The CK41 monoclonal antibody specifically binds to Nectin-1, which is also known as, CD111, Poliovirus receptor-related protein 1(PRR1, PVRL1), Herpes virus entry mediator C (HveC), or Herpesvirus Ig-like receptor (HIgR). Nectin-1 is a type I transmembrane glycoprotein that belongs to the Ig gene superfamily. CD111 is expressed on a variety of cell types including, epithelial cells, endothelial cells, neuronal cells, megakaryocytes, and CD34 positive stem cells. CD111 functions as a receptor for herpes simplex virus 1 (HSV 1) and HSV 2. Nectin-1 also serves as an intercellular adhesion molecule helping to form junctions between cells, eg, between endothelial cells or epithelial cells. Nectin-1 can bind to other Nectin-1 molecules and Nectin family members and to CD155 (Poliovirus Receptor/PVR).
The antibody was conjugated to BD Horizon™ BV650 which is part of the BD Horizon Brilliant™ Violet family of dyes. This dye is a tandem fluorochrome of BD Horizon BV421 with an Ex Max of 405-nm and an acceptor dye with an Em Max at 650-nm. BD Horizon BV650 can be excited by the violet laser and detected in a filter used to detect APC-like dyes (eg, 660/20-nm filter). Due to the excitation and emission characteristics of the acceptor dye, there will be spillover into the APC and Alexa Fluor® 700 detectors. However, the spillover can be corrected through compensation as with any other dye combination.