性能供应商 | R&D Systems |
Entrez Gene IDs | 3685 (Human) |
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. Combination of RGD compound and low-dose paclitaxel induces apoptosis in human glioblastoma cells. Authors: Chang MW, Lo JM, Juan HF, Chang HY, Chuang CY PLoS ONE, 2012;7(5):e37935. Species: Human Sample Type: Whole Cells Application: Flow Osteopontin induces growth of metastatic tumors in a preclinical model of non-small lung cancer. Authors: Shojaei F, Scott N, Kang X, Lappin PB, Fitzgerald AA, Karlicek S, Simmons BH, Wu A, Lee JH, Bergqvist S, Kraynov E J. Exp. Clin. Cancer Res., 2012;31(0):26. Species: Human Sample Type: Whole Cells Application: Flow |
纯化方式 | Protein A or G purified from hybridoma culture supernatant |
免疫原 | Human osteoclasts |
生物活性 | Human |
标记 | Phycoerythrin |
背景 | Integrin alpha V beta 3, together with Integrin alpha IIb beta 3, constitute the only known beta 3 Integrins (1‑3). The non-covalent heterodimer of 170 kDa alpha V/CD51 and 93 kDa beta 3/CD61 subunits shows wide expression, notably by endothelial cells and osteoclasts (2‑4). Each subunit has a transmembrane sequence and a short cytoplasmic tail connected to the cytoskeleton. Active cell surface alpha V beta 3 adheres to matrix proteins including vitronectin, fibronectin, fibrinogen and thrombospondin (2, 3). The ligand binding site of alpha V beta 3 is in the N-terminal head region, formed by interaction of the beta 3 vWFA domain with the alpha V beta-propeller structure (4). The alpha V subunit contributes a thigh and a calf region, while the beta 3 subunit contains a PSI domain and four cysteine-rich I-EGF folds. The alpha V subunit domains termed thigh, calf-1 and calf-2 generate a “knee” region that is bent when the alpha V beta 3 is in its constitutively inactive state. Activation, either by “inside out” signaling or by Mg2+ or Mn2+ binding, extends the Integrin to expose its ligand binding site (1, 4). Two splice variants of beta 3 (b and c) diverge over the last 21 amino acids (aa) and lack cytoplasmic phosphorylation sites (5, 6). Another beta 3 splice variant diverges after the vWFA domain, producing a soluble 60 kDa form in platelets and endothelial cells (7). alpha V beta 3 is essential for the maturation of osteoclasts and their binding and resorption of bone; it also, however, promotes their apoptosis (8, 9). M-CSF R and alpha V beta 3 share signaling pathways during osteoclastogenesis, and deletion of either molecule causes osteopetrosis (8, 9). Also cell entry of several viruses is mediated by alpha V beta 3 (4, 10). The 962 aa human alpha V ECD (11) shares 92‑95% aa sequence identity with mouse, rat and cow alpha V while the 685 aa human beta 3 ECD (12) shares 95% aa identity with horse and dog, and 89‑92% aa identity with mouse, rat and pig beta 3. |
运输条件 | Blue Ice |
存放说明 | 4℃ |
参考文献 | - Hynes, R. O. (2002) Cell 110:673.
- Serini, G. et al. (2006) Exp. Cell Res. 312:651.
- Ross, F. P. and S. L. Teitelbaum (2005) Immunol. Rev. 208:88.
- Xiong, J. et al. (2001) Science 294:339.
- Kumar, C. S. et al. (1987) J. Biol. Chem. 272:16390.
- vanKuppevelt, H. et al. (1989) Proc. Natl. Acad. Sci. USA 86:5415.
- Djaffar, I. et al. (1994) Biochem. J. 300:67.
- McHugh, K. P. et al. (2000) J. Clin. Invest. 105:433.
- Faccio, R. et al. (2003) J. Clin. Invest. 111:749.
- Chu, J. J. and M. Ng (2004) J. Biol. Chem. 279:54533.
- Suzuki, S. et al. (1987) J. Biol. Chem. 262:14060.
- Fitzgerald, L. A. et al. (1987) J. Biol. Chem. 262:3936.
|