The L178 monoclonal antibody specifically binds to CD44 which is also known as Homing-associated cell adhesion molecule (H-CAM) or Phagocytic glycoprotein 1 (Pgp-1). CD44 is a single-pass type I transmembrane glycoprotein that exists in a variety of isoforms also known as variant CD44 (CD44v) or CD44R forms. CD44 is synthesized as a 37 kDa polypeptide that is converted to an 80-95 kDa form by glycosylation via N- and O-linkages, or to a 180-200 kDa form by the addition of chondroitin sulfate. It is expressed on leucocytes, erythrocytes, epithelial cells and weakly on platelets. Depending on the cell type, CD44 may participate in a variety of functions including cell adhesion, motility and cell activation.
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.