P8811
Protease from Streptomyces griseus
powder, BioReagent, suitable for mouse embryo cell culture, ≥3.5 units/mg solid
Synonym(s):
Actinase E, Pronase E
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About This Item
CAS Number:
UNSPSC Code:
12352207
EC Number:
232-909-5
NACRES:
NA.75
eCl@ss:
32160410
MDL number:
Product Name
Protease from Streptomyces griseus, powder, BioReagent, suitable for mouse embryo cell culture, ≥3.5 units/mg solid
product line
BioReagent
form
powder
specific activity
≥3.5 units/mg solid
technique(s)
cell culture | embryo: suitable
impurities
starch, essentially free
storage temp.
−20°C
Quality Level
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Analysis Note
Contains approximately 25% calcium acetate.
Application
Protease is typically used in nucleic acid isolation procedures in incubations of 0.5-3.0 hours supplemented with 0.2% sodium dodecyl sulfate and 10 mM EDTA.
This enzyme is more active at a higher pH range than the known alkaline protease, showing the proteolytic activity even in 0.2N NaOH solution. This enzyme is useful for proteolysis of insoluble protein and for structure investigation of protein.
Biochem/physiol Actions
A mixture of at least three proteolytic activities including an extracellular serine protease. In general, serine proteases display a wide range of substrate specificities, which are believed to be mediated by an active site composed of one Asp, one His, and a Ser residue in the molecule. This enzyme prefers to hydrolyze peptide bonds on the carboxyl side of glutamic or aspartic acid.
General description
Completely inactivated by heating above 80 °C for 15-20 minutes.
Other Notes
An unusually non-specific protease.
One unit will hydrolyze casein to produce color equivalent to 1.0 μmole (181 μg) of tyrosine per min at pH 7.5 at 37 °C (color by Folin-Ciocalteu reagent).
Preparation Note
Collected from culture broth of S. griseus.
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 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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