77151
Pepsin from porcine gastric mucosa
powder, slightly beige, 1200-2400 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:
1200-2400 U/mg
form
powder
specific activity
1200-2400 U/mg
mol wt
35 kDa
color
slightly beige
UniProt accession no.
storage temp.
2-8°C
Gene Information
pig ... LOC396892(396892)
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
1 U 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, Cat.No. 51290, as substrate) 15′000 absorbance-U as described above are equivalent to ∼1 Bergmeyer-U. 1 Bergmeyer-U is the amount of enzyme which hydrolyzes 1 μmol Acetyl-L-phenyl-3,5-diiodo-L-tyrosine at pH 2.0 and 37°C
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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
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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
Benoît Stijlemans et al.
PLoS pathogens, 7(6), e1002072-e1002072 (2011-06-24)
The African trypanosome Trypanosoma brucei, which persists within the bloodstream of the mammalian host, has evolved potent mechanisms for immune evasion. Specifically, antigenic variation of the variant-specific surface glycoprotein (VSG) and a highly active endocytosis and recycling of the surface
Gastric proteinases--structure, function, evolution and mechanism of action.
B Foltmann
Essays in biochemistry, 17, 52-84 (1981-01-01)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 77151-5G | 04061833627396 |