ElectrophoresisofPCRproductswithSunrisegelapparatus
Electrophoresis of PCR products with Life Technologies Sunrise gel apparatusGel: In a 500 ml Pyrex® glass bottle, add:Agarose:3 gH2O270 mls10X TA30 mlsScrew cap partially on. Microwave at high power for 2 minutes. Carefully swirl (do little-by-little in case it boils violently) to mix in agarose.If agarose is not fully dissolved, microwave another 20 - 30 sec, repeating until dissolved. Cool until......阅读全文
QUALITATIVE－ANALYSIS－OF－DNA－FRAGMENTATION－BY－AGAROSE－GEL－ELECTROPHORESIS
1. IntroductionNuclear morphology changes characteristic of apoptosis appear within the cell together with a distinctive biochemical event: the endonu
PCR产物纯化方法
Purification of PCR Products in Preparation for CloningJoseph SambrookPeter Maccallum Cancer Institute and The University of Melbourne, AustraliaDavid
RNA－analysis－on－nondenaturing－agarose－gel－electrophoresis
实验概要RNA analysis on non-denaturing agarose gel electrophoresis实验步骤1. The following gel electrophoresis conditions are recommended:- use 1X TAE buffer
RNA－analysis－on－nondenaturing－agarose－gel－electrophoresis
1. The following gel electrophoresis conditions are recommended:- use 1X TAE buffer instead of 1X TBE- use agarose gel in the concentration of 1.1%-1.
DNA凝胶电泳（DNA－agarose－gel－electrophoresis）
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基于PCR技术的染色质沉淀分析
INTRODUCTIONAfter chromatin immunoprecipitation (ChIP), different PCR-based approaches can be used to determine how much DNA is precipitated at a locu
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1. For each PCR reaction (50 µL) prepare a 1.5mL microcentrifuge tube containing the following: - 5 µL of 3M sodium acetate (NaOAc), pH 4.6
Cloning－PCR－products－using－TA－vectors
Cloning PCR products using TA vectorsby Paul N. Hengen, Ph.D. *Methods and reagents is a unique monthly column that highlights current discussions in
Ethanol－precipitation－method－for－purifying－PCR－products
1. For each PCR reaction (50 µL) prepare a 1.5mL microcentrifuge tube containing the following: - 5 µL of 3M sodium acetate (NaOAc), pH 4.6
凝胶电泳(gel－electrophoresis)操作注意事项
1.缓冲系统：在没有离子存在时，电导率最小，DNA不迁移，或迁移极慢，在高离子强度的缓冲液中，电导很高并产热，可能导致DNA变性，因此应注意缓冲液的使用是否正确。长时间高压电泳时，常更新缓冲液或在两槽间进行缓冲液的循环是可取的。2.琼脂糖：不同厂家、不同批号的琼脂糖，其杂质含量不同，影响DNA的迁移
凝胶电泳（gel－electrophoresis）常见问题分析
琼脂糖凝胶电泳检测DNA时,跑出的带后面出现拖尾现象,什么原因造成的?参考见解： DNA带模糊：1、 DNA降解??避免核酸酶污染。2、 DNA上样量过多??减少凝胶中DNA上样量。3、 所用电泳条件不合适??电泳时电压不应超过20V/cm，温度＜30℃,巨大DNA链，温度应＜15℃，核查所用电泳缓
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影响电泳分离的主要因素：待分离生物大分子的性质：待分离生物大分子所带的电荷、分子大小和性质都会对电泳有明显影响。一般来说，子带的电荷量越大、直径越小、形状越接近球形，则其电泳迁移速度越快。2. 缓冲液的性质：缓冲液的pH值会影响待分离生物大分子的解离程度，从而对其带电性质产生影响，溶液pH值距离
DNA酶切及凝胶电泳（gel－electrophoresis）
材料、设备及试剂 一、 材料 λDNA: 购买或自行提取纯化; 重组T-vector质料或pUC19质粒; EcoRI酶及其酶切缓冲液: 购买成品; HindⅢ酶及其酶切缓冲液: 购买成品;琼脂糖(Agarose): 进口或国产的电泳用琼脂糖均可。 二、 设备 水平式电泳装置,电泳仪,台式高
QUALITATIVE－ANALYSIS－OF－DNA－FRAGMENTATION－BY－AGAROSE－GEL－ELECTROPHORESIS2
3. Commentary 3.1. Background informationApoptosis is an innate mechanism of eukariotic cell suicide which plays a major role in many physiological
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Section 2.1Nondenaturing Polyacrylamide Gel Electrophoresis of ProteinsJohn M. Walker1. IntroductionSDS-PAGE (Section 2.2) is probably the most commo
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3. Characterization of the method precision and repeatability.a. Ensemble PCRs in the same conditions established before using quantities of target in
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DNA电泳（主要内容如下） Preparation of Agarose Gel and Electrophoresis Extraction of DNA From Agarose Gel Extraction of DNA from Acrylamide Gels DNA Marker
重组DNA的分离、克隆与测序实验手册2
C. Restriction digestionRestriction enzyme digestions are performed by incubating double-stranded DNA molecules with an appropriate amount of restrict
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DNA克隆（主要内容如下）· General Procedure· PCR Cloning· Subcloning· ET Cloning· Vector Preparation· Ligation Re
PCR实验指导与常见问题分析5
MgCl2 concentrationRelationship between MgCl2 and dNTP concentrationdNTP concentrations of about 200µM each are usually recommended for the Taq polyme
DNA酶切及凝胶电泳（gel－electrophoresis）1
第一节 概 述 一. DNA的限制性内切酶酶切分析 限制性内切酶能特异地结合于一段被称为限制性酶识别序列的DNA序列之内或其附近的特异位点上，并切割双链DNA。它可分为三类:Ⅰ类和Ⅲ类酶在同一蛋白质分子中兼有切割和修饰(甲基化)作用且依赖于ATP的存在。Ⅰ类酶结合于识别位点并随机的切割识别位
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甲醛洋菜胶体电泳 （formaldehyde-agarose gel electrophoresis）甲醛是一种常用的RNA 变性剂。在进行甲醛洋菜胶体电泳分析时，必须先配制含有甲醛的洋菜胶体，RNA 也必须先以甲醛及formamide 进行变性处理，以确保其二度结构充分被打开。由于甲醛可能
DNA酶切及凝胶电泳（gel－electrophoresis）2
三、试剂 1、5×TBE电泳缓冲液：配方见第一章。 2、6×电泳载样缓冲液：0.25% 溴粉蓝，40%(w/v) 蔗糖水溶液，贮存于 4℃。 3、溴化乙锭(EB)溶液母液:将EB配制成10mg/ml，用铝箔或黑纸包裹容器，储于 室温即可。 第三节 操作步骤 一、
Analysis－of－Proteins－using－Small－Format－2D－Gel－Electrophoresis
Preparation of protein samplesIntracellular virus proteinsThe following method has been developed principally for the analysis of intracellular protei
琼脂糖凝胶电泳（agarose－gel－electrophoresis）介绍
主要试剂：核酸电泳缓冲液有三种，即Tris-硼酸(TBE)、Tris-乙酸(TAE)和Tris-磷酸(TPE).TBE与TPE缓冲容量高，DNA分离效果好，但TPE在DNA段回收时含磷酸盐浓度高，容易使DNA沉淀.TAE缓冲容量低，但价格较便宜，因而推荐选用TBE.缓冲液中的EDTA可螯合二价阳离子
Methylation－Specific－PCR
Methylation Specific PCRProtocol written by James Herman*Methylation Specific PCR (MSP) is a simple rapid and inexpensive method to determine the meth
Thermal－Cycling－Profile－for－Standard－PCR
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实验概要Peprotech provides a typical western transfer and development protocol.实验原理Western Transfer, also known as Western Blotting, is a rapid immunobl
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· Easy YAC Preparation Method (Andrew Davies,Shaw lab)· Screening YAC libraries (Donis Keller Lab)This is a method for screening YAC l
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Preparation of Para-magnetic beads from Promega cat#Z5482:a) suspend magnetic particles in bottle - transfer 200 ul (200 ug) of beads per sampleof RNA