Protein Isolation and Analysis » Biotin-Protein L

Biotin-Protein L

Protein L is a cell surface protein from Peptostreptoccocus magnus that binds to the variable light chains (kappa chain) of immunoglobulins without interfering with antigen binding. In contrast to IgG-binding proteins, such as protein A and protein G, protein L can be used for the detection and purification of mammalian kappa light chain antibodies of all classes. Biotin-Protein L, which is produced by covalently linking biotin to protein L, can be used in immunodetections, such as immunoblotting (western or dot blot), ELISA, and immunohistochemistry.
M00097
¥18,850.00

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Properties
Reconstitution Reconstitute the lyophilized product with deionized water (or equivalent) to the final concentration of 1.0 mg/ml.
Concentration 1 mg/ml, lyophilized with PBS, pH 7.4, containing 1% BSA and 0.02% sodium azide.
Storage The product remains stable in lyophilized form for at least 1 year if stored at 2-8°C, -20°C, or lower from the date of receipt. For longer storage, -20°C or below is recommended. The reconstituted product can be stored for 2-3 weeks at 2-8°C or for up to 1 year at -20°C or below. Avoid repeated freezing and thawing cycles.

Applications
Working concentrations for specific applications should be determined by titration assay. The chart below may serve as a useful guideline, but primary antibody, temperature, incubation time, the amount of antigen, and the sensitivity of the detection methods can all affect the ideal working concentration.
Application Recommended Usage
Dot blot 1:2,000-1:20,000
Western blot 1:2,000-1:20,000
ELISA 1:20,000-1:100,000
Other applications user-optimized

Background
Target Background Protein L is a cell surface protein from Peptostreptoccocus magnus that binds to the variable light chains (kappa chain) of immunoglobulins without interfering with antigen binding. In contrast to IgG-binding proteins, such as protein A and protein G, protein L can be used for the detection and purification of mammalian kappa light chain antibodies of all classes. Biotin-Protein L, which is produced by covalently linking biotin to protein L, can be used in immunodetections, such as immunoblotting (western or dot blot), ELISA, and immunohistochemistry.

For research use only. Not intended for human and animal therapeutic or diagnostic use.