The 705518 monoclonal antibody specifically recognizes C-type lectin domain family 2 member A (CLEC-2A) which is also known as Proliferation-induced lymphocyte-associated receptor (PILAR) or Keratinocyte-associated C-type lectin (KACL). CLEC-2A is a ~35 kDa type II transmembrane glycoprotein that is encoded by CLEC2A which belongs to the C-type lectin superfamily. The extracellular region of CLEC-2A contains one C-type lectin domain. CLEC-2A (PILAR) is expressed on keratinocytes and can activate NK cells through binding to their surface KLRF2 molecules. It is also expressed on activated CD8+ T cells and can costimulate proliferative responses upon interaction with CD161.
The antibody was conjugated to BD Horizon™ BUV496 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome of BD Horizon BUV395 with an Ex Max of 348-nm and an acceptor dye with an Em Max at 496-nm. BD Horizon BUV496 can be excited by the ultraviolet laser (355 nm) and detected with a 515/30 nm filter with a 450LP. Due to the excitation of the acceptor dye by other laser lines, there may be significant spillover into the channel detecting BD Horizon V500 or BV510 (eg, 525/40-nm filter). However, the spillover can be corrected through compensation as with any other dye combination.