The 17G10.2 monoclonal antibody specifically binds to human Immunoglobulin Like Transcript 7 (ILT7), also known as CD85g. The ILT7 protein is encoded by the LILRA4 (Leukocyte Immunoglobulin Like Receptor subfamily A member 4) gene. ILT7 is a member of immunoglobulin-like transcripts (ILT) or leukocyte immunoglobulin-like receptor (LIR) gene family. ILT7 is selectively expressed on plasmacytoid dendrtic cells (pDC) but not on myeloid dendritic cells or other peripheral blood leukocytes. In response to IL-3, IL-3 receptor complex signaling downregulates ILT7 expression by pDC. ILT7 associates with the FcεRIγ signal adapter protein to form a receptor complex that can signal through activation of an immunoreceptor-based tyrosine activation motif (ITAM)-mediated signaling pathway. Signaling through the ILT7-FcεRIγ receptor complex negatively regulates the innate immune functions of pDC. ILT7 crosslinking inhibits TLR responses by pDC such as the stimulated production of type I interferon and other cytokines. Bone marrow stromal cell antigen 2 (BST2) has been identified as a biological ligand for ILT7.
The antibody was conjugated to an oligonucleotide that contains an antibody clone-specific barcode (ABC) flanked by a poly-A tail on the 3' end and a PCR handle (PCR primer binding site) on the 5' end. The ABC for this antibody was designed to be used with other BD AbSeq oligonucleotides conjugated to other antibodies. All AbSeq ABC sequences were selected in silico to be unique from human and mouse genomes, have low predicted secondary structure, and have high Hamming distance within the BD AbSeq portfolio, to allow for sequencing error correction and unique mapping. The poly-A tail of the oligonucleotide allows the ABC to be captured by the BD Rhapsody™ system. The 5' PCR handle allows for efficient sequencing library generation for Illumina sequencing platforms.
NOTE: The BD Rhapsody Single-Cell Analysis System must be used with the BD Rhapsody Express Instrument.