Description
Key facts
Purity:>95% HPLC,
Endotoxin level:<0.005 EU/µg,
Expression system:HEK 293 cells,
Tags:His tag C-Terminus,
Applications:SDS-PAGE, FuncS, HPLCSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:Yes,
Biological activity:Loaded Human OX40, Human Fc Tag on Protein A Biosensor can bind Human OX40L receptor/CD134, His Tag with an affinity constant of 3.9 uM as determined in BLI assay (GatorBio Prime).,
Accession:P43489,
Animal free:Yes,
Carrier free:No,
Species:Human,
Reconstitution:Reconstitute in PBS,
Storage buffer:pH: 7.4Constituents: 10.26% Trehalose, 0.727% Dibasic monohydrogen potassium phosphate, 0.248% Potassium phosphate monobasic
Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-Ambient, Appropriate long-term storage conditions-Ambient
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
CD134 also known as OX40 or TNFRSF4 is a receptor that plays an essential role in immune response regulation. This receptor is part of the tumor necrosis factor receptor (TNFR) superfamily and has a molecular mass of approximately 50 kDa. CD134 is expressed on activated T cells particularly CD4+ T cells and is present on various other immune cells under specific conditions. The receptor binds to the OX40L its ligand which is expressed on antigen-presenting cells such as dendritic cells and B cells.
Biological function summary
CD134 influences T cell proliferation survival and memory formation being an important component of the immune system's adaptive response. OX40L engagement with CD134 enhances the activation and survival of T cells promoting long-term immunity. This interaction does not form part of a larger complex but functions as a direct signaling mechanism that augments T cell receptor (TCR) signaling leading to increased cytokine production and sustained immune responses essential for controlling infections and cancer.
Pathways
CD134 signaling intersects with the nuclear factor-kappa B (NF-κB) and phosphoinositide 3-kinase (PI3K) pathways. These pathways play significant roles in regulating immune responses and cell survival. Through the NF-κB pathway CD134 influences gene transcription related to immune activation. It also connects with other immune regulatory proteins such as CD28 which further potentiates T cell responses and enhances effector functions.
CD134 has connections to autoimmune diseases and cancers. Overactivity of the CD134-OX40L pathway can lead to exacerbated autoimmune conditions such as lupus. This receptor has also been implicated in tumor immunity where its activation enhances the anti-tumor response of T cells. CD134 interacts with CTLA-4 another immune checkpoint protein playing a role in balancing immune activation and regulation within these disease contexts.
