货号 | AF4969-SP |
别名 | brain-specific angiogenesis inhibitor 1; FLJ41988; GDAIF | 全称 | Brain-specific Angiogenesis Inhibitor 1 |
反应种属 | Human |
应用 | Neutralization |
目标/特异性 | Detects human BAI1 in direct ELISAs. In direct ELISAs, less than 2% cross-reactivity with recombinant human BAI3 is observed. |
使用方法 | Neutralization: Measured by its ability to neutralize the the enhancemment of adhesion of BCE C/D1b bovine cornea derived endothelial cells induced by BAI-1. The Neutralization Dose (ND50) is typically 2-8 µg/mL in the presence of 0.5 µg/mL Recombinant Human BAI-1. |
来源 | Polyclonal Sheep IgG |
产品组分 |
供应商 | R&D Systems |
Entrez Gene IDs | 575 (Human); 107831 (Mouse); 362931 (Rat) |
纯化方式 | Antigen Affinity-purified |
免疫原 | Chinese hamster ovary cell line CHO-derived recombinant human BAI1 Ala31-Thr879 Accession # O14514 |
内毒素水平 | <0.10 EU per 1 μg of the antibody by the LAL method. |
生物活性 | Human |
标记 | Unconjugated |
溶解方法 | Reconstitute at 0.2 mg/mL in sterile PBS. |
背景 | Brain Angiogenesis Inhibitor 1 (BAI1) is a 170 kDa 7-transmembrane domain G protein-coupled receptor (GPCR) that has a large N-terminal extracellular region with an RGD motif, five thrombospondin type I repeats, and a juxtamembrane GPS (GPCR proteolytic cleavage site) (1). Within the extracellular domain (ECD) up to the GPS (amino acids 31‑879), mature human BAI1 shares 94% amino acid sequence identity with mouse and rat BAI1. BAI1 is preferentially expressed on brain neurons but also is found on astrocytes and macrophages and in the pancreas, stomach, and colon (1‑8). BAI1 can be cleaved within the GPS to release a 120 kDa fragment termed Vasculostatin which corresponds to nearly the entire N-terminal ECD (9). Generation of additional soluble fragments suggests the cleavage of BAI1 at multiple sites (9, 10). BAI1 fragments interact with Integrin alpha V beta 5 or CD36 on microvascular endothelial cells to inhibit cell proliferation and migration (10, 11). Overexpression of BAI1 in glioblastoma or pancreatic adenocarcinoma cells inhibits their tumorigenicity and the development of tumor-associated neovascularization (6, 12). Fragments of the ECD, including Vasculostatin, also suppress in vivo angiogenesis and tumor growth (1, 9, 11). BAI1 is down‑regulated in glioblastoma, carcinomas of the pancreas, colon, and stomach and also in experimental ischemia (2, 4, 6‑8). Its expression is inversely correlated with tumor vascularity in colorectal and pulmonary carcinomas (8, 13). On macrophages and astrocytes, BAI1 mediates the phagocytosis of apoptotic cells through recognition of cell surface phosphatidylserine (5). |
运输条件 | Blue Ice |
存放说明 | 4℃ |
参考文献 |
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