货号 | 产品名称 | 规格 | 库存 | 价格 | 数量 | 购买 |
---|---|---|---|---|---|---|
KR0077 | LIF, Human, Recombinant | 10ug |
+
-
|
|
分子量 | 19.7 kDa |
---|---|
表观分子量 | 18 kDa |
片段与标签 | Ser23-Phe202 |
生物活性 | Measured by the M1 cell differentiation assay.The ED50 for this effect is less than 0.8 ng/ ml |
物种 | Human |
表达宿主 | E.coli |
产品特性
纯度 | >95% as determined by reducing SDS-PAGE. |
---|---|
内毒素 | <1.0 EU per µg as determined by LAL test. |
保存 | Lyophilized Protein should be stored at < -20℃, though stable at room temperature for 3 weeks.<br/ >Reconstituted Protein solution can be stored at 4-7℃ for 2-7 days.<br/ >Aliquots of reconstituted samples are stable at < -20℃ for 3 months |
产品介绍
Leukemia Inhibitory Factor (LIF) is a lymphoid factor that promotes long-term maintenance of embryonic stem cells by suppressing spontaneous differentiation. LIF has a number of other activities including cholinergic neuron differentiation, control of stem cell pluripotency, bone and fat metabolism, mitogenesis of certain factor dependent cell lines and promotion of megakaryocyte production in vivo. Human and murine mature LIF exhibit a 78% sequence identity at the amino acid level. Human LIF is equally active on human and mouse cells. Murine LIF is approximately 1000 fold less active on human cells than human LIF.