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Description: Intercellular Adhesion Molecule-3 (ICAM-3) is a member of the immunoglobulin supergene family and functions as a ligand for the Lymphocyte Function-Associated Antigen-1 (LFA-1). ICAM-3 is a heavily glycosylated, integral membrane protein with five immunoglobulin-like domains. It shares high homology to ICAM-1 and ICAM-2 in the extracellular region. In contrast to ICAM-1 and ICAM-2, ICAM-3 is absent on endothelia. ICAM-3 is expressed on resting lymphocytes, monocytes and neutrophils, representing the major LFA-1 ligand on these cells. The finding that adhesion of resting T lymphocytes to LFA-1 occurs primarily via ICAM-3 combined with the fact that ICAM-3 is much better expressed than other LFA-1 ligands on monocytes and resting lymphocytes implies an important role for ICAM-3 in the initiation of immune responses.
Applications Tested: Flow Cytometry.
Purity: >95%.
Excitation: 488 nm; Emission: 520 nm; Laser: Blue Laser
CD50 (intracellular adhesion molecule 3, ICAM-3) is a transmembrane glycoprotein expressed by leukocytes, that serves as a counter-receptor for the lymphocyte function-associated antigen (LFA)-1 integrin. Besides functioning as an adhesive molecule that mediates e.g. the contact between T cells and antigen presenting cells, ICAM-3 regulates affinity of LFA-1 for ICAM-1 and induces T cell activation and proliferation. ICAM-3 plays an essential role in the initiation of the immune response both on T cells and antigen presenting cells and interacts also with CD209 (dendritic cell-specific ICAM-3-grabbing nonintegrin, DC-SIGN), a C-type lectin of dendritic cells and macrophages; this process is involved in dialogue between dendritic cells and granulocytes.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
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蛋白别名: CD50; CDw50; ICAM-3; ICAM-R; Intercellular adhesion molecule 3; intercellular adhesion molecule-3
基因别名: CD50; CDW50; ICAM-R; ICAM3
UniProt ID: (Human) P32942
Entrez Gene ID: (Human) 3385