Rat JAM-2 / JAM-B Protein (Fc Tag)
JAM2
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| Catalog Number | P80376-R02H |
|---|---|
| Organism Species | Rat |
| Host | Human Cells |
| Synonyms | JAM2 |
| Molecular Weight | The recombinant rat JAM2/Fc is a disulfide-linked homodimer. The reduced monomer comprises 449 amino acids and has a predicted molecular mass of 50.3 kDa. The apparent molecular mass of the protein is approximately 61 kDa in SDS-PAGE under reducing conditions. |
| predicted N | Phe 29 |
| SDS-PAGE |  |
| Purity | > 90 % as determined by SDS-PAGE |
| Protein Construction | A DNA sequence encoding the rat JAM2 (Q3MHC0) (Met1-Asn236) was expressed, fused with the Fc region of human IgG1 at the C-terminus. |
| Bio-activity | |
| Research Area | Immunology |Signal Transduction |Cytoskeleton / ECM |Cell Adhesion |Tight Junctions |
| Formulation | Lyophilized from sterile PBS, pH 7.4 1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA. |
| Background | Junctional adhesion molecule B (JAM-B), also known as Junctional adhesion molecule 2 (JAM2), Vascular endothelial junction-associated molecule (VE-JAM), and CD322, is a single-pass type I membrane protein which belongs to the immunoglobulin superfamily. It is prominently expressed on high endothelial venules. expression to be restricted to the high endothelial venule of tonsil and lymph nodes. The localization to the endothelium of arterioles in and around inflammatory and tumor foci. JAM-B can function as an adhesive ligand for the T cell line J45 and can interact with GM-CSF/IL-4-derived peripheral blood dendritic cells, circulating CD56(+) NK cells, circulating CD56(+)CD3(+) NK/T cells, and circulating CD56(+)CD3(+)CD8(+) cytolytic T cells. JAM-2 is expressed on high endothelial venules (HEVs) in human tonsil and on a subset of human leukocytes, suggesting that JAM-2 plays a central role in the regulation of transendothelial migration. It binds to very late activation antigen (VLA)-4, a leucocyte integrin that contributes to rolling and firm adhesion of lymphocytes to endothelial cells through binding to vascular cell adhesion molecule (VCAM)-1. JAM-B appears to contribute to leucocyte extravasation by facilitating not only transmigration but also rolling and adhesion. JAM-B acts as an adhesive ligand for interacting with a variety of immune cell types and may play a role in lymphocyte homing to secondary lymphoid organs. |
| Reference |