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LAP (TGF-beta 1) Protein, Human, Recombinant (His & Avi), Biotinylated

产品编号 TMPJ-00250

Transforming growth factor beta (TGFβ) family members are secreted in inactive complexes with a latency-associated peptide (LAP), a protein derived from the N-terminal region of the TGFβ gene product. Extracellular activation of these complexes is a critical step in regulation of TGFβ function in vivo. The TGFβ1 LAP is a ligand for the integrin αvβ6 and that αvβ6-expressing cells induce spatially restricted activition of TGFβ1. And LAP identifies a novel CD4+/CD25+ regulatory T cell subset with TGFbeta-mediated function and enhanced suppression of experimental autoimmune encephalomyelitis.

LAP (TGF-beta 1) Protein, Human, Recombinant (His & Avi), Biotinylated

LAP (TGF-beta 1) Protein, Human, Recombinant (His & Avi), Biotinylated

产品编号 TMPJ-00250
Transforming growth factor beta (TGFβ) family members are secreted in inactive complexes with a latency-associated peptide (LAP), a protein derived from the N-terminal region of the TGFβ gene product. Extracellular activation of these complexes is a critical step in regulation of TGFβ function in vivo. The TGFβ1 LAP is a ligand for the integrin αvβ6 and that αvβ6-expressing cells induce spatially restricted activition of TGFβ1. And LAP identifies a novel CD4+/CD25+ regulatory T cell subset with TGFbeta-mediated function and enhanced suppression of experimental autoimmune encephalomyelitis.
规格价格库存数量
20 μg
¥ 2,260
5日内发货
100 μg
¥ 6,130
5日内发货
大包装 & 定制
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常见问题解答
准备进行动物实验,收到大包装粉末后,如何分装溶解?
根据配制出来的溶液是不是澄清的确定一次性能配多少:如果配制出来是澄清溶液,可以一次性多配制一些,储存于4度冰箱,大概一周配一次,放久了可能会失效;如果配制出来是混悬液,建议每次使用的时候都现配现用。
抑制剂是否可以高温灭菌?
大部分产品均通过化学方法合成,反应条件一般在 50-80℃ 之间,因此不建议使用高温灭菌法进行灭菌,建议用 0.22 μm 滤膜过滤灭菌。
动物实验常用溶解方法?
首先,您需要确认给药剂量、给药方式。对于具体的产品,优先找引用我们产品的文献里的使用方法,再找其他文献里的配方。 如果没有相关的文献,且该化合物的 DMSO 溶解度比较好,我们推荐通用配方: 10% DMSO+40% PEG300+5% Tween-80+45% Saline/PBS/ddH2O。溶剂依次加入,尽量溶解后再加入下一个溶剂。正常鼠建议 DMSO 浓度在 10% 以下,裸鼠体弱鼠等配方的 DMSO 浓度建议在 2% 以下,根据溶液是否澄清,助溶剂 PEG300、Tween-80 的比例可以适当调整。如果有其他助溶剂也可以使用。 以上配方仅供参考,体内配方并不是绝对的,需要根据不同情况进行调整。建议先取少量化合物测试配方,再进行大量配制。配完也可以再使用超声、加热等方式助溶,看看能不能澄清一点。 腹腔注射对粉末的溶解度要求比较高,建议购买盐形式化合物。如果给药剂量比较大,也有报道使用混悬液进行腹腔给药的。 对于灌胃给药,且剂量比较大的情况下,建议用 0.5% CMC-Na 配置成均匀混悬液进行给药。
购买多次产品,发现颜色不同,怎么办?
首先请您确认批次,如果是同一个批次产品,请联系技术同事核查产品颜色。如果是不同批次,请您放心,颜色不同可能是生产工艺不同而造成的,生产过程中的操作、温度、时间等因素可能会影响产品的颜色。如果您对该批次有疑虑,可在官网下载相应的质检报告,我们是对产品质量负责的。
抑制剂加 DMSO 配成母液之后,能否放在常温的环境保存1周?
不建议这么做,母液配置好分装保存,建议存于 -20℃ 或 -80℃,尽量避免反复冻融。如果您订购的规格很大,可以考虑分装粉末保存,固体粉末是比较稳定的,-20℃ 可以保存三年。
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产品信息

生物活性
Measured by its ability to inhibit TGF-beta 1 activity on TF‑1 human erythroleukemic cells. The ED50 for this effect is 3.37 ng/ml in the presence of 1ng/ml of recombinant human TGF-beta 1. (Regularly tested)
产品描述
Transforming growth factor beta (TGFβ) family members are secreted in inactive complexes with a latency-associated peptide (LAP), a protein derived from the N-terminal region of the TGFβ gene product. Extracellular activation of these complexes is a critical step in regulation of TGFβ function in vivo. The TGFβ1 LAP is a ligand for the integrin αvβ6 and that αvβ6-expressing cells induce spatially restricted activition of TGFβ1. And LAP identifies a novel CD4+/CD25+ regulatory T cell subset with TGFbeta-mediated function and enhanced suppression of experimental autoimmune encephalomyelitis.
种属
Human
表达系统
HEK293 Cells
标签N-6xHis-Avi
蛋白编号P01137
别名
transforming growth factor β1,transforming growth factor beta 1,TGFβ,TGFbeta,TGFB1,TGFB,LAP (TGF-β 1),LAP (TGFβ 1),LAP (TGF-beta 1),LAP (TGFbeta 1),LAP,DPD1,CED
氨基酸序列
Leu30-Arg278
蛋白构建
Leu30-Arg278 (Cys33Ser)
蛋白纯度
Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
分子量35-45 KDa (reducing condition)
内毒素< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
缓冲液Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4.
复溶方法
Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.
存储
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. Solutions are shipping with dry ice.
研究背景
Transforming growth factor beta (TGFβ) family members are secreted in inactive complexes with a latency-associated peptide (LAP), a protein derived from the N-terminal region of the TGFβ gene product. Extracellular activation of these complexes is a critical step in regulation of TGFβ function in vivo. The TGFβ1 LAP is a ligand for the integrin αvβ6 and that αvβ6-expressing cells induce spatially restricted activition of TGFβ1. And LAP identifies a novel CD4+/CD25+ regulatory T cell subset with TGFbeta-mediated function and enhanced suppression of experimental autoimmune encephalomyelitis.

SCI 文献

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