77151

Pepsina

powder, slightly beige, 1200-2400 U/mg

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

Proprietà

• 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)

Descrizione

Application

La scissione con pepsina può essere utilizzata per produrre frammenti F(ab′)₂ di anticorpi. pepsina su www.sigma-aldrich.com/enzymeexplorer.

Biochem/physiol Actions

Scissione preferenziale: residui idrofobi e aromatici nelle posizioni P1 e P1′. Scinde i legami Phe-Val, Gln-His, Glu-Ala, Ala-Leu, Leu-Tyr, Tyr-Leu, Gly-Phe, Phe-Phe e Phe-Tyr nella catena β dell′insulina.

Analysis Note

Il PH ottimale è compreso tra 2 e 4. Attivo in 4 M di urea e 3 M di guanidina HCl. Stabile a 60 °C. La pepsina viene inattivata irreversibilmente in presenza di 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.

Informazioni sulla sicurezza

• 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
• Classe di stoccaggio: 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