A3809
Asparaginase from Escherichia coli
lyophilized powder, 100-300 units/mg protein (biuret)
Synonym(s):
L-Asparagine Amidohydrolase
About This Item
Recommended Products
form
lyophilized powder
Quality Level
specific activity
100-300 units/mg protein (biuret)
composition
Protein, ≥60%
storage temp.
2-8°C
Looking for similar products? Visit Product Comparison Guide
General description
Application
- to compare the cytotoxic effect of L-asparaginase purified from Streptomyces brollosae NEAE-115
- as a standard in asparaginase assay to quantify asparaginase activities in various eel tissues
- to elicit amino acid deprivation
Biochem/physiol Actions
Unit Definition
Physical form
Preparation Note
Analysis Note
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Repr. 2 - Skin Sens. 1
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
Regulatory Information
Choose from one of the most recent versions:
Certificates of Analysis (COA)
Don't see the Right Version?
If you require a particular version, you can look up a specific certificate by the Lot or Batch number.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
How does the storage temperature relate to shipping conditions?
The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
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.
How should this enzyme (Product No. A3809) be reconstituted?
Prior to determining the activity of this enzyme, Sigma reconstitutes it directly in deionized water. Solutions should be prepared fresh, as the stability of stock solutions has not been evaluated.
What is the source of this enzyme (Product No. A3809)?
This enzyme is obtained from a natural extraction of E. coli. It is not from a recombinant source.
What is the molecular weight of this enzyme (Product No. A3809)?
This enzyme consists of a tetramer composed of four identical subunits of 34,080 Daltons each. The molecular weight of the tetramer is 136,320 Daltons.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service