Recombinant Human CD134/TNFRSF4 Protein, His Tag

TNFRSF4

P43489

< 1.0 EU per ug of the protein as determined by the LAL method.

Protein A/G

OX4L, a member of the TNF superfamily of structurally related proteins, exists primarily as a type II membrane bound, non-covalently linked homotrimeric protein. It is expressed on antigen presenting cells (APCs), such as dendritic cells and activated B-cells, and also on various other cells such as vascular endothelial cells, mast cells, and natural killer cells. OX4L signals specifically through the OX4 receptor, which is expressed predominantly on CD4+T cells but also on certain activated CD8+T cells. OX4/OX4L functions as a costimulatory signal, which is required for a productive interaction between antigen presenting cells and their target T-cells. It enhances cell proliferation and survival, and increases expression of RANTES, IL-2, IL-3, and IFN&gamma.

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