There is no specific information available about storing the enzyme at -80°C once it has been reconstituted.
P5147
Proteasa from Streptomyces griseus
Type XIV, ≥3.5 units/mg solid, powder
Sinónimos:
Actinasa E, Pronasa E
About This Item
Productos recomendados
biological source
Streptomyces griseus
Quality Level
type
Type XIV
form
powder
specific activity
≥3.5 units/mg solid
solubility
10 mM NaAc (pH 7.5) and 5 mM CaAc: soluble 0.2 mg/mL at 37 °C, clear, colorless to tan
shipped in
wet ice
storage temp.
−20°C
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Categorías relacionadas
Specificity
Application
- para la digestión de tejido del núcleo pulposo (NP)[3]
- en la catálisis de la reacción de Mannich en cascada (onepot) asimétrica[4]
- para desproteinización del almidón[5]
- digestión de cortes cerebrales para la disociación celular[6]
Biochem/physiol Actions
Features and Benefits
- muy estable en el intervalo de pH de 5,0 a 9,0, con una actividad máxima a pH 8,8
- compatible con muchos tampones de aislamiento de ADN y ARN
- amplia especificidad de sustrato
Quality
Physical properties
Unit Definition
Preparation Note
related product
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_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Certificados de análisis (COA)
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Is it possible to store P5147 at -80°C after reconstitution?
1 answer-
Helpful?
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Under what conditions can Product P5147, Protease from Streptomyces griseus, be used to digest protein?
1 answer-
For DNA isolation, Pronase E is usually prepared as a stock solution, and prior to storage at -20°C, the solution is first heated to 56°C for about 15 minutes, then incubated at 37°C for 1 hour. This encourages self-digestion, to eliminate DNAse and RNAse contamination. The enzyme is added to a DNA sample (in the presence of 0.5-1%(w/v) SDS to disrupt DNA protein interactions) typically at 250-500 μg protein/mL, then incubated at 37°C for 1-4 hours. For protein hydrolysis, dissolve about 0.2 μmol of protein in 0.2 mL of 50 mM ammonium bicarbonate buffer at pH 8 (or phosphate buffer pH 7). Add Pronase to 1% (w/w) and incubate at 37°C for 24 hours. It may be necessary to add aminopeptidase M at 4% (w/w) and incubate at 37°C for another 18 hours.
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Does Product P5147, Protease from Streptomyces griseus, contain calcium acetate?
1 answer-
This product contains calcium acetate buffer salt. The amount of calcium acetate present will vary for each lot number and has been observed to range from 2 - 30% (w/w).
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Is Product P5147, Protease from Streptomyces griseus, also described as "Pronase"?
1 answer-
"Pronase E" is the name given to a group of proteolytic enzymes produced by Streptomyces griseus K-1. At least 10 proteases are in the mixture, five serine-type proteases, two zinc endopeptidases, two zinc leucine aminopeptidases, and one zinc carboxypeptidase.
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How should Product P5147, Protease from Streptomyces griseus, be reconstituted and how should a stock solution be prepared?
1 answer-
This product can be dissolved in 0.01 M sodium acetate with 0.005 M calcium acetate at pH 7.5 at 37°C; at 0.2 mg/mL, this yields a clear solution which ranges from colorless to light tan. Calcium ion is recommended for protection from autolysis. The activity of a dilute enzyme solution containing 0.01 to 0.1 M calcium ion was stable over 24 hours at neutral pH at 2-8°C. Pronase E is stable at 4°C for at least six months. Stock solutions of 5 to 20 mg/mL in water are usually stored at -20°C.
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