Stemfactor™ LIF, Human Recombinant

重組人白(bái)血病抑制因子LIF

産品關鍵詞：

naïve stem cells 初始幹細胞；neural progenitor cells 神經祖細胞；WH-4-023；CHIR99021；Stemfactor™Activin A；

産品描述：

Stemfactor™ LIF是一(yī)種淋巴因子（lymphoid factor），通(tōng)過抑制自(zì)發分化來促進胚胎幹細胞多(duō)潛能(néng)性的長(cháng)期維持。淋巴細胞抑制因子（Leukemia Inhibitory Factor, LIF）還(hái)具有其他功能(néng)，比如膽堿能(néng)神經元分化，骨和脂肪代謝，某些因子依賴細胞系的有絲分裂發生(shēng)，和促進體内巨核細胞的産生(shēng)。人LIF分子量約20kDa，含202個(gè)氨基酸殘基，對人和小(xiǎo)鼠細胞都有活性。

Stemgent公司提供支持初始潛能(néng)幹細胞應用需要的5i/L/A培養基添加劑（5i/L/A media supplment）所有成分，如下(xià)：

産品特性

1. 來源：E.Coli

2. 配方：LIF is supplied as a 0.22 µm sterile filtered liquid in PBS containing 1% w/v BSA as carrier.

3. 氨基酸序列：GLECDGKVNI CCKKQFFVSF KDIGWNDWII APSGYHANYC EGECPSHIAG TSGSSLSFHS TVINHYRMRG HSPFANLKSC CVPTKLRPMS MLYYDDGQNI IKKDIQNMIV EECGCS

4. Uniprot序列号：P08476, residues 311-426

5. 純度：＞99%（SDS-PAGE）

6. 内毒素水(shuǐ)平：Less than 1.0 EU/μg of Activin A as determined by the LAL method.

7. 生(shēng)物(wù)活性：Human LIF activity is assessed by its ability to induce differentiation of M1 myeloid leukemia cells. The specific activity is 1 x 106 units/ml (Cat. No. 03-0016) and 1 x 107 units/ml (Cat. No. 03-0016-100), where 50 units is defined as the amount of human LIF required to induce differentiation in 50% of the M1 colonies in 1 ml of medium.

8. 保存和穩定性：Store LIF at 4°C. Do not freeze. Stable for up to 6 months from date of receipt, when stored as directed.

訂購信息：原裝正品，歡迎訂購，聯系電(diàn)話：021-54736159，QQ：2971634497。

引用文獻：

Metcalf D. (2003) The unsolved enigmas of leukemia inhibitory factor. Stem Cells 21: 5-14.

訂購信息：

電(diàn)話：021-54736159

QQ：2971634497

郵箱：sales@maokangbio.com

上海夢澤生物科技有限公司

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