CNTF, Human, Recombinant
英文名稱：CNTF, Human, Recombinant
貨號： PCK117
價格： ￥880 ￥2780 ￥11880 ￥17280
產(chǎn)品信息
| 產(chǎn)品形態(tài) | 粉末 |
| 產(chǎn)品規(guī)格 | 10μg / 50μg / 500μg / 1mg |
| 別名 | Ciliary Neurotrophic Factor;CNTF |
| 物種 | 人 |
| 表達(dá)宿主 | E.coli |
| 序列信息 | Ala2-Met200 |
| 檢索號 | P26441 |
| 分子量 | 22.93 kDa |
| 表觀分子量 | 25 kDa |
| 純度 | > 95% as determined by reducing SDS-PAGE. |
| 內(nèi)毒素 | < 1.0 EU per 1 μg as determined by LAL test. |
| 儲存條件 | Lyophilized protein should be stored at -5~-20℃, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at -5~-20℃ for 3 months. |
| 運輸條件 | Ambient temperature or ice pack. |
| 有效期 | 12個月 |
| 制劑 | Lyophilized from a 0.2 μm filtered solution of 20 mM Tris-HCl, 100 mM NaCl, pH 8.0. |
| 復(fù)融 | Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in sterile water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
| 背景介紹 | Ciliary Neurotrophic Factor (CNTF) is a potent survival factor for neurons and oligodendrocytes. CNTF has also been shown to prevent the degeneration of motor axons after axotomy. CNTF is highly conserved across species and exhibits cross-species activities. Human and rat CNTF share approximately 83% homology in their Protein sequence. CNTF is structurally related to IL6, IL11, LIF and OSM. All of these four helix bundle Cytokines share gp130 as a signal transducing subunit in their Receptor complexes. CNTF, like FGF acidic, FGF basic, and PD-ECGF (platelet-Derived endothelial cell Growth Factor), does not possess a signal sequence that would allow secretion of the factor by classical secretion pathways. The mechanism underlying the release of CNTF is unknown. |
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Q1:官網(wǎng)的因子都是不含動物成分的么？
我們公司的因子都是重組的，是不含動物源成分的。
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Q2:細(xì)胞因子用無菌水配成了100ug/mL母液，用于實驗時，需要的終濃度為10ng/mL，可以用培養(yǎng)基直接稀釋？還是需要通過PBS（含5%海藻糖）進一步稀釋才行呢？
如果是直接做實驗，可以直接添加培養(yǎng)基進行稀釋配置。 如果是需要長時間保存的話，需要使用含載體蛋白(如0.1%BSA，10% FBS，5%HSA或5%海藻糖)的溶液進一步釋后分裝保存于-5~-20℃或者-80℃冰箱
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Q3:細(xì)胞因子加無菌水溶解后需要再次離心嗎？
加了無菌水后，如果沒有掛壁現(xiàn)象是不用離心的，如果您放置了一段時間，再次使用時是可以使用離心機離心的
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Q4:細(xì)胞因子離心前需要放置室溫嗎？
不用提前放置室溫.
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Q5:收到細(xì)胞因子產(chǎn)品用什么溶劑復(fù)融？
1、細(xì)胞因子產(chǎn)品大部分為凍干形式發(fā)貨，少部分液體形式發(fā)貨； 2、凍干粉狀態(tài)的因子產(chǎn)品需指定溶劑復(fù)溶，請參考產(chǎn)品說明書【復(fù)融】方法，按照要求使用對應(yīng)溶劑溶解，大部分因子為無菌水復(fù)融，少部分需要無菌水以外的特殊溶劑溶解的產(chǎn)品則隨貨會贈送相應(yīng)的復(fù)融試劑；凍干粉溶解后如您需要進一步稀釋分裝，需使用含載體蛋白(如0.1% BSA，10%FBS，5%HSA 或 5% 海藻糖)的溶液進一步稀釋后分裝冷凍保存。 3、液體形式因子產(chǎn)品不需要復(fù)溶，具體濃度詳見產(chǎn)品標(biāo)簽，按照實驗需要用含載體蛋白(如0.1% BSA，10%FBS，5%HSA 或 5% 海藻糖)的溶液進一步稀釋后分裝冷凍保存即可；
識別碼示意圖
