% v/v, 257% of initial activity Oreochromis niloticus

Inhibitors

Inhibitors Comment Organism Structure
Adunil CEL 0.1% v/v, 47.3% residual activity Oreochromis niloticus
dithiothreitol 1 mM, no residual activity Oreochromis niloticus
EDTA 1 mM, 53.9% residual activity Oreochromis niloticus
sodium dodecylsulfate 0.5% w/v, no residual activity Oreochromis niloticus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.16
-
benzoyl-DL-Arg-4-nitroanilide pH 8.0, 50°C Oreochromis niloticus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22390
-
x * 22390, SDS-PAGE, major isoform Oreochromis niloticus

Organism

Organism UniProt Comment Textmining
Oreochromis niloticus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Oreochromis niloticus

Source Tissue

Source Tissue Comment Organism Textmining
intestine 6 isoforms of trypsin are found in different ages Oreochromis niloticus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
23.7
-
pH 8.0, 50°C Oreochromis niloticus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
benzoyl-DL-Arg-4-nitroanilide + H2O
-
Oreochromis niloticus benzoyl-DL-Arg + 4-nitroaniline
-
?

Subunits

Subunits Comment Organism
? x * 22390, SDS-PAGE, major isoform Oreochromis niloticus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55 60
-
Oreochromis niloticus

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
23.8
-
benzoyl-DL-Arg-4-nitroanilide pH 8.0, 50°C Oreochromis niloticus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9
-
-
Oreochromis niloticus

pH Range

pH Minimum pH Maximum Comment Organism
6 11
-
Oreochromis niloticus