| 货号 | MAB1086-SP |
| 别名 | CD279 antigen; CD279; hPD-1; PD1hPD-l; PDCD1; programmed cell death 1; programmed cell death protein 1; Protein PD-1; SLEB2 | 全称 | Programmed Death-1 |
| 反应种属 | Human |
| 应用 | Western Blot |
| 目标/特异性 | Detects human PD-1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) CD28, rhCTLA4, rhICOS, or recombinant mouse PD-1 is observed. |
| 使用方法 | Western Blot: 1 µg/mL |
| 来源 | Reconstitute at 0.5 mg/mL in sterile PBS. |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 5133 (Human); 18566 (Mouse); 102123659 (Cynomolgus Monkey) |
| 应用文献 | |
| R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions. Soluble co-signaling molecules predict long-term graft outcome in kidney-transplanted patients. | |
| 纯化方式 | Protein A or G purified from hybridoma culture supernatant |
| 免疫原 | Mouse myeloma cell line NS0-derived recombinant human PD-1 Leu25-Gln167 Accession # Q8IX89 |
| 生物活性 | Human |
| 标记 | Unconjugated |
| 溶解方法 | Reconstitute at 0.5 mg/mL in sterile PBS. |
| 背景 | Programmed Death-1 (PD-1) is a type I transmembrane protein belonging to the CD28/CTLA-4 family of immunoreceptors that mediate signals for regulating immune responses (1). Members of the CD28/CTLA-4 family have been shown to either promote T cell activation (CD28 and ICOS) or downregulate T cell activation (CTLA-4 and PD-1) (2). PD-1 is expressed on activated T cells, B cells, myeloid cells, and on a subset of thymocytes. In vitro, ligation of PD-1 inhibits TCR-mediated T cell proliferation and production of IL-1, IL-4, IL-10, and IFN-gamma. In addition, PD-1 ligation also inhibits BCR mediated signaling. PD-1 deficient mice have a defect in peripheral tolerance and spontaneously develop autoimmune diseases (2, 3). Two B7 family proteins, PD-L1 (also called B7-H1) and PD-L2 (also known as B7-DC), have been identified as PD-1 ligands. Unlike other B7 family proteins, both PD‑L1 and PD‑L2 are expressed in a wide variety of normal tissues including heart, placenta, and activated spleens (4). The wide expression of PD-L1 and PD-L2 and the inhibitor effects on PD-1 ligation indicate that PD-1 might be involved in the regulation of peripheral tolerance and may help prevent autoimmune diseases (2). The human PD-1 gene encodes a 288 amino acid (aa) protein with a putative 20 aa signal peptide, a 148 aa extracellular region with one immunoglobulin-like V‑type domain, a 24 aa transmembrane domain, and a 95 aa cytoplasmic region. The cytoplasmic tail contains two tyrosine residues that form the immunoreceptor tyrosine-based inhibitory motif (ITIM) and immunoreceptor tyrosine-based switch motif (ITSM) that are important in mediating PD-1 signaling. Mouse and human PD-1 share approximately 60% aa sequence identity (4). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Detection of Human PD‑1 by Western Blot. Western blot shows lysates of human peripheral blood mononuclear cells (PBMC) untreated (-) or treated (+) with 1 µg/mL PHA for 5 days. PVDF Membrane was probed with 1 µg/mL of Human PD‑1 Monoclonal Antibody (Catalog # MAB1086) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for PD‑1 at approximately 33 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1. |
