Information：

Streptavidin, a bacterial protein isolated from Streptomyces avidinii, is similar to egg-white avidin in its ability to bind biotin, ａnd has been used as a replacement for egg-white avidin because of its more favorable chemical properties.

Conjugates of streptavidin are recommended for use with Biotin-SP-conjugated antibodies ａnd Biotin-SP-conjugated ChromPure proteins.

Usage：

Physical State: Freeze-dried solid

Storage ａnd Rehydration: Store freeze-dried solid at 2-8°C. Rehydrate with the indicated volume of dH2O (see product specification sheet) ａnd centrifuge if not clear. Store at 2-8°C – do not freeze. Prepare working dilution on day of use.

Expiration date: six months from date of rehydration. The expiration date may be extended if test results are acceptable for the intended use.

Buffer: 0.01M Sodium Phosphate, 0.25M NaCl, pH 7.6

Stabilizer: 15 mg/ml Bovine Serum Albumin (IgG-Free, Protease-Free)

Preservative: 0.05% Sodium Azide

Suggested Working Concentration or Dilution Range:

1:50 - 1:200 for most applications

Dilution factors are presented in the form of a range because the optimal dilution is a function of many factors, such as antigen density, permeability, etc. The actual dilution used must be determined empirically.

Conjugate：

R-Phycoerythrin

Amax: 488 Emax: 580nm

艾美捷R-Phycoerythrin標記鏈霉親和素中文說明書：

鏈霉親和素是與親和素具有相似性質的一種蛋白質，都具有與生物素特異結合的能力，結合常數高達10（15）M.同時，由于鏈霉親和素等電點比親和素低，且不含糖基鏈，故在檢測中的靈敏度和特異性都高于親和素，建立在此基礎上的生物素-鏈霉親和素系統的應用比生物素-親和素系統有更大優勢.

艾美捷R-Phycoerythrin標記鏈霉親和素基本參數：

物理狀態：凍干固體

儲存和再水合：將凍干固體儲存在2-8°C。用規定體積的dH2O（見產品規格表）進行再水化，如果不澄清，則進行離心。儲存在2-8°C–不要凍結。使用當天準備工作稀釋液。

有效期：自補液之日起六個月。如果試驗結果可用于預期用途，則可延長有效期。

緩沖液：0.01M磷酸鈉，0.25M NaCl，pH 7.6

穩定劑：15 mg/ml牛血清白蛋白（無IgG、無蛋白酶）

防腐劑：0.05%疊氮化鈉

建議工作濃度或稀釋范圍：

1： 50-1:200適用于大多數應用

稀釋因子以范圍的形式表示，因為佳稀釋度是許多因素的函數，如抗原密度、滲透性等。實際使用的稀釋度必須根據經驗確定。

艾美捷R-Phycoerythrin標記鏈霉親和素可與Biotin標記的各種親和純化二抗或者Biotin標記的色譜蛋白聯用進行各種免疫檢測.

與親和素相比，由于更容易穿透組織并且分子結構更小，鏈霉親和素更穩定、更靈敏，并且背景更低.R-Phycoerythrin標記鏈霉親和素可以用各種酶聯免疫、免疫組化、流式分析、原位雜交以及斑點雜交等實驗.

來源：https://www.amyjet.com/products/016-110-084.shtml