ChIPChipE.coli
AbstractChIP-Chip stands for Chromatin Immunoprecipitation and chip in the sense of DNA microarray. It is a technique to determine the genome-wide binding sites of a DNA-binding protein. While the basic principle is the same for all species, there are some differences in handling cells. This protocol is developed and tested for E. coli. It should work the same way for other bacteria but that remains to......阅读全文
ChIPChip－E.－coli
AbstractChIP-Chip stands for Chromatin Immunoprecipitation and chip in the sense of DNA microarray. It is a technique to determine the genome-wide bin
ChIPChip技术的介绍与应用
人类基因组计划的完成开启了一个新的纪元——功能基因组时代来临，与基因信息相比较，人们更关注于基因的功能、调控网络与信号通路等信息。表观遗传学研究与核内蛋白因子的功能分析成为基因表达调控研究的重要组成部分。结合了染色质免疫共沉淀与基因芯片技术的ChIP-chip技术的浮现使得全基因组范围内DNA与蛋白
Transformation－of－E.－coli－by－Electroporation
实验概要 Electrocompetent bacteria are prepared by growing cultures to mid-log phase, washing the bacteria extensively at low temperature, and
染色质免疫沉淀芯片（ChipChip）
该技术能够快速在目标基因组的染色体中确定特异DNA结合蛋白的准确结合位点，ChIP芯片也可以在一个基因组的任何感兴趣的区域内寻找染色体的结构改变。一、ChIP-Chip的用途（1）在基因组范围内确定基因转录因子的DNA结合位点和其他DNA结合蛋白或蛋白复合体的DNA结合位点。（2）染色体活性状态的定
Cell－cycle－analysis－of－Escherichia－coli－cells
Cell cycle analysis of Escherichia coli cellsC period = the time for a round of chromosome replicationD period = the time between the end of a round o
Antibiotic－concentrations－for－E.－coli－selection
Antibiotic ConcentrationsThe following list shows recommended antibiotic concentrations for LB media or agar plates.AntibioticConcentrationAmpicillin1
Maintenance－of－Probes－in－bacteria－including－Escherichia－coli
Plasmid (pUC series) containing genomic DNA fragments are maintained in E. coli strain DH5aTM. The E. coli cultures are routinely cultured at 37 C on
Sauer:Lysing－E.－coli－with－Lysozymes
Getting The Most Out Of Your BugsNative lysis is a staple protocol in practically every biochemistry lab, yet there is significant variability in the
Phospholipid－Biosynthesis－in－E.－Coli－Pathway
The biosynthesis of membrane phospholipids occurs through distinct pathways in mammals and bacteria. In the mammalian pathway for the synthesis of pho
Sauer:RNA－Purification－from－E.－coli
My Experience Purifying RNA from E. coliRegarding RNA extraction, there is a horrible tendency of people to use kits for RNA extraction with bacteria.
Long－Term－Storage－of－Transformed－E.coli
Long Term Storage of Transformed E.coliTransfer 10 ml of 250 ml overnight culture in sterile flip-cap 15 ml Tube.Add sterile Glycerol to 15 % final co
Maxiprep－of－plasmid－DNA－from－E.－coli
IngredientsIngredients are per culture; make enough for one extra culture to allow for pipetting error).150μL sterile 50% glycerol1mL TEG (25mM Tris-C
Transformation－of－Electrocompetent－E.－coli－with－Blue/White－selection
Desalt DNA template by EtOH precipitation in NaOAc followed by at least 2x washes with 70% EtOH. Resuspend in 5 - 15 µL of sterile H2O.Rinse cuvettes
