| 货号 | AB-255-NA |
| 别名 | c-kit Ligand; DKFZp686F2250; familial progressive hyperpigmentation 2; FPH2; KIT ligand; Kitl; KITLG; KL-1; Mast cell growth factor; MGF; MGFSHEP7; SCFStem cell factor; SFc-Kit ligand; SLF; steel factor | 全称 | Stem Cell Factor |
| 反应种属 | Human |
| 应用 | Western Blot(1 µg/mL) |
| 目标/特异性 | Detects human SCF/c‑kit Ligand in direct ELISAs and Western blots. In direct ELISA, approximately 45% cross‑reactivity with recombinant mouse SCF is observed, approximately 30% cross-reactivity with recombinant canine SCF, recombinant rat SCF, and recombinant feline SCF is observed. It will also neutralize the biological activity of recombinant mouse SCF at a 10 fold higher IgG concentration. |
| 使用方法 | Western Blot: 1 µg/mL Neutralization: Measured by its ability to neutralize SCF/c‑kit Ligand-induced proliferation in the TF‑1 human erythroleukemic cell line. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The Neutralization Dose (ND50) is typically 0.4-2 µg/mL in the presence of 10 ng/mL Recombinant Human SCF/c‑kit Ligand. |
| 来源 | Polyclonal Goat IgG |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 4254 (Human); 17311 (Mouse); 60427 (Rat); 403507 (Canine); 493937 (Feline) |
| 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. Human peripheral blood eosinophils express stem cell factor. | |
| 纯化方式 | Protein A or G purified |
| 免疫原 | E. coli-derived recombinant human SCF/c‑kit Glu26-Ala189 Accession # P21583 |
| 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 1 mg/mL in sterile PBS. |
| 背景 | Stem cell factor (SCF), also known as c-kit ligand (KL), mast cell growth factor (MGF), and steel factor (SLF), is a widely expressed 28‑40 kDa type I transmembrane glycoprotein (1). It promotes the survival, differentiation, and mobilization of multiple cell types including myeloid, erythroid, megakaryocytic, lymphoid, germ cell, and melanocyte progenitors (1‑7). SCF is a primary growth and activation factor for mast cells and eosinophils (8). Mature human SCF consists of a 189 amino acid (aa) extracellular domain (ECD), a 23 aa transmembrane segment, and a 36 aa cytoplasmic tail (9). The ECD shows both N-linked and O-linked glycosylation (10). Proteolytic cleavage at two alternate sites in the extracellular juxtamembrane region releases a 25 kDa soluble molecule which is comparable to the only form produced by Steel-dickie mutant mice (11, 12). An alternately spliced isoform of human SCF lacks 28 aa that encompasses the primary proteolytic recognition site (13). Within the ECD of the short isoform (corresponding to this recombinant protein), human SCF shares 75%‑83% aa sequence identity with canine, feline, mouse, and rat SCF. Rat SCF is active on mouse and human cells, but human SCF is only weakly active on mouse cells (9). Noncovalent dimers of transmembrane or soluble SCF interact with the receptor tyrosine kinase SCF R/c-kit to trigger receptor dimerization and signaling (14). SCF assists in the recovery of cardiac function following myocardial infarction by increasing the number of cardiomyocytes and vascular channels (15). |
| 运输条件 | Blue Ice |
| 存放说明 | -20℃ |
| 参考文献 |
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Cell Proliferation Induced by SCF/c‑kit Ligand and Neutralization by Human SCF/c‑kit Ligand Antibody. Recombinant Human SCF/c‑kit Ligand (Catalog # 255‑SC) stimulates proliferation in the TF‑1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human SCF/c‑kit Ligand (10 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human SCF/c-kit Ligand Polyclonal Antibody (Catalog # AB-255-NA). The ND50 is typically 0.4-2 µg/mL. |
