Invitrogen™ Human L-Selectin (CD62L) (Soluble) ELISA Kit

Description

The Human L-Selectin (CD62L) ELISA quantitates Hu L-Selectin in human serum, plasma or cell culture medium. The assay will exclusively recognize both natural and recombinant Hu L-Selectin. Principle of the method The Human L-Selectin solid-phase sandwich ELISA (enzyme-linked immunosorbent assay) is designed to measure the amount of the target bound between a matched antibody pair. A target-specific antibody has been pre-coated in the wells of the supplied microplate. Samples, standards, or controls are then added into these wells and bind to the immobilized (capture) antibody. The sandwich is formed by the addition of the second (detector) antibody, a substrate solution is added that reacts with the enzyme-antibody-target complex to produce measurable signal. The intensity of this signal is directly proportional to the concentration of target present in the original specimen. Rigorous validation Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.

The human CD62L is a 74-95 kDa glycoprotein member of the selectin family of adhesion receptors. L-Selectin is comprised of an aminoterminal C-type lectin binding domain, an epidermal growth factor-like domain, two short consensus repeat (SCR) sequences homologous to those found in complement binding proteins, a short spacer region, a transmembrane region and a short cytoplasmic region. Human CD62L (L-Selectin) is constitutively expressed on all classes of leukocytes including lymphocytes (except a substantial population of memory T cells), monocytes and polymorphonuclear cells.