The 12F1 monoclonal antibody specifically binds to CD49b. CD49b is also known as the integrin α2 chain (VLA-α2), a member of the integrin family of extracellular matrix and cell-cell adhesion receptors. VLA-α2 is non-covalently associated with VLA-β1 chain (CD29) in the VLA-2 complex. α2 is expressed on numerous cell types including activated T cells, platelets, and long-term cultivated T cells. α2β1 is a well-established receptor for collagen. This antibody is useful for studies of integrin expression and function.
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 or other oligo-dT-based capture systems. The 5' PCR handle allows for efficient sequencing library generation for Illumina sequencing platforms.