SEMA7A is a membrane-bound semaphorin that associates with cell surfaces via a glycosylphosphatidylinositol (GPI) linkage. SEMA7A is also known as the John-Milton-Hagen (JMH) blood group antigen, an 80-kD glycoprotein expressed on activated lymphocytes and erythrocytes.Czopik et al. (2006) found that T cells from immunized Sema7a -/- mice had increased proliferative responses to antigen that were not attributable to Sema7a deficiency on macrophages or dendritic cells. Sema7a -/- mice were prone to die at the onset of experimental autoimmune encephalomyelitis (EAE) and had higher clinical EAE scores compared with wildtype littermates. Delayed-type hypersensitivity responses were also enhanced in Sema7a -/- mice.
Human Semaphorin-7A (SEMA7A) ELISA Kit employs a two-site sandwich ELISA to quantitate SEMA7A in samples. An antibody specific for SEMA7A has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anySEMA7A present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for SEMA7A is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of SEMA7A bound in the initial step. The color development is stopped and the intensity of the color is measured.
Human Semaphorin-7A (SEMA7A) ELISA Kit listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.
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