CosmidCloning:Cellpreparation,DNApackaging,andCellTransfection
Cosmid Cloning: Cell preparation, DNA packaging, and Cell TransfectionProtocol taken from Stratagene's Gigapack packaging extracts instruction manualHost bacteria (E. coli LE392)preparation:Pick one colony from fresh overnight culture on NZY agar plate and inoculate 50 ml NZY broth supplemented with 0.2% maltose and 10 mM MgSO4.Grow at 37C, shaking, 4-6 h (do not grow past OD600 1.0/ml).Pellet bacteria 2000 rpm f......阅读全文
Transfecting－Suspension－Cells
实验概要将转移基因整合到细胞染色体DNA上,形成稳定表达转移基因的细胞系。 实验原理 细胞转染技术是目前广泛应用于病毒基因结构与功能以及基因调控等的研究。细胞转染可分为短暂转染和稳定(或永久) 转染两种。在短暂转染中,被转染基因并不整合至细胞染色体中,因而不能随细胞分裂而传代。转入病毒基因的转
定量RTPCR－（Quantitative－RTPCR）
Application: Quantitative RT-PCR is used to quantify mRNA in both relative and absolute terms. It can be applied for the quantification of mRNA expres
单克隆抗体
· Tips and hints for the storage of antibodies (Synaptic Systems)· Purification of IgG Using Protein A- or Protein G-Agarose(KPL)·
Genomic－Cloning－Technical－Manual
Genomic Cloning Technical ManualAn optimal strategy for genomic cloning should meet three requirements: 1) a maximum number of recombinants should be
基因cloning经验指南
我们克隆基因的时候，往往可以通过一些途径（如pcr,EST库或者文库筛选）得到基因的部分片段。然后通过3'race 和 5'race 方法往两端延伸。有时会出现无法延伸的状况，如果你超作没有失误的话，这时候很有可能是你模板GC含量过高的缘故，普通pcr 是没有办法延伸的，可以用扩高g
Cloning－by－Limiting－Dilution－of－Hybridoma
Author: Nanci DonackiSource: Contributed by Nanci DonackiDate Added: Tue May 14 2002Date Modified: Tue Apr 27 2004MaterialsDMEM, high glucose (Life Te
转染L929细胞的简单步骤
L929是小鼠成纤维细胞瘤细胞株，经常被用来检测TNF-alpha及TNF-beta。对TNF的处理经常会引发细胞凋亡及死亡，因此L929细胞经常被用作免疫分析。但是，转染L929细胞非常难，尤其使用基于脂质体技术的转染试剂，我们使用GenJet VerⅡ及PolyJet转染L929细胞获得了7
Preparation－of－Genomic－DNA－from－Bacteria－using－Phase－Lock－GelTM
Preparation of Genomic DNA from Bacteria- using Phase Lock GelTM (Modified from Experimental Techniques in Bacterial Genetics, Jones and Bartlet, 1990
慢病毒转染肝细胞方法
Lentivirus Transduction of Hematopoietic CellsMing-Jie Li and John J. RossiDivision of Molecular Biology, Beckman Research Institute of the City of Ho
重组DNA的分离、克隆与测序实验手册6
Electroporation ProtocolPreparation of Electro-competent Cells:1. Grow XL1-Blue cells on a tetracycline plate (20 ug tet/ml of LB agar)2. Inoculate 3
Streptomyces:Protocols/Transformation－by－Electroporation
Description Transform E.coli cells with plasmid/cosmid DNA using the method of electrophoration (inserting plasmids into E.coli).Approx. Duration:Prep
Transient－Transfection－of－Cos1－Cells
Transient Transfection of Cos-1 CellsNote: This protocol has been optimized for Cos-1 cells. Successful transfection of each cell type requires optimi
Transfection－of－Mammalian－Cells－Using－Lipofectamine
Materials: LipofectamineBasal Medium containing 10% fetal bovine serum, 1% glutamine, 1% aaBasal Medium containing 1% glutamineBasal Medium cont
Transfection－of－siRNA－oligos－to－peritoneal－macrophages
