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M-CSF/CSF1 Protein, Mouse, Recombinant

产品编号 TMPY-00464
M-CSF/CSF1 Protein, Mouse, Recombinant is expressed in HEK293 mammalian cells. The predicted molecular weight is 26 kDa and the accession number is P07141-1.
规格价格库存数量
20 μg
¥ 1,750
现货
100 μg
¥ 4,930
现货
200 μg
¥ 9,270
5日内发货
500 μg
¥ 21,270
5日内发货
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实验操作小课堂
M-CSF/CSF1 Protein, Mouse, Recombinant产品问题解答
请问 M-CSF/CSF1 Protein, Mouse, Recombinant 应怎么溶解?
浓度高于100 μg/mL:在这种情况下,直接使用无菌水溶解蛋白通常是可以的,但为了长期储存,添加稳定剂是有益的。添加甘油:向蛋白溶液中添加20%的甘油可以作为一种冷冻保护剂,有助于防止冰晶形成对蛋白结构造成的损害,尤其是在低温冷冻条件下。甘油还可以帮助维持蛋白的构象,减少蛋白质变性。分装:将蛋白溶液分装到小体积中,避免反复冻融,因为反复冻融会加速蛋白的降解和失活。<br/>储存条件:分装后的蛋白溶液应储存在-20℃或-80℃,具体取决于蛋白的稳定性。对于一些特别敏感的蛋白,-80℃可能是更佳的选择。当需要使用稀释的蛋白溶液时,可以根据实验需求选择不同的溶剂。无菌水、PBS(磷酸盐缓冲液)和细胞培养基都是常见的选择。
常见问题解答
重组蛋白产品是如何运输的?
大部分重组蛋白产品为冻⼲粉,对温度不敏感,在室温下稳定,一般室温或蓝冰运输。对于液体类蛋白,一般采用⼲冰运输。如果您收到产品时发现冰盒已经融化,无需担心,蛋白可以正常使用,短时间内不会影响产品质量。如果特定蛋白在室温下不稳定,我们会提供相应的低温运输方式,以确保产品质量不受影响。
如何将冻干的重组蛋白配置为储备液?
在打开盖⼦之前,先使用 10000-12000 rpm 的转速进行离心,20-30 秒,将附着在管盖或管壁上的冻⼲粉收集到管底,以避免损失。大多数蛋白可通过加入无菌蒸馏水来重新溶解。如果需要除水以外的其他稀释剂,产品 COA 中会对其进行说明。一般储备液浓度建议不要低于 100 μg/mL,分装储存避免反复冻融。
为什么某些重组蛋白溶液中还需要添加载体蛋白?
载体蛋白通常被用于提高蛋白的稳定性,防止蛋白在冷冻或解冻过程中粘附在管壁上。塑料管对蛋白有一定的吸附能力,这可能导致蛋白和管壁之间难以分离,导致溶液中蛋白的实际浓度下降,从而影响其活性。为减少这种损失,在长期保存重组蛋白 产品之前,建议添加常用的载体蛋白溶液,例如0.1% BSA(牛血清白蛋白)、5% HSA(人血清白蛋白)、10% FBS(胎牛血清)或 5% 海藻糖等。如果重组蛋白的浓度较低,强烈建议添加适量的载体蛋白。
为什么重组蛋白的体积和质量与预期不符?
蛋白冻干粉由蛋白原液冻干而来,冻干粉质量不等同于蛋白质量。由于冻⼲产品的体积大⼩受多种因素影响,包括冻⼲前缓冲液的组分、盐离⼦浓度以及产品本身的浓度等。冻⼲粉可能看上去很多,也可能肉眼不易观察到,这些都是正常现象,请您放心使用。在收到产品后,照常复溶、使用或分装储存即可。
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产品信息

生物活性
1. Immobilized mouse CSF1 at 2 μg/ml (100 μl/well) can bind mouse CSF1R-Fch , The EC50 of mouse CSF1R-Fch is 60-220 ng/mL. 2. Measured in a cell proliferation assay using M-NFS-60 mouse myelogenous leukemia lymphoblast cells. The ED50 for this effect is typically 3-15 ng/mL.
M-CSF/CSF1 Protein, Mouse, RecombinantM-CSF/CSF1 Protein, Mouse, Recombinant
产品描述
M-CSF/CSF1 Protein, Mouse, Recombinant is expressed in HEK293 mammalian cells. The predicted molecular weight is 26 kDa and the accession number is P07141-1.
种属
Mouse
表达系统
HEK293 Cells
标签Tag Free
蛋白编号P07141-1
别名
集落刺激因子,op,MCSF,Csfm,colony stimulating factor 1 (macrophage),C87615
蛋白构建
A DNA sequence encoding the mouse CSF1 (P07141-1) (Met1-Glu262) was expressed. Predicted N terminal: Lys 33
蛋白纯度
> 95 % as determined by SDS-PAGE
M-CSF/CSF1 Protein, Mouse, Recombinant
分子量26 kDa (predicted); 45 kDa (reducing condition, due to glycosylation)
内毒素< 1.0 EU/μg of the protein as determined by the LAL method.
缓冲液Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
复溶方法
A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
存储
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式In general, Lyophilized powders are shipping with blue ice.
研究背景
Macrophage colony-stimulating factor 1, also known as CSF-1, M-CSF, Lanimostim and CSF1, is a single-pass membrane protein which is disulfide-linked as a homodimer or heterodimer. Granulocyte / macrophage colony-stimulating factors are cytokines that act in hematopoiesis by controlling the production, differentiation, and function of 2 related white cell populations of the blood, the granulocytes and the monocytes-macrophages. M-CSF/CSF-1 is known to facilitate monocyte survival, monocyte-to-macrophage conversion, and macrophage proliferation. M-CSF/CSF-1 is a secreted cytokine which influences hemopoietic stem cells to differentiate into macrophages or other related cell types. It binds to the Colony stimulating factor 1 receptor. M-CSF/CSF-1 may also be involved in development of the placenta. The active form of M-CSF/CSF-1 is found extracellularly as a disulfide-linked homodimer, and is thought to be produced by proteolytic cleavage of membrane-bound precursors. M-CSF/CSF-1 induces cells of the monocyte/macrophage lineage. It also plays a role in immunological defenses, bone metabolism, lipoproteins clearance, fertility and pregnancy. Upregulation of M-CSF/CSF-1 in the infarcted myocardium may have an active role in healing not only through its effects on cells of monocyte/macrophage lineage, but also by regulating endothelial cell chemokine expression.

参考文献

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计算器

  • 复溶 计算器
  • 重组蛋白稀释 计算器
  • 比活力 计算器

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