The J4-117 monoclonal antibody specifically recognizes CD72. CD72 is a 39-43 kDa type II integral membrane protein that belongs to the C-type lectin superfamily. CD72 is expressed on B cells from early precursor stages through mature B cells. CD72 is not expressed on plasma cells. CD72 is also expressed on follicular dendritic reticulum cells and some macrophages. CD72 has been reported to bind to CD5, a glycoprotein expressed on all mature T cells and a subpopulation of B cells, suggesting a role in regulating T- and B-cell activation and proliferation.
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.