The MH7E7 monoclonal antibody specifically recognizes the extracellular domain of mouse Dendritic cell inhibitory receptor 4 (DCIR4). DCIR4 is a lectin receptor that is encoded by Clec4a1 (C-type lectin domain family 4, member a1) which belongs to the dendritic cell immunoreceptor (DCIR) family. DCIR4 (Clec4a1) is variably expressed on CD11b+ monocytes found in peripheral blood, secondary lymphoid tissues and the bone marrow. DCIR4 (Clec4a1) is reportedly expressed at low levels on Ly-6C-positive inflammatory monocytes and at high levels on Ly-6C-negative patrolling monocytes. It is not significantly expressed on eosinophils and neutrophils.
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.