Clone REAL163 is an antibody fragment derived from the full CD62L antibody molecule. It displays no binding to Fc receptors. The recombinantly engineered antibody fragments are multimerized to form the REAlease Complex to bind markers with high avidity.

Clone REAL163 recognizes the human CD62L antigen, a 74 kDa single-pass type I membrane protein which is also known as L-selectin, LECAM-1, or LAM-1. CD62L is a member of the selectin family of cell surface molecules and binds a series of glycoproteins including CD34, GlyCAM-1, and MAdCAM-1. Most hematopoietic cells express CD62L, including peripheral blood B cells, T cells, monocytes, granulocytes, thymocytes, and some myeloid cells from bone marrow. Expression on resting naive, central memory, and some effector memory T cells regulates their migration via endothelial venules to peripheral lymph nodes and Peyer’s patches. The CD62L antigen also contributes to the recruitment of leukocytes from the blood to areas of inflammation. Disruption of CD62L expression has detrimental effects on T cell migration and immune responses. Antigenic activation in the lymph node leads first to rapid CD62L shedding by protease cleavage and then to transcriptional suppression.

Always use fresh material for immunofluorescent staining of CD62L⁺ cells. For optimal results, the cells should not be older than 8–12 hours. Keep cells continuously cold. CD62L-expression may be rapidly lost due to shedding.

The REAlease Kits consist of the respective fluorochrome-conjugated REAlease Complexes and the REAlease Support Kit for removal of the REAlease Complexes and optional relabeling with different fluorochrome-conjugated REAlease Complexes.

Alternative names

L-selectin, LAM-1, LECAM-1, Leu-8, TQ1, gp90-MEL, Lnhr, LSEL, Lyam1, PLNHR

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