Use DeliverX Transfection from PanomicsModified protocol belowStep 1: Make complexesNote: Do not scale up more than 3xThaw siRNA and DeliverX reagen
Reverse－Transfection－for－Gene－Function－Analysis
This guide describes a microarray-based system for the functional analysis in mammalian cells of many genes in parallel. Mammalian cells are cultured
DNA测序
DNA测序（主要内容如下）· Sequencing Gel Preparation· Preparation of Templates · DNA Sequencing by the Dideoxy Method· DNA Sequen
表皮细胞的转染实验技巧
表皮细胞广泛遍布于身体，正常的表皮细胞较难转染，尤其是使用基于脂质体技术的转染试剂。我们使用电转(Amaxa)方法转染正常人的结肠表皮细胞并得到了65%的GFP标记细胞。非常感谢SignaGen,现在我们使用GenJet Ver II可以成功转染正常人的结肠表皮细胞并且转染效率显著提高至75%。
Transfecting－Plasmid－DNA－into－NIH3T3－Cells－Using－Lipofectamine™－LTX－Reagent
实验概要Lipofectamine™ LTX Reagent is a proprietary, animal-origin free formulation for the transfection of DNA into eukaryotic cells with low cytotoxic
重组DNA的分离、克隆与测序实验手册7
III. Methods for DNA isolationA. Large scale double-stranded DNA isolationThe method used for the isolation of large scale cosmid and plasmid DNA is a
重组DNA的分离、克隆与测序实验手册3
G. Bacterial cell maintenanceFour strains of E. coli are used in these studies: JM101 for M13 infection and isolation (4), XL1BMRF' (Stratagene) f
如何优化LipoD293转染试剂？
LipoD293DNA转染试剂是脂质体DNA转运工具的升级版本。我们实验室使用LipoD293DNA转染试剂成功转染了HepG2，LNCaP，CHO及HEK293细胞。接下来，我们乐意就如何提高转染效率，降低毒性等方面的小技巧同大家分享。1、LipoD293/DNA的比率。尽管合适的比率由细胞类型决
“电子”基因克隆－（sillcon－cloning）
利用计算机来协助克隆 基因，称为“电子”基因克隆 （sillcon cloning），是与定位克隆 、定位候选克隆 策略并列的方法之一，即采用生物信息学的方法延伸EST序列，以获得基因部分乃至全长的cDNA序列。EST数据库的迅速扩张，已经并将继续导致识别与克隆 新基因策略发生革命性变化。1
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
Green－Fluorescent－Protein－as－an－Indicator－ofTransfection－in－Chicken－Embryos
Green fluorescent protein (GFP) is responsible for the bioluminescence of the Pacific Northwest jellyfish, Aequorea victoria. In A.victoria, the 27-kD
M13噬菌体
· M13 Phage (Michael Blaber)Very useful background information about M13: its infection, replication, packing, cloning. If you are new to phag
Generating－stable－cell－lines－in－HEK293
Generating stable cell lines in HEK293Prior to transfection, it is recommended that you linearize your pcDNA gene construct. Linearizing will decrease
Generating－stable－cell－lines－in－HEK293
Generating stable cell lines in HEK293Prior to transfection, it is recommended that you linearize your pcDNA gene construct. Linearizing will decrease
亲和层析实验技术方法
INTRODUCTIONThis protocol describes a method for removing antibodies that react with bacterially encoded proteins by passing a crude preparation of im
报告基因检测的精明之选—LipoD293DNA转染试剂
使用lipoD293转染试剂来转染哺乳动物细胞（比如Hela 、PC3），以期检测荧光酶报告基因，同其他转染试剂相比较，您会得到更多的荧光酶读数，更少的细胞死亡率。使用unsupplemented RPM11640/DMEM替代Opti-MEM培养基来稀释lipoD293及DNA（luciferas
Transient－transfection－into－293T－cells
PurposeTransient transfection into 293T cells is a convenient way to overexpress and obtain both cellular and extracellular (secreted or membrane) pro