货号 | MAB9641-SP |
别名 | AGP4; ANG3; ANG-3; ANG-4; ANG4angiopoietin-3; angiopoietin 4; Angiopoietin-3; angiopoietin-4; ANGPT4; dJ824F16.2 (angiopoietin 4); MGC138181; MGC138183 |
反应种属 | Human |
应用 | ELISA Capture (Matched Antibody Pair),ELISA Detection (Matched Antibody Pair),ELISA Standard |
目标/特异性 | Detects human Angiopoietin-4 in ELISAs. In sandwich immunoassays, no cross-reactivity or interference with recombinant human (rh) Angiopoietin-1, -2, rhAngiopoietin-like 3, rhAngiopoietin-like 4, rhTie-2, or recombinant mouse Angiopoietin-3 was observed. |
使用方法 | ELISA Capture (Matched Antibody Pair): 2-8 µg/mL ELISA Detection (Matched Antibody Pair): 0.1-0.4 µg/mL ELISA Standard : |
来源 | Sterile PBS to a final concentration of 0.5 mg/mL. |
产品组分 |
供应商 | R&D Systems |
Entrez Gene IDs | 51378 (Human) |
纯化方式 | Protein A or G purified from hybridoma culture supernatant |
免疫原 | Mouse myeloma cell line NS0-derived recombinant human Angiopoietin-4 Met1-Ile503 Accession # Q9Y264 |
生物活性 | Human |
标记 | Unconjugated |
溶解方法 | Sterile PBS to a final concentration of 0.5 mg/mL. |
背景 | Human Angiopoietin-4 (Ang-4) (1), alternatively named Ang-3 (2), is a secreted glycoprotein belonging to the angiopoietin family. It has the characteristic structural motifs of angiopoietins including the coiled-coiled domain near the amino-terminus and a fibrinogen-like domain at the C-terminus. Human Ang-4 cDNA encodes a 503 amino acid (aa) precursor protein with a 23 aa signal peptide. It shares 45%, 47% and 54% aa sequence identity with human Ang-1, human Ang-2 and mouse Ang-3, respectively. Although the sequence homology is much higher between the human and mouse counterparts for Ang-1 (97%) and Ang-2 (85%), mouse Ang-3 is believed to be an ortholog of human Ang-4 based on chromosomal localization studies (2). Human Ang-4 is highly expressed in lung and in cultured human umbilical vein endothelial cells (HUVECs). In contrast, mouse Ang-3 is expressed multiple mouse tissues. Human Ang-4 is an agonist that can bind and activate Tie-2, a receptor tyrosine kinase with immunoglobulin and epidermal growth factor homology domains expressed primarily on endothelial cells and early hematopoietic cells (2, 3). Mouse Ang-3 has been reported to be a Tie-2 antagonist. It is likely that mouse Ang-3, like Ang-2, may exert agonist or antagonist activities depending on the cell context (1, 3, 4). |
运输条件 | Blue Ice |
存放说明 | 4℃ |
参考文献 |
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