【胱抑素-C】重組人胱氨酸-C-Recombinant Human Cystatin C, His Tag代理/參數(shù)/廠家-蛋白標準品-艾美捷科技有限公司

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背景資料: Cystatins are a superfamily of cysteine proteinase inhibitors found in both plants and animals. They comprise a group of proteinase inhibitors， widely distributed in tissues and body fluids， and form tight complexes with cysteine proteases such as cathepsin B， H， L and S. Cystatin C， a secreted molecule of this family， is of interest from biochemical， medicine and evolutionary points of view. Cystatin C， with molecular weight of 13260 Da， is composed of 120 amino acids， lacks carbohydrate and has two disulfide bridges located near the carboxyl terminus. Cystatin C is increased in patients with malignant diseases， and is related to the insufficiency of renal function and appears to be a better marker than creatinine. On the other hand， low levels of cystatin C involve cause the breakdown of the elastic laminae and， subsequently， the atherosclerosis and abdominal aortic aneurysm.

溶解建議: Filtered White lyophilized （freeze-dried） powder. Lyophilized from from 0.5mg/mL in 20mM Tris buffer and 50mM NaCl pH-7.5. Add deionized water to prepare a working stock solution of approximately 0.5mg/mL and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.

保存建議: Store lyophilized protein at –20℃. Lyophilized protein remains stable until the expiry date when stored at –20℃. Aliquot reconstituted protein to avoid repeated freezing/thawing cycles and store at –80℃ for long term storage. Reconstituted protein can be stored at 4℃ for a limited period of time； it does not show any change after two weeks at 4℃.

其他: ProSpec 是一家全球著名細胞因子蛋白生產(chǎn)和研發(fā)的公司，具有20多年的生產(chǎn)經(jīng)驗，專注于蛋白（重組及合成）生產(chǎn)研發(fā)。我們的核心產(chǎn)品包括：干擾素、白介素、骨蛋白、腫瘤壞死因子、成纖維生長因子、瘦素、干細胞因子、催乳素、表皮生長因子、胰島素樣生長因子、神經(jīng)生長因子、集落刺激因子、激素、酶、病毒抗原以及各種重組蛋白等。領(lǐng)先的生產(chǎn)工藝和規(guī)模使其可以提供毫克到克級蛋白，價格優(yōu)于同類公司。絕大部分產(chǎn)品是天然成熟型蛋白，而不含有標簽蛋白。考慮到大部分研究者希望能更靈活地配制蛋白溶液，ProSpec-Tany絕大部分產(chǎn)品沒有添加保護劑或鹽，這就對工藝提出了更高的要求。同時，ProSpec-Tany絕大部分產(chǎn)品為凍干粉，因此易于運輸和保存。