Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate SEMA3F in samples. An antibody specific for SEMA3F has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anySEMA3F present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for SEMA3F 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 SEMA3F bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:The semaphorins are a family of proteins that are involved in signaling. Sequence comparisons have grouped the secreted semaphorins into 3 general classes, all of which also have an immunoglobulin domain. The semaphorin III family, consisting of human semaphorin III (SEMA3A), chicken collapsin, and mouse semaphorins A, D, and E, all have a basic domain at the C terminus. Chicken collapsin contributes to path finding by axons during development by inhibiting extension of growth cones through an interaction with a collapsin response mediator protein of relative molecular mass 62K (CRMP62), a putative homolog of an axonal guidance associated UNC33 gene product. SEMA3F is a secreted member of the semaphorin III family.
