P3391
Protein A-Sepharose™ from Staphylococcus aureus
lyophilized powder
Synonym(s):
Protein A–Agarose
About This Item
Recommended Products
form
lyophilized powder
Quality Level
packaging
glass bottle of 1 g
glass bottle of 1.5 g
glass bottle of 250 mg
glass bottle of 5 g
storage condition
do not freeze
extent of labeling
3 mg per mL
technique(s)
affinity chromatography: suitable
color
white to gray
matrix
Sepharose CL-4B
matrix activation
cyanogen bromide
matrix attachment
amino
matrix spacer
1 atom
capacity
≥16 mg/mL binding capacity (human IgG)
solubility
water: 1 g/L at 20 °C
suitability
conforms to structure for swelling capacity (1g swells to 4 to 5 mL)
storage temp.
2-8°C
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General description
Application
- for immunoprecipitated placentas for protein and RNA analyses using Western blot technique.
- in chromatin immunoprecipitation to understand the link between Mediator and remodelling of chromatin structure at specific promoters.
- as lysis buffer to remove endogenous G-type Igs in protein extraction of brain samples from female rats.
- in immunoprecipitation of [32P] phosphomyristin C of rabbit antiserum, to study the down-regulation of protein kinase C (PKC) and phosphomyristin C (PMC) during T-cell development.
Quantity
Physical form
Legal Information
related product
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)
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How do I swell P3391, Protein A-Sepharose® resin?
The lyophilized product should be swollen in buffer A for 30 minutes or longer at room temperature. Do not stir with any kind of mechanical stirrer. One gram of powder typically swells to 3-4 mL of the hydrated gel. This, along with other useful information (such as the formulation of buffer A) can be found on the product information sheet (under Documents, above).
How can I store the hydrated P3391, Protein A-Sepharose® resin?
Suspensions stored in the refrigerator in the presence of a suitable bacteriostatic agent, such as 20% ETOH, retain IgG binding activity. Another storage option is to put the resin into phosphate buffer saline, pH 7 with about 0.01% preservative (thimerosal or sodium azide).
What can P3391, Protein A-Sepharose® resin tolerate?
Protein A Sepharose CL-4B exhibits high chemical and mechanical stability, and is stable over the pH range 2-11. It withstands high concentrations of denaturants, such as urea and guanidine hydrochloride. The gel displays high thermal stability but is not autoclavable. Furthermore, the gel can, if handled with care, be used many times.
How do I clean Product P3391, Protein A-Sepharose®, resin?
It may be possible to clean the resin by washing it with 10-20 volumes of 100 mM Tris or borate buffer, pH8.5, containing 0.5-2.0 M NaCl, followed by 10-20 volumes of 100 mM acetate buffer, pH 4.0, containing0.5-2.0 M NaCl. Re equilibrate the resin with 20 volumes of buffer A.
What is the binding capacity of Product P3391, Protein A-Sepharose®, resin for my immunoglobulins?
A table is available on the product information sheet (under Documents, above).
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.
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Articles
Antibody fragmentation with our pepsin digestion protocol for IgG antibody fragmentation and preparation of F(ab’).
Protocols
Techniques for protein antigen molecular weight determination, protein interactions, enzymatic activity, and post-translational modifications.
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