T4549
Trypsin solution from porcine pancreas
sterile-filtered, BioReagent, suitable for cell culture, 25 g porcine trypsin per liter in 0.9% sodium chloride
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.75
Recommended Products
biological source
Porcine
Quality Level
sterility
sterile-filtered
product line
BioReagent
form
solution
mol wt
23.4 kDa
technique(s)
cell culture | mammalian: suitable
pH
7.6
shipped in
dry ice
storage temp.
−20°C
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Application
For trypsin digestion of peptides, use a ratio of about 1:100 to 1:20 for trypsin:peptide. The typical use for this product is in removing adherent cells from a culture surface. The concentration of trypsin necessary to dislodge cells from their substrate is dependent primarily on the cell type and the age of the culture. Trypsins have also been used for the re-suspension of cells during cell culture, in proteomics research for digestion of proteins and in various in-gel digestions. Additional applications include assessing crystallization by membrane-based techniques and in a study to determine that protein folding rates and yields can be limited by the presence of kinetic traps.
Biochem/physiol Actions
Trypsin cleaves peptides on the C-terminal side of lysine and arginine residues. The rate of hydrolysis of this reaction is slowed if an acidic residue is on either side of the cleavage site and hydrolysis is stopped if a proline residue is on the carboxyl side of the cleavage site. The optimal pH for trypsin activity is 7-9. Trypsin can also act to cleave ester and amide linkages of synthetic derivatives of amino acids. EDTA is added to trypsin solutions as a chelating agent that neutralizes calcium and magnesium ions that obscure the peptide bonds on which trypsin acts. Removing these ions increases the enzymatic activity.
Serine protease inhibitors, including DFP, TLCK, APMSF, AEBSEF, and aprotinin, amongst others, will inhibit Trypsin.
Serine protease inhibitors, including DFP, TLCK, APMSF, AEBSEF, and aprotinin, amongst others, will inhibit Trypsin.
Caution
This product should be stored frozen at -20°C.
Unit Definition
One BAEE unit will produce a A253 of 0.001 per minute at pH 7.6 at 25°C using BAEE as a substrate.
Preparation Note
This is 25 g/L porcine trypsin solution in 0.9% sodium chloride.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Protocols
Trypsin is commonly used for dissociating adherent cells from surfaces. A wide variety of trypsin solutions are available to meet your specific cell line requirements.
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