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77151

Sigma-Aldrich

Pepsin from porcine gastric mucosa

powder, slightly beige, 1200-2400 U/mg

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Synonym(s):
Pepsin A, Pepsin from hog stomach
CAS Number:
9001-75-6
Enzyme Commission number:
3.4.23.1 (BRENDA, IUBMB)
EC Number:
232-629-3
MDL number:
MFCD00081840
eCl@ss:
42010127
NACRES:
NA.54

form

powder

specific activity

1200-2400 U/mg

mol wt

35 kDa

color

slightly beige

UniProt accession no.

P00791

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

Unit Definition

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

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

Sales restrictions may apply

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Danger

Hazard Statements

H315 - H319 - H334 - H335

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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