|Name & Catalogue No.||Description||Applications|
|Rubella KOS Concentrate EL-05-13-001 (1 mL) EL-05-13-010 (10 mL)||
|Rubella K1S EL-05-10-001 (1 mL) EL-05-10-010 (10 mL)||
|Rubella K2S EL-05-11-001 (1mg) EL-05-11-005 (5mg)||
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Product Information Sheet
Frequently Asked Questions
How do I choose between the 3 grades of rubella?
All three rubella antigens are suitable for commonly used immunoassays. Typically selection of the antigen will depend on the application and the specific assay set up.
Rubella K0S antigen is suitable for assays that can tolerate a large amount of the antigen in the assay. It is a cost-effective antigen that could be suitable for initial and investigative stages of the assay development. This product contains extraneous protein that could compete with rubella antigen for binding to analytes or solid support. It is not recommended for assays or applications which require direct covalent coupling of the antigen to another entity.
Rubella K1S antigen is purified by sucrose gradient centrifugation and ratio of rubella antigen to extraneous protein is significantly higher than for Rubella K0S antigen. As such it can be used in any assay set up including assays that require direct covalent conjugation of the antigen, with appreciable conjugation efficiency.
Rubella K2S as highly purified product contains rubella virus only and no extraneous protein. As such this antigen is ideal for assays that require highest level of sensitivity and specificity. Due to the high purity level of Rubella K2S antigen, the antigen can be used for conjugation to other entities such as other proteins (e.g. antibodies, enzymes) or to solid support and particles (latex, iron, nanogold) with maximum conjugation efficiency. Generally, Rubella K2S antigen is used at a high dilution due to the high purity of the antigen.