The MIH64 monoclonal antibody specifically binds to V-domain Ig suppressor of T cell activation (VISTA) which is also known as, Differentiation of ESCs 1 (Dies1). VISTA is a type I transmembrane glycoprotein that belongs to the Ig superfamily. VISTA has homology to the B7 family ligand, PD-L1 (CD274), and is likewise known as PD-1H. VISTA is expressed on naïve and activated T cells, natural killer (NK) cells, macrophages, dendritic cells, and neutrophils. VISTA functions as an inhibitory ligand. It can serve as a negative immune-checkpoint protein that suppresses T cell cytokine production and proliferation. It is also involved in regulating stem cell differentiation.
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.