3X FLAG Peptide
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
FLAG标签是将亲水性的8个氨基酸与目的蛋白进行融合。FLAG标签可以与抗体M1结合。3× FLAG标签系统大幅度提高了FLAG标签的检测能力。三串联的FLAG表位是亲水性的,22个氨基酸的长链,它最多可以检测10 fmol的融合蛋白。FLAG标记的Pyrococcus furiosus的麦芽糊精结合蛋白已经获得了晶体,晶体结果显示FLAG标签对蛋白晶体质量没有多大影响。
FLAG标签可以用肠激酶法处理去除,肠激酶能够特异性的作用于C端的5个氨基酸多肽序列。
参考文献:
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Storage | Desiccate at -20°C |
M.Wt | 2861.87 |
Cas No. | 402750-12-3 |
Formula | C120H169N31O49S |
Synonyms | H-Met-Asp-Tyr-Lys-Asp-His-Asp-Gly-Asp-Tyr-Lys-Asp-His-Asp-Ile-Asp-Tyr-Lys-Asp-Asp-Asp-Asp-Lys-OH |
Solubility | ≥25 mg/mL in TBS (0.5 M Tris-HCl, pH 7.4, with 1 M NaCl), 1X TBS as recommended buffer. |
Chemical Name | 3X FLAG Peptide |
SDF | Download SDF |
Canonical SMILES | CCC(C)C(C(=O)NC(CC(=O)O)C(=O)NC(CC1=CC=C(C=C1)O)C(=O)NC(CCCCN)C(=O)NC(CC(=O)O)C(=O)NC(CC(=O)O)C(=O)NC(CC(=O)O)C(=O)NC(CC(=O)O)C(=O)NC(CCCCN)C(=O)O)NC(=O)C(CC(=O)O)NC(=O)C(CC2=CNC=N2)NC(=O)C(CC(=O)O)NC(=O)C(CCCCN)NC(=O)C(CC3=CC=C(C=C3)O)NC(=O)C(CC(=O)O)NC( |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |
ELISA实验[1]: | |
溶解方法 |
该多肽在无菌水中的溶解度>10 mM,原液应分装并储存在-80°C,可储存几个月。 |
应用 |
3-Flag peptide被广泛用作一种温和的纯化试剂,用于Flag表位标记重组蛋白的纯化。尽管在缺乏钙离子时,其亲和柱会释放单价标记蛋白,但是抗体仍保留对Flag序列的亲和性,即使在无金属存在的条件下,因此不能用来进行金属敏感的ELISA实验。当Flag标记蛋白结合在ELISA板或印迹过滤器上时,抗体仍然与多价表面包被抗原结合。抗原多价性提高了Flag抗体的亲和性,使得ELISA反应不依赖于钙离子。然而,当抗体本身是单价的,即通过蛋白水解变成Fab,ELISA反应即变为钙依赖的。这种金属依赖的ELISA实验被用于研究抗体对金属的需求。在二价金属中,比钙半径大或比钙半径小的金属其结合均逐渐减少。几种更小的金属,比如镍,充当结合反应的抑制剂。重金属如镉、镧和钐可以与抗体结合。由于对该抗体与重组Flag融合蛋白共结晶的兴趣,其与重金属结合的能力就变得非常有意义。 |
References: 1. Hopp TP1, Gallis B, Prickett KS. Metal-binding properties of a calcium-dependent monoclonal antibody. Mol Immunol. 1996 May-Jun;33(7-8):601-8. |
描述 | 3X FLAG Peptide是一个合成的含有三个重复DYKXXD氨基酸序列的多肽。 | |||||
靶点 | anti-flag M2 antibody | |||||
IC50 |
质量控制和MSDS
- 批次: