The B1/35 monoclonal antibody specifically binds to CD248 which is also known as Endosialin, Tumor endothelial marker 1 (TEM1), and CD164 sialomucin-like 1 (CD164L1). CD248 is a heavily glycosylated, single-pass type I transmembrane protein. CD248 belongs to the Group XIV C-Type lectin family that includes CD93 and CD141/thrombomodulin. It is expressed on pericytes and stromal fibroblasts. Although the exact functions of CD248 remain to be determined, its expression is associated with angiogenesis and lymphoid tissue organization during development, as well as, with postnatal inflammation and tumor development and growth.
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.