|Detection of OCIL/CLEC2d in Raji Human Cell Line by Flow Cytometry. Raji human Burkitt's lymphoma cell line was stained with Mouse Anti-Human OCIL/CLEC2d APC‑conjugated Monoclonal Antibody (Catalog # FAB3480A, filled histogram) or isotype control antibody (Catalog # IC002A, open histogram). View our protocol for Staining Membrane-associated Proteins.|
Human OCIL (osteoclast inhibitory lectin; also LLT1 and CLEC-2D) is a member of the NK cell receptor group of the C-type lectin superfamily. It is a type II transmembrane protein 191 amino acids (aa) in length that contains a C-terminal 132 aa extracellular domain (ECD). Within the ECD lies a C-type lectin domain (aa 75‑186). There are at least two alternate splice forms of OCIL. Both exhibit splicing in the ECD. One shows a 40 aa substitution for the C-terminal 37 amino acids. A second shows a 3 aa substitution for the C-terminal 72 amino acids. The ECD of human OCIL is 49% and 50% aa identical to the ECD in mouse and rat OCIL ECD, respectively. The molecule is found on hematopoietic cells, osteoblasts and chondrocytes. It binds sulfated GAGs and NKR-P1B and D receptors, and blocks osteoclast formation.
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