重组大鼠白细胞介素-13蛋白 rRtIL-13 上海康朗生物科技有限公司

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产品名称：重组大鼠白细胞介素-13蛋白
产品型号：rRtIL-13
产品展商：KALANG
产品文档：无相关文档
发布时间：2018-07-20
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简单介绍

重组大鼠白细胞介素-13蛋白与其它公司提供的重组蛋白不同，rRtIL-13蛋白产品为采用CFS的无细胞麦胚蛋白合成系统表达出来的重组蛋白，可表达出对细胞有毒性、易被蛋白酶降解的蛋白；并获得具有良好的可溶性，并有翻译后修饰、从而部分具有功能的蛋白.同时独有的全自动蛋白纯化技术则简便高效，将蛋白纯化过程中对蛋白的损伤降低到*小程度.重组大鼠白细胞介素-13蛋白（全长序列）产品可用于Western Blot验证、抗体制备、蛋白检测、ELISA等试验中.

产品描述

重组大鼠白细胞介素-13蛋白

Synonyms	T-cell Activation Protein P600
Species	Rat
Accession	P42203
GeneID	116553
Source	Escherichia coli.
Molecular Weight	重组大鼠白细胞介素-13蛋白Approximately 12.2 kDa, a single non-glycosylated polypeptide chain containing 111 amino acids.
Quantity	2µg/10µg/1000µg
AA Sequence	MPVRRSTSPP VALRELIEEL SNITQDQKTS LCNSSMVWSV DLTAGGFCAA LESLTNISSC NAIHRTQRIL NGLCNQKASD VASSPPDTKI EVAQFISKLL NYSKQLFRYG H
Purity	> 97 % by SDS-PAGE and HPLC analyses.
Biological Activity	重组大鼠白细胞介素-13蛋白Fully biologically active when compared to standard. The ED₅₀ as determined by a cell proliferation assay using human TF-1 cells is less than 4 ng/ml, corresponding to a specific activity of > 2.5 × 10⁵ IU/mg.
Physical Appearance	Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation	Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4.
Endotoxin	Less than 1 EU/μg of rRtIL-13 as determined by LAL method.
Reconstitution	重组大鼠白细胞介素-13蛋白We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage	This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
重组大鼠白细胞介素-13蛋白
Reference	1. Schmutz J, Martin J, Terry A, et al. 2004. Nature, 431: 268-74. 2. Wynn TA. 2003. Annu Rev Immunol, 21: 425-56. 3. Moy FJ, Diblasio E, Wilhelm J, et al. 2001. J Mol Biol, 310: 219-30. 4. Lakkis FG, Cruet EN, Nassar GM, et al. 1997. Biochem Biophys Res Commun, 235: 529-32.
Background	Interleukin-13 (IL-13) is expressed by the IL13 gene and secreted by many cell types, especially T helper type 2 (Th2) cells. The high solution from of IL-13 reported to be a monomer with two internal disulfide bonds that contribute to a bundled four α-helix configuration. Targeted deletion of IL-13 in mice resulted in impaired Th2 cell development and indicated an important role for IL-13 in the expulsion of gastrointestinal parasites. IL-13 exerts anti-inflammatory effects on monocytes and macrophages and it inhibits the expression of inflammatory cytokines such as IL-1beta, TNF-alpha, IL-6 and IL-8. IL-13 has also been shown to enhance B cell proliferation and to induce isotype switching resulting in increased production of IgE. Mature rat IL-13 shares 59 %, 75 %, and 60 % amino acid sequence identity with human, mouse, and rhesus IL-13, respectively.