V900497
Pepsin from porcine gastric mucosa
Vetec™, reagent grade
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grade
reagent grade
product line
Vetec™
form
solid
specific activity
400-800 units/mg protein
mol wt
35 kDa
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Application
Pepsin cleavage can be used to produce F(ab′)2 fragments of antibodies. pepsin at www.sigma-aldrich.com/enzymeexplorer.
Biochem/physiol Actions
Preferential cleavage: hydrophobic and aromatic residues in P1 and P1′ postitions. Cleaves Phe-Val, Gln-His, Glu-Ala, Ala-Leu, Leu-Tyr, Tyr-Leu, Gly-Phe, Phe-Phe and Phe-Tyr bonds in the β chain of insulin
Unit Definition
One unit will produce a change in A280 of 0.001 per minute at pH 2.0 at 37 deg C, measured as TCA-Soluble products using hemoglobin as substrate.
Analysis Note
Optimum pH is 2-4. Active in 4 M urea and 3 M guanidine HCl. Stable at 60 °C. Pepsin is irreversibly inactivated at pH 8.0 - 8.5.
Legal Information
Vetec is a trademark of Merck KGaA, Darmstadt, Germany
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
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
动植物源性产品
Certificates of Analysis (COA)
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Liu Lin et al.
Frontiers in nutrition, 9, 833712-833712 (2022-03-01)
The effects of condiment (salt) and processing technic (homogenization) on digestion and interfacial properties of micro/nano-sized colloidal particles (MNCPs) in bigeye tuna head soup (BTHS) using simulated gastrointestinal digestion model in vitro were investigated. For MNCPs in BTHS, the triglycerides
Chuan-Hsiao Han et al.
Food chemistry, 138(2-3), 923-930 (2013-02-16)
Our previous report showed that yam dioscorin and its peptic hydrolysates exhibit radical scavenging activities; however, the functions of these peptic hydrolases are still under investigation. In this study, the thiol-containing peptides derived from computer-aided simulation of pepsin hydrolysis of
Gastric proteinases--structure, function, evolution and mechanism of action.
B Foltmann
Essays in biochemistry, 17, 52-84 (1981-01-01)
Dragana Stanic-Vucinic et al.
Molecular nutrition & food research, 56(12), 1894-1905 (2012-10-16)
The aim of this work was to investigate the effects of high-intensity ultrasound (sonication), on the structure and allergenicity of the major cow's milk allergen, beta-lactoglobulin (BLG). Structural changes upon sonication of BLG were monitored by circular dichroism spectroscopy, tryptophan
Mahmoud S Ali et al.
The Laryngoscope, 123(2), 434-439 (2012-10-17)
To assess if, as previously reported in the literature, bile acids inhibit pepsin activity, resulting in pepsin having a less important role in laryngopharyngeal damage in reflux disease. Prospective translational research study. A total of 78 patient's fasting gastric juice
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