77160
Pepsin from porcine gastric mucosa
powder, slightly beige, ≥500 U/mg
Synonym(s):
Pepsin A, Pepsin from hog stomach
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About This Item
CAS Number:
UNSPSC Code:
12352204
eCl@ss:
42010127
EC Number:
232-629-3
NACRES:
NA.54
MDL number:
Specific activity:
≥500 U/mg
form
powder
Quality Level
specific activity
≥500 U/mg
mol wt
35 kDa
color
slightly beige
UniProt accession no.
storage temp.
2-8°C
Gene Information
pig ... LOC396892(396892)
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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
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.
Other Notes
Peptide synthesis, Review.
One unit corresponds to the amount of enzyme which increases the absorbance at 280 nm by 0.001 per minute at pH 2.0 and 37 °C (Hemoglobin, Catalog No. 51290, as substrate); 15,000 absorbance units as described above are equivalent to ∼1 Bergmeyer unit. One Bergmeyer unit is the amount of enzyme which hydrolyzes 1 μmole Acetyl-L-phenyl-3,5-diiodo-L-tyrosine at pH 2.0 and 37 °C.
Peptide synthesis,citationcitation Review.citation
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signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Regulatory Information
动植物源性产品
低风险生物材料
常规特殊物品
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J.S. Fruton
Carlsberg Research Communications, 49, 41-41 (1984)
C A Abdel Malak et al.
International journal of peptide and protein research, 41(2), 97-101 (1993-02-01)
Swine pepsin at pH 5 efficiently catalyzes a condensation between Z-Ala-Ala-Phe-OH and p-nitroanilides of Leu, Phe, Val, Ala and Arg that leads to formation of corresponding benzyloxycarbonyl-tetrapeptide p-nitroanilides with yields of 70-90%. These reactions are complicated by co-precipitation of pepsin
Ludovic Hermabessiere et al.
The Science of the total environment, 749, 141651-141651 (2020-08-25)
Plastic pollution is a source of chemical to the environment and wildlife. Despite the ubiquity of plastic pollution and thus plastic additive in the environment, plastic additives have been studied to a limited extend. As a prerequisite to a study
M.P. Bemquerer et al.
Biomedica Biochimica Acta, 50 (1991)
Abdelhacib Kihal et al.
Animals : an open access journal from MDPI, 11(8) (2021-08-28)
The aim of this study was to determine the capacity of six mycotoxin binders (MTBs) to adsorb vitamins A, D and E in an in vitro system that simulates gastric and intestinal digestion. Experiment 1 evaluated the recovery rate of
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 77160-100G | 04061833311936 |
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