77151

Pepsina from porcine gastric mucosa

powder, slightly beige, 1200-2400 U/mg

• Sinónimos: Pepsina A, Pepsina from hog stomach
• Número CAS: 9001-75-6
• UNSPSC Code: 12352204
• eCl@ss: 42010127
• EC Number: 232-629-3
• NACRES: NA.54
• MDL number: MFCD00081840
• Número CE: 3.4.23.1 (BRENDA, IUBMB)
• Specific activity: 1200-2400 U/mg

Propiedades

• 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)

Descripción

Application

Puede utilizarse hidrólisis con pepsina para producir los fragmentos F(ab′)₂ de los anticuerpos. pepsina en www.sigma-aldrich.com/enzymeexplorer

Biochem/physiol Actions

Escisión preferente: residuos hidrófobos y aromáticos en las posiciones P1 y P1′. Rompe los enlaces Phe-Val, Gln-His, Glu-Ala, Ala-Leu, Leu-Tyr, Tyr-Leu, Gly-Phe, Phe-Phe y Phe-Tyr en la cadena β de la insulina

Analysis Note

pH óptimo es 2-4. Activa en urea 4 M y HCl de guanidina 3 M. Estable a 60 ºC. La pepsina se desactiva de manera irreversible a 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

Disclaimer

Sales restrictions may apply.

Información de seguridad

• pictograms: GHS08,GHS07
• signalword: Danger
• hcodes: H315,H319,H334,H335
• pcodes: P261 - P264 - P271 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Clase de almacenamiento: 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