產品詳情
簡單介紹：
重組人巨噬細胞集落刺激因子蛋白與其它公司提供的重組蛋白不同，rHuM-CSF蛋白產品為采用CFS的無細胞麥胚蛋白合成系統表達出來的重組蛋白，可表達出對細胞有毒性、易被蛋白酶降解的蛋白；并獲得具有良好的可溶性，并有翻譯后修飾、從而部分具有功能的蛋白.同時獨有的全自動蛋白純化技術則簡便高效，將蛋白純化過程中對蛋白的損傷降低到*小程度.重組人巨噬細胞集落刺激因子蛋白（全長序列）產品可用于Western Blot驗證、抗體制備、蛋白檢測、ELISA等試驗中.
詳情介紹：
重組人巨噬細胞集落刺激因子蛋白
| Synonyms | CSF-1, MGI-IM |
| Species | Human |
| Accession | P09603-3 |
| GeneID | 1435 |
| Source | Escherichia coli. |
| Molecular Weight | 重組人巨噬細胞集落刺激因子蛋白Approximately 36.8 kDa, a disulfide-linked homodimer consisting of two 158 amino acid polypeptide chains. |
| Quantity | 2μg/10μg/1000μg |
| AA Sequence | EEVSEYCSHM IGSGHLQSLQ RLIDSQMETS CQITFEFVDQ EQLKDPVCYL KKAFLLVQDI MEDTMRFRDN TPNAIAIVQL QELSLRLKSC FTKDYEEHDK ACVRTFYETP LQLLEKVKNV FNETKNLLDK DWNIFSKNCN NSFAECSSQG HERQSEGS |
| Purity | > 95 % by SDS-PAGE and HPLC analyses. |
| Biological Activity | 重組人巨噬細胞集落刺激因子蛋白Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine M-NFS-60 cells is less than 1 ng/ml, corresponding to a specific activity of > 1.0 × 106 IU/mg. |
| Physical Appearance | Sterile Filtered White lyophilized (freeze-dried) powder. |
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS, pH7.4. |
| Endotoxin | Less than 1 EU/μg of rHuM-CSF as determined by LAL method. |
| Reconstitution | 重組人巨噬細胞集落刺激因子蛋白We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water to a concentration of 0.1 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions. |
| Storage | This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles. |
| 重組人巨噬細胞集落刺激因子蛋白 | |
| Reference |
1. Cosman D, Wignall J, Anderson D, et al. 1988. Behring Inst Mitt: 15-26. 2. Metcalf D, Willson T, Rossner M, et al. 1994. Growth Factors, 11: 145-52. 3. Hidaka T, Fujimura M, Nakashima A, et al. 2002. Jpn J Cancer Res, 93: 426-35. 4. Kubota Y, Takubo K, Shimizu T, et al. 2009. J Exp Med, 206: 1089-102. |
| Background | Macrophage Colony Stimulating Factor (M-CSF), also named CSF-1, is a hematopoietic growth factor that is involved in the proliferation, differentiation, and survival of monocytes, macrophages, and bone marrow progenitor cells. It is produced by osteoblasts (as a result of endocrine stimulation by parathyroid hormone) exerts paracrine effects on osteoclasts and can interact with CSF1R. M-CSF is a four α-helical bundle cytokine and its active form is found extracellularly as a disulfide-linked homodimer. Four transcript variants encoding three different isoforms have been reported for M-CSF gene. Although forms may vary, all of them contain the N-terminal 150 a.a. portion that is necessary and sufficient for interaction with the receptor. The first 223 a.a. of mature human M-CSF shares 88 %, 86 %, 81 % and 74 % sequence identity with corresponding regions of dog, cow, mouse and rat M-CSF, respectively. Human M-CSF is active in the mouse, but mouse M-CSF is reported to be species-specific. |