Maxiprep－of－plasmid－DNA－from－E.coli－protocol
Solutions/reagents:LB broth + selective marker50% sterile glycerolTEG(25mM Tris-Cl, 10mM EDTA, 50mM dextrose)20 mg/ml lysozyme10% SDS4M NaOHautoclaved
Analysis－of－total－E.－coli－protein－by－SDS－PAGE
1. In microfuge tubes, spin down 0.1 ml of uninduced cells grown to near saturation or 0.15 ml of IPTG induced cells. Remove YT (or LB) media with a p
E.coli－Total－RNA－Labeling－Protocol－for－Spotted－Microarray
Note:Start with 20 ug of total RNA for each labeling reaction.All solutions that can be filtered should be filtered.Cy dyes are light sensitive and sh
DNA－Immunoprecipitation－for－the－Determination－of－DNABinding－Specificity
Andrea J. Gossett and Jason D. Lieb1Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA1Corresponding autho
免疫学技术专题：染色质免疫沉淀芯片（ChipChip）
该技术能够快速在目标基因组的染色体中确定特异DNA结合蛋白的准确结合位点，ChIP芯片也可以在一个基因组的任何感兴趣的区域内寻找染色体的结构改变。一、ChIP-Chip的用途（1）在基因组范围内确定基因转录因子的DNA结合位点和其他DNA结合蛋白或蛋白复合体的DNA结合位点。（2）染色体活性状态的定
E.coli基因文库的分类和选择
自 1995 年成立以来，Dharmacon 在生物信息学，RNA 生物学和合成化学方面的专长 , 使我们能够开发出一整套研究基因功能的产品。作为 RNA 定制合成的leader，Dharmacon 公司是 RNA 干扰新发现领域的早期参与者，并且在若干重要的科学发现中，以及确保沉默效率的
E.coli基因文库的分类和选择
文库种类Dharmacon 大肠杆菌资源库包括大肠杆菌Keio基因敲除文库，监测基因表达的启动子-GFP融合文库，以及用于研究蛋白质-蛋白质相互作用的标记ORF文库。大肠杆菌（E.coli）基因cDNA&ORF文库 （1）大肠杆菌Keio基因敲除文库（E.coli Keio Knockout Col
技术和方案26－小量提取E.coli－DNA
试剂、试剂盒Terrific broth实验步骤1.将单菌落接种于 3 ml 含有 100 ug/ml 氨节青霉素的 Terrific broth 培养基中，37°C 培养过夜。2.取 1.5 ml 细胞悬液于微量离心管中，13000 r/min 离心 1min，弃去上清。3.加入 100 ul 溶
重组蛋白在E.coli中表达及纯化
一. 实验目的1. 掌握重组蛋白诱导表达的方法；2. 亲和层析法纯化His 标记的融合蛋白二. 实验原理将目的基因连接在表达载体后，通过加入诱导剂IPTG诱导目的基因表达。表达载体除具有蛋白表达所需要的启动子外，在终止子前有6个His编码序列，便于蛋白的亲和层析纯化。亲和层析以蛋白质或生物大分子和结
质粒DNA分离方法比较（以E.Coli为例）
在沉淀中加入异丙醇得到粗制的质粒DNA沉淀中加入TE缓冲液(pH8.0)粗制DNA在-20℃在重力状态喜爱沉淀15min以上，高速离心机12000rpm（近15000g）4℃离心5min去上清用苯酚抽提去蛋白质或用分子筛去蛋白质用RNA酶降解RNA真空中抽去异丙醇，溶液中加入TE缓冲液过柱（聚丙烯
Purifying－Large－E.－coli－Restriction－Fragments－from－PulsedField－Gels
DNA PreparationE. coli chromosomal DNA is prepared following the method of Heath et al. ( J. Bacteriol., 174, 1992). Cells are embedded in agarose, th
GenomeWide－Identification－of－Transcription－FactorBinding－Sites－in...
Genome-Wide Identification of Transcription Factor-Binding Sites in Plants Using Chromatin Immunoprecipitation Followed by Microarray (ChIP-chip)
牛大肠杆菌（E.coli）ELISA试剂盒操作说明
本试剂仅供研究使用目的：本试剂盒用于检测牛血清，牛奶及相关液体样本中牛大肠杆菌（E.coli）水平。实验原理：本试剂盒采用双抗体夹心酶联免疫法（ELISA）测定标本中牛大肠杆菌（E.coli）。用纯化的牛大肠杆菌（E.coli）抗体包被微孔板，制成固相抗体，可与样品中大肠杆菌（E.coli）相结合，
关于染色质免疫共沉淀的技术结合介绍
１、CHIP-seq ChIP-Seq的原理是：首先通过染色质免疫共沉淀技术（ChIP）特异性地富集目的蛋白结合的DNA片段，并对其进行纯化与文库构建；然后对富集得到的DNA片段进行高通量测序。研究人员通过将获得的数百万条序列标签精确定位到基因组上，从而获得全基因组范围内与组蛋白、转录因子等相
技术和方案27－E.coli－感受态的制备与转化
实验步骤展开
电穿孔转化感受态E.coli－TG1细胞的制备
材料和试剂1. 恒温旋转式摇床2. 三角烧瓶（容量为1或2L）3. 50ml灭菌离心管4. 低温高速离心机5. SB培养基细菌培养用胰化蛋白胨 20g细菌培养用酵母提取物 5gNaCl 0.5g去离子水 950
电穿孔转化感受态E.coli－TG1细胞的制备
实验概要细胞处于能够吸收DNA的状态称感受态，处于感受态的细胞称作感受态细胞。受体细胞经过一些特殊方法（如：CaCl2，RuCl等化学试剂法）的处理后，细胞膜的通透性发生变化，成为能容许多有外源DNA的载体分子通过的感受态细胞。主要试剂SB培养基 20%葡萄糖溶液1mol/L MgCl2溶液10%甘