ProtocolforTrichloroaceticAcid(TCA)Precipitation
IntroductionThe efficiency of nucleotide incorporation in DNA/RNA polymerization reactions (e.g. transcription, reverse transcription, and DNA replication) can be determined by trichloroacetic acid (TCA) precipitation. TCA precipitates nucleic acid polymers longer than ~20 nucleotides and can therefore be used to separate radiolabeled nucleotides incorporated into nucleic acid from unincorporated label.The following ......阅读全文
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
沉淀反应技术(Precipitation－reaction－technique)
一、 概述 可溶性抗原（如细菌浸出液、含菌病料浸出液、血清以及其他来源的蛋白质、多糖质、类脂体等）与其相应的抗体相遇后，在电解质参与下，抗原抗体结合形成白色絮状沉淀，出现白色沉淀线，此种现象称为沉淀反应。沉淀反应中的抗原叫沉淀原（precipitinogen）,与沉淀原发生反应的抗体称为沉淀
Acid－Phenol－Yeast－RNA－Prep
This is the preferred method for yeast RNA preparationuse Gloves and RNAse free solutions throughout.1. Use a YPD overnight culture to innoculate fres
核酸提取(The－Extraction－of－Nucleic－Acid)
【实验目的】 1．掌握核酸提取的基本原理和基本方法 2．掌握检测核酸浓度及纯度的原理及方法 【实验原理】 DNA是遗传信息的载体,是最重要的生物信息分子,是分子生物学研究的主要对象,因此DNA的提取也应是分子生物学实验技术中最重要、最基本的操作。如不能有效的完成DNA提取方面的工作，那就根本谈不
A－Method－for－Assaying－Deubiquitinating－Enzymes1
AbstractA general method for the assay of deubiquitinating enzymes was described in detail using 125I-labeled ubiquitin-fused αNH-MHISPPEPESEEEEEHYC (
RNA－extraction－using－trizol/tri
RNA extraction with TRIzol (Invitrogen product name) or the equivalent TRI (Sigma-Aldrich product name) is a common method of total RNA extraction fro
Basic－procedures－for－bacteria－culture1
A. Phenol extraction of DNA samplesPhenol extraction is a common technique used to purify a DNA sample (1). Typically, an equal volume of TE-saturated
沉淀反应技术(Precipitation－reaction－technique)（2）
2．取试管5支（5mm×50mm）置于试管架上，编号。第1、2试管内加炭疽沉淀血清，第3、4试管内加正常血清，第5管内加待检抗原，分别用毛细滴管加至4mm～5mm。3．第1、4、5试管轻轻叠加等量缓冲液，第2、3试管轻轻叠加等量待检抗原。为防止上下两界面破坏，可将小试管从试管架取出，微倾斜，沿试管壁
沉淀反应技术(Precipitation－reaction－technique)（1）
一、 概述可溶性抗原（如细菌浸出液、含菌病料浸出液、血清以及其他来源的蛋白质、多糖质、类脂体等）与其相应的抗体相遇后，在电解质参与下，抗原抗体结合形成白色絮状沉淀，出现白色沉淀线，此种现象称为沉淀反应。沉淀反应中的抗原叫沉淀原（precipitinogen）,与沉淀原发生反应的抗体称为沉淀素（pre
Immunoprecipitation－Protocol
实验概要Immunoprecipitation is a procedure by which proteins or peptides that react specifically with an antibody are removed from solution and examined
ELISPOT－Protocol
实验概要The Elispot (Enzyme Linked Immuno-Spot) assay provides an effective method of measuring the antibody or cytokine production of immune cells on t
ELISA－protocol
ELISA protocol：1.取5－10ul BMMY表达上清用0.05M NaHCO3稀释到100ul铺ELISA板，37度或室温振荡大于1小时。注意一定要做一个GS115空菌株表达上清作为阴性对照，最好还找一个带有histag的蛋白作为阳性对照。2.TPBS洗板3次，方法：倒掉铺板液，倒置于
ELISPOT－Protocol
实验概要The Elispot (Enzyme Linked Immuno-Spot) assay provides an effective method of measuring the antibody or cytokine production of immune cells on t
Immunoblot－Protocol
This method was successful in our lab using prostate tissue and for our specific objectives. Investigators must be aware that they will need to tailor
ELISPOT－protocol
实验概要The procedure below is a general guideline procedure for ELISPOT. Abcam ELISPOT kits have been designed for detection of various cytokines and g
NAi－protocol
siRNA protocolsOur current strategy with siRNA is to synthesis relatively small amounts enzymatically and use these to test for efficiency by western
PCR－protocol
PCR reactionProtocol for 50µl reaction - adjust amounts if necessary, for a 20µl reaction use the same volumes of primer and dNTP-mix, but adjust the
RLGS－protocol
A. Preparation of DNA SolutionIn the case of rice, for example This method may be appllicable for many grass species and some other plants.
RNAi－protocol
siRNA protocolsOur current strategy with siRNA is to synthesis relatively small amounts enzymatically and use these to test for efficiency by western
COMPARISION－OF－DIFFERENT－PROTEIN－DETERMINATION－METHODS
COMPARISION OF DIFFERENT PROTEIN DETERMINATION METHODSCompanyMethodDetection RangeApplications -CompatibilityAssay protocolPrecautions-InterferencesA
Probiotic－Attributes－of－Lactic－Acid－Bacteria－Isolates
IntroductionPresently the consumption of probiotic food is highly popular worldwide for their health beneficial effects. Commonly used probiotic bacte
耐Hydrofluoric－acid电极使用技巧
1.将耐Hydrofluoric acid电极连接到ph计的输入端，正确连接。2. 正确配制耐Hydrofluoric acid电极浸泡混合液：取37.25克KCL和1.75克混合磷酸盐粉末配制成250ml混合溶液。3.严禁用耐Hydrofluoric acid电极测量能溶解PVC以及ABS的有机溶
Preparation－of－Plasmid－DNA－by－Alkaline－Lysis－with－SDS:－Maxipreparation
实验概要Plasmid DNA is isolated from large-scale (500 ml) bacterial cultures by treatment with alkali and SDS.主要试剂Buffers and SolutionsAlkaline lysis solu
Intracellular－Staining－Protocol
1. Fix cells- Add16% formaldehyde directly into culture medium to obtain a final concentration of 1.5% formaldehyde.2. Incubate in fixative for 10 min
Bacteria－Culture－Protocol
Bacteria Culture ProtocolBy 徐晓政1、TBS Medium Preparation:Prepare 1L of TBS medium contains:Tryptone 12gYeast extract 24gNaCl 5gSodium Succinate 5gGlyce
Yale－Immunofluorescence－Protocol
实验概要We provide a protocol for fixation, immunostaining, and imaging in 384-well Plates.主要试剂Reagents1. 384-well view plates (Aurora)2. HUVEC (pooled, L
Histone－blotting－protocol
实验概要 Western blot detection of histone proteins. 实验步骤 The following protocol refers to the western blot detection of histone proteins derived from p
Immunofluorescence－Microscopy－Protocol
实验概要Immunofluorescence allows the imaging of a specific factor in cells or tissue sections through the use of a specific antibody chemically which i
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