在westernblot中loadingbuffer的作用
1、指示剂，方便观察电泳进行的程度；2、密度大，携带你的样本沉到孔的底部；3、保持蛋白线性及携带过量负电荷的状态。 除此之外，里面最重要的是还有巯基乙醇还原剂来让蛋白质充分变性，同时保护-sh基团。......阅读全文
Leaf－GUS－Assay
一、实验试剂 GUS Buffer (500 ml) 2.0478 g Na2HPO4 1.2688 g NaH2PO4 (=50 mM NaPi pH7.0) 10 ml 0.5 M EDTA (=10 mM) 0.5 g Triton X-100 0.5 g N-L
Maxiprep－preparation－of－Plasmid－DNA
实验概要The PureLink™ HiPure Plasmid DNA Maxiprep Kit allows purification of 500–850 μg of high-quality plasmid DNA from 100–200 mL overnight E. coli cu
Cell－Surface－Immunofluorescence－Staining－Protocol
实验概要A method of identifying and enumerating specific cell types in a heterogeneous population of cells by enhancing the specific staining of desired
抗原修复锅的使用方法
免疫组织化学方法成功与否关键在于抗原决定簇的保存和暴露.组织经甲醛固定.甲醛的醛基与抗原蛋白的氨基交联,使决定簇的构像改变.从而影响检测蛋白表达.要充分暴露抗原决定簇，通常用到抗原修复锅Antigen Retriever。强烈推荐EMS最具有竞争力的一款产品，适于甲醛固定的组织，经石蜡包埋后进行免疫
DualColor－ELISPOT－Assay－for－the－Simultaneous－Detection2
21. Add 100 µL of developing buffer to all wells using a multichannel pipette and incubate at room temperature for at least 2 h. 22. Wash the ELISPOT
BioRad（伯乐）Western－Blot半干法转膜的十大注意事项
首先讲转膜仪的清洗：Do not immerse the unit in liquid. Use special care when cleaning the anode plate to avoid scratching or marring the platinum. Do not use
Comparison－of－Enzymatic－and－NonEnzymatic－Means3
MTT Assay on Reattached CellsAs seen in Fig. 2 , the proportion of viable MSC that re-attached was significantly higher (p = 0.0004) upon dissociati
Top－10－Fun－Facts－for－DNA－Electrophoresis
Did you know:When preparing agarose for electrophoresis, it is best to sprinkle the agarose into room-temperature buffer, swirl, and let sit at least
Hitachi－CC40－Series制备型超速离心机疫苗分离使用举例
virusMaterialCoreSpeed（rpm）Flow rate（L/hr）Gradient(w/w) Sucrose and Buffer (1:1)Banding Position(w/w) SucroseJapanese Encephalitis VirusVero cellD, H3
PIC－Crosslinking－and－Immune－Precipitation
References Fishburn et. al., 2005, Molecular Cell, vol. 18 #3: Experimental Procedures pg. 376Immobilized Template assay (Hahn lab website)NotesDTT mu
Miniprep/Qiagen－kit
MaterialsFor purifying plasmid DNA from Escherichia coli cells, the Qiagen Spin Miniprep Kit produces quite reliable results.Do not autoclave solution
2－Dimensional－Gel－Electrophoretic－Analysis－for－Chicken－Egg
Overview This protocol is a detail description of the procedure in performing 2D gel electrophoresis for illustrating the protein profile of the w
Cellbased－ELISA－for－primary－cells
1. The 96-well micro-plates are pre-coated with extra cellular matrix.2. Primary cells are grown in the 96-well plates. Seed 100μl of 10,000-20,000
细胞凋亡检测操作流程三JC1检测凋亡细胞线粒体膜电...
细胞凋亡检测操作流程三--JC-1检测凋亡细胞线粒体膜电位改变凋亡检测操作流程 三、JC-1检测凋亡细胞线粒体膜电位改变BD™ MitoScreen (JC-1)线粒体膜电位检测试剂盒（551302）：组分描述JC-1(染料)4瓶，每瓶用于25个样本。冻干粉，使用前稀释至储存液（Stock Sol
Midiprep－preparation－of－Plasmid－DNA
实验概要The PureLink™ HiPure Plasmid DNA Midiprep Kit allows purification of 100–350 μg of high-quality plasmid DNA from 15–25 mL overnight E. coli cul
Crosslinking－the－an...
实验概要We provide a detailed protocol for antibody crosslinking to beads enabling elution of the target protein without contamination by the antibody.主
Immunoprecipitation...－（二）
3. ImmunoprecipitationImmunoprecipitation can be performed using antibodies by different methods. The use of these methods is based on the requiremen
德国IBL－ASP－ELISA试剂盒使用说明（三）
H . PREPARATIONS BEFORE THE ANALYSIS a) Preparation of buffers and reagents 1. Washing buffer (PBS-T; 0.05% Tween 20 in PBS): Dissolve one tablet (C)
Leaf－GUS－Assay
实验概要a protocol for Leaf GUS Assay This protocol is for small samples (usually single leaf from 21DAI plants), scale up for larger samplesAs there are
MaxiYield－protocol－for－10－20－ml－Whole－Blood
实验概要The E.Z.N.A.® Blood DNA Maxi Kit is designed for isolation of genomic DNA from up to 25 ml of fresh, whole blood treated with any common anticoa
Purification－of－Genomic－DNA－Using－PureLink™－Silica－Columns
实验概要The PureLink™ Genomic DNA Purification Kit allows rapid and efficient purification of genomic DNA. The kit is designed to efficiently isolate ge
夹心法ELISA检测白介素8操作步骤及注意事项
羊源性成分核酸检测PCR-荧光探针试剂盒操作步骤： 1. 包被：pH9.5 碳酸盐缓液稀释4D7单克隆抗体粗提γ球蛋白至1μg/ml,加入96孔板,100μl/孔，放4℃,36小时。 2. 封闭：0.1%吐温PBS(Buffer A)冲洗96孔板三次，加3%BSA Buffer A(Buffer B
细菌基因组DNA提取试剂使用说明（一）
细菌基因组DNA提取试剂使用说明书◆ 产品说明基于硅胶柱纯化方式。试剂中的溶菌酶消化去除细菌的细胞壁，革兰氏阳性细菌还可加入玻璃珠涡旋破壁，在裂解液和蛋白酶作用下裂解消化，DNA释放到裂解液中。加入乙醇后，转移至吸附柱中过滤，DNA被吸附至吸附柱的膜上，而蛋白质则被去除。吸附柱经Buffer G
总RNA提取与Northern杂交（3）
第二天：将上述物品揭开，将胶正面朝下，膜正面朝上，用铅笔作好标记。将胶浸泡在EB中1-2分钟，用DEPC H2O清洗，将膜放在滤纸上面，夹好，4度下保存，或者直接进行预杂交。UV杂交（有助于RNA结合到膜上面）。五、预杂交和杂交预杂交和杂交 buffer： 100ul20×SSC 25ml （5×S
Cosmid－DNA－Isolation
实验概要Isolation of high yields of highly pure cosmid DNA using PureLink™ HiPure Plasmid Purification Kits.实验原理The PureLink™ HiPure Plasmid Purification
Isolation－of－Genomic－DNA－from－Tissue－Using－ChargeSwitch®－Technology
实验概要 The ChargeSwitch® gDNA Mini and Micro Tissue Kits allow rapid and efficient purification of genomic DNA from mini (10-25 mg) or micro (3-5 mg)
Immunoprecipitation
Immunoprecipitation (IP) is one of the most widely used immunochemical techniques. Immunoprecipitation followed by SDS-PAGE and immunoblotting, is rou
Nuclear－Extraction－Protocol
实验概要The procedure presented below describes a method for extracting nuclear from several cell lines of human origin.主要试剂Hypotonic Buffer Solution20 mM
Adhesion－Assay－Protocol
Materials to be prepared beforehand:1) Washing Buffer--0.1% BSA in medium (DMEM or RPMI)2) Blocking Buffer--0.5% BSA in medium (DMEM or RPMI)3) Lamini
troponin蛋白纯化－Protein－purification:－troponins
Overview TROPONINS The calcium-dependent regulatory protein complex located on the thin actin filaments of muscle comprises of TnC (17.8 kDa), TnI (2