PBS, 1% BSA, 0.3% Proclin 300
12 months from date of receipt / reconstitution, 2 to 8 °C as supplied
| 应用 | 稀释度 | 推荐种属 |
|---|---|---|
| FCM | 1.25μl per million cells in 100μl volume | Hu |
Programmed cell death protein 1 (PD-1), also known as CD279, is a type I transmembrane protein belonging to the CD28 immunoglobulin superfamily. It is encoded by the Pdcd1 gene and consists of 288 amino acids, including an extracellular IgV-like domain, a transmembrane region, and a cytoplasmic tail. PD-1 is expressed on activated T cells, B cells, macrophages, dendritic cells, and natural killer cells. Its cytoplasmic domain contains two tyrosine residues that form an immunoreceptor tyrosine-based inhibitory motif (ITIM) and an immunoreceptor tyrosine-based switch motif (ITSM), which play key roles in inhibiting T cell receptor signaling. PD-1 interacts with its ligands PD-L1 and PD-L2 to negatively regulate immune responses, contributing to peripheral tolerance and preventing autoimmune diseases. However, this inhibitory function can also suppress anti-tumor immunity, making PD-1 a promising target for cancer immunotherapy.
Flow cytometric analysis of human peripheral blood lymphocytes were stained with stimulated 2 days with 5 μg/ml PHA (Right panel) or unstimulated (Left panel) was stained with Brilliant Violet 421™ Mouse Anti-Human CD3 and SDT Alexa Fluor® 647 Mouse Anti-Human CD279 (PD-1) Antibody at 1.25 μl/test. Flow cytometry and data analysis were performed using BD FACSymphony™ A1 and FlowJo™ software.
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