Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
The protein A: biotin molar ratio is determined on a lot-specific basis. Binding strength is as follows: strongly reactive, guinea pig, human IgG1, IgG2, and IgG4, and rabbit; weakly reactive: bovine, human IgA, IgM, and IgE, and mouse; nonreactive: goat, horse, human IgD and IgG3, rat, and sheep. o-phenylenediamine, 1.0 mg/ml in citrate buffer, pH 4.5, 0.1% urea peroxide at 25°C, was used as substrate for testing biotin-Protein A and avidin peroxidase functionality. Variables associated with assay conditions will dictate the proper working dilution.
Biological Information
Purity
A single band at MW 50,000 by SDS-PAGE
Concentration Label
Please refer to vial label for lot-specific concentration
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Storage and Shipping Information
Ship Code
Ambient Temperature Only
Toxicity
Standard Handling
Storage
-20°C
Avoid freeze/thaw
Avoid freeze/thaw
Do not freeze
Ok to freeze
Special Instructions
Following initial thaw, aliquot and freeze (-20°C).
Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.
Revision
27-June-2007 RFH
Application
Solid Phase Immunoassay (1:10,000)
Description
Native protein from Straphylococcus Aureus, conjugated to biotin. Recognizes the Fc portions of immunoglobulins of various species.
Background
Long-chain NHS-Biotin-labeled Protein A is an extremely useful reagent because of its high binding affinity for avidin, streptavidin and avidin- or streptavidin-labeled compounds. Protein A is the universal secondary antibody because it binds to the Fc portions of most immunoglobulin classes. It is a versatile and economic means to isolate, detect and purify antibodies produced by many animals. It is especially useful in immunohistochemical studies because, unlike secondary antibodies, it does not bind to cell Fc receptors, and therefore will not give high background reactions.
Form
Liquid
Formulation
In 10 mM PBS, 1% BSA, pH 7.6.
Concentration Label
Please refer to vial label for lot-specific concentration
Purity
A single band at MW 50,000 by SDS-PAGE
Preservative
≤0.1% sodium azide
Comments
The protein A: biotin molar ratio is determined on a lot-specific basis. Binding strength is as follows: strongly reactive, guinea pig, human IgG1, IgG2, and IgG4, and rabbit; weakly reactive: bovine, human IgA, IgM, and IgE, and mouse; nonreactive: goat, horse, human IgD and IgG3, rat, and sheep. o-phenylenediamine, 1.0 mg/ml in citrate buffer, pH 4.5, 0.1% urea peroxide at 25°C, was used as substrate for testing biotin-Protein A and avidin peroxidase functionality. Variables associated with assay conditions will dictate the proper working dilution.
Storage
Avoid freeze/thaw
-20°C
Do Not Freeze
Ok to freeze
Special Instructions
Following initial thaw, aliquot and freeze (-20°C).
