CulturingHEK293Cells
ReagentsMedium:500 ml Dulbecco’s Modified Eagle Medium (Gibco #41966-029)55 ml FCS (10 %)2.8 ml Gentamycin Solution (Sigma G-1272, 10 ml))TrypsinTrypsin (10x) lyophilised (Gibco 25095-019)SolutionVersene 1:5000 (Gibco 15040-033, 100 ml)Take 2 bottles (2X100 ml) of Versene and pipet 10 ml of each bottle into the bottle with the lyophilised Trypsin to redisolve it. Then redistribute 10 ml of the Trypsin solution back i......阅读全文
Culturing－HEK－293－Cells
ReagentsMedium:500 ml Dulbecco’s Modified Eagle Medium (Gibco #41966-029)55 ml FCS (10 %)2.8 ml Gentamycin Solution (Sigma G-1272, 10 ml))TrypsinTryps
Routine－Culturing－of－ES－Cells
Cell are normally passaged every 2-3 days, this is important to avoid differentiation.Signs of differentiation are:-i) colonies are surrounded by flat
Culturing－Human－Neural－Stem－Cells
实验概要Neural stem cells (NSC) are valuable resources because of their ability to differentiate into neurons and glial cells with applications in neur
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
Culturing－Rat－Fetal－Neural－Stem－Cells
实验概要Rat neural stem cells (NSCs) serve as a well-established model for investigating human brain development, disease processes, and treatment stra
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
磷酸钙法转染HEK293T细胞
磷酸钙法 实验方法原理 常规转染技术可分为两大类，一类是瞬时转染，一类是稳定转染（永久转染）。前者外源DNA/RNA不整合到宿主染色体中，因此一个宿主细胞中可
磷酸钙法转染HEK293T细胞
磷酸钙法转染HEK293T细胞可应用于：（1）研究转染哺乳动物细胞的机理；（2）基因工程。实验方法原理常规转染技术可分为两大类，一类是瞬时转染，一类是稳定转染（永久转染）。前者外源DNA/RNA不整合到宿主染色体中，因此一个宿主细胞中可存在多个拷贝数，产生高水平的表达，但通常只持续几天，多用于启动子
磷酸钙法转染HEK293T细胞介绍
一.试剂配制无菌水ddw： 高温灭菌； 分装；2XHBS： 280mM NaCl10mM KCl1.5 mM Na2HPO412 mM glucose50 mM HEPESAdjust the pH , every 0.05pH from 7.00 to 7.45 using 10N NaOH, t
Procedure－for－Culturing－BG01V－Human－Embryonic－Stem－Cells
IntroductionHuman embryonic stem (hES) cells are pluripotent stem cells derived from pre-implantation embryos that can be maintained and expanded in a
CO2恒温摇床解决人胚肾－293－(HEK293)－细胞结团问题（一）
人胚肾 293 (HEK293) 细胞在重组蛋白表达中是最常见的宿主细胞。 这类细胞能够表达大量的膜蛋白，如 G 蛋白偶联受体 (GPCR) ，是无法在最常见的生物制药生产宿主，如：中国仓鼠卵巢 (CHO) 细胞中作表达。 HEK293 虽然是蛋白表达的极好宿主，然而 HEK293 细胞
CO2恒温摇床解决人胚肾－293－(HEK293)－细胞结团问题（二）
Lysate preparation and western blottingProtein lysates were created by harvesting the cells from confluent T-flasks or from suspension cultures at h
使用CO2恒温摇床解决人胚肾－293－(HEK293)－细胞结团问题
人胚肾 293 (HEK293) 细胞在重组蛋白表达中是最常见的宿主细胞。 这类细胞能够表达大量的膜蛋白，如 G 蛋白偶联受体 (GPCR) ，是无法在最常见的生物制药生产宿主，如：中国仓鼠卵巢 (CHO) 细胞中作表达。 HEK293 虽然是蛋白表达的极好宿主，然而 HEK293 细胞
Growth,－Maintenance－and－Transfection－of－Suspension－Adapted－293EBNA－cells
ProcedureI. INTRODUCTIONThe 293 EBNA cell line is established from primary embryonal human kidney cells transformed with sheared human adenovirus type
Culturing－BG01V－Human－Embryonic－Stem－Cells－with－Mouse－Embryonic－Fibroblast
If culturing in the absence of a feeder cell layer is desired, human embryonic stem (hES) cells can be maintained using Mouse or Human-Conditioned Med
Production－of－neuronpreferential－lentiviral－vectors
实验概要Adenoviral vectors widely used to transfer foreign genes into neuronal cells possess tropism for glial cells and are toxic to infected cells.
选择GenJetTM，LipoD293TM－－PolyJetTMDNA转染试剂稀释溶液小技巧
选择何种稀释液稀释DNA及转染试剂，对于制备有效的转染复合物至关重要。除了温度，孵育时间外，稀释液的性质对于制备高效的转染复合物亦非常重要，同样影响DNA转染效率。根据我们的实验数据，使用合适的稀释液得到的转染效率是使用错误稀释液转染效率的至少50倍。更为重要的是，实验者总是忽视稀释液的重要性，甚至
针对特定细胞选择更有效的实验步骤
GenJet Ver.II，LipoD293及PolyJet针对哺乳动物细胞的DNA体外转染试剂，均为您提供两种不同的转染步骤——一般步骤及高级步骤，这两种步骤分别针对不同的哺乳动物细胞。高级步骤主要针对难转的哺乳动物细胞，例如：MDCK，MDA-MB231，Caco-2等细胞。使用一般的转染步
Transfection－with－PEI
实验概要Use PEI (Linear 25 kDa Reagent) to transfect in HEK293T cells.主要试剂PEI is polyethyleimine, a 25 kDa linear from Polysciences Inc. Make up solutio
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
Culturing－Mouse－Embryonic