Avidin, synthesized in the hen oviduct, is a glycoprotein of MW 68kD which occupies about 0.05% of the total protein content of the hen egg white. Native avidin is a tetrameric protein composed of four identical subunits. Each subunit is glycosylated at 17-Asparagine.
Applications
Suitable for Western Blot, Dot Blot, ELISA, Immunoperoxidase Electron Microscopy and Immunohistochemistry. Other applications not tested.
Recommended Dilutions
ELISA: 1:100,000 Western Blot: 1:2000-1:10,000 Immunohistochemistry: 1:1000-1:5000 Optimal dilutions to be determined by the researcher.
Storage and Stability
Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute by adding sterile 40-50% glycerol, ddH2O. Aliquot and store at -20°C. Reconstituted product is stable for 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer. Labeled with horseradish peroxidase (HRP). Sodium Azide is a potent inhibitor of peroxidase and should not be added to HRP conjugates.
Source
Horseradish peroxidase
Purity
Purified by chromatography. IEP Assay shows a single precipitin arc against anti-Avidin and anti-Peroxidase.
Form
Supplied as a lyophilized powder in PBS, pH 7.2, 10mg/ml BSA, (IgG and protease free), 0.01% gentamicin sulfate. Labeled with Horseradish Peroxidase (HRP). Reconstitute with 1ml sterile 40-50% glycerol, dH2O.
Important Note
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.