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艾美捷R-Phycoerythrin標記鏈霉親和素英文說明書:
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(zhì)的一種蛋白質(zhì),都具有與生物素特異結(jié)合的能力,結(jié)合常數(shù)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(chǔ)上的生物素-鏈霉親和素系統(tǒng)的應用比生物素-親和素系統(tǒng)有更大優(yōu)勢.
艾美捷R-Phycoerythrin標記鏈霉親和素基本參數(shù):
物理狀態(tài):凍干固體
儲存和再水合:將凍干固體儲存在2-8°C。用規(guī)定體積的dH2O(見產(chǎn)品規(guī)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(jié)。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(jié)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(wěn)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(shù)應用
稀釋因子以范圍的形式表示,因為最佳稀釋度是許多因素的函數(shù),如抗原密度、滲透性等。實際使用的稀釋度必須根據(jù)經(jīng)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標記的色譜級蛋白聯(lián)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(jié)構(gòu)更小,鏈霉親和素更穩(wěn)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(lián)免疫、免疫組化、流式分析、原位雜交以及斑點雜交等實驗.
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