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Literature summary for 3.4.21.4 extracted from

  • Kurtovic, I.; Marshall, S.N.; Simpson, B.K.
    Isolation and characterization of a trypsin fraction from the pyloric ceca of chinook salmon (Oncorhynchus tshawytscha) (2006), Comp. Biochem. Physiol. B, 143, 432-440.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
benzamidine 5 mM, 22% residual activity Oncorhynchus tshawytscha
EDTA 50 mM, 88% residual activity Oncorhynchus tshawytscha
additional information not inhibitory: Ca2+ up to 500 mM Oncorhynchus tshawytscha
phenylmethylsulfonyl fluoride 5 mM, 43% residual activity Oncorhynchus tshawytscha
Soybean trypsin inhibitor 0.025% w/v, 0.3% residual activity Oncorhynchus tshawytscha

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
28000
-
x * 28000, SDS-PAGE Oncorhynchus tshawytscha

Organism

Organism UniProt Comment Textmining
Oncorhynchus tshawytscha
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
cecum pyloric ceca Oncorhynchus tshawytscha
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.47
-
pH 8.2, 25°C Oncorhynchus tshawytscha

Substrates and Products (Substrate)

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

Subunits

Subunits Comment Organism
? x * 28000, SDS-PAGE Oncorhynchus tshawytscha

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Oncorhynchus tshawytscha

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
unstable above Oncorhynchus tshawytscha

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5 10 at 25°C Oncorhynchus tshawytscha

pH Range

pH Minimum pH Maximum Comment Organism
4
-
inactive below Oncorhynchus tshawytscha

pH Stability

pH Stability pH Stability Maximum Comment Organism
4 10 at 20°C Oncorhynchus tshawytscha