Immunoglobulin classes share the same basic four polypeptide chain structure of two heavy chains (five heavy chains types) and two light chains (kappa, lambda; both having a molecular weight of 22.5kDa). Kappa and lambda consist of a variable region and a constant region and can easily be differentiated by the antigenic properties of the constant region. The ratio of kappa to lambda is 70:30.
Purified by protein-A affinity chromatography
> 95% (by SDS-PAGE)
Store at 2-8°C. Do not freeze. Do not use after expiration date stamped on vial label.
Substrate / Buffer
Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4
The antibody MEM-09 reacts with both secreted and B cell-surface human immunoglobulin, specifically reacts with kappa light chains (22.5 kDa). <br>Material immunoprecipitated from human serum with the antibody MEM-09 consists of IgG and traces of IgM._x000D_
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