The SH1 monoclonal antibody specifically binds to mouse Siglec-G (sialic acid binding immunoglobulin-like lectin G), also known as Siglec10. Siglec-G is a Type I transmembrane glycoprotein that belongs to the Immunoglobulin superfamily. Siglec-G functions as an adhesion molecule that mediates sialic-acid dependent binding to cells. Siglec-G is expressed on cells of the B cell lineage. Siglec-G is most highly expressed by pre-B cells and B1a cells within the B cell lineage and is not detectable on T cells. Siglec-G can inhibit B cell receptor-mediated calcium signaling when it is overexpressed. Mice that lack Siglec-G have significantly increased numbers of B1a cells that begins early in development and is B cell intrinsic. Siglec-G-deficient mice have higher titers of natural IgM antibodies than their normal counterparts. Mouse Siglec-G is the ortholog of human Siglec-10 (also known as, CD330).
This antibody is conjugated to BD Horizon™ BV605 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max of 602-nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20-nm filter set. BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605-nm. Due to the excitation of the acceptor dye by the green (532 nm) and yellow-green (561 nm) lasers, there will be significant spillover into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers. BD Horizon BV605 conjugates are very bright, often exhibiting brightness equivalent to PE conjugates and can be used as a third color off of the violet laser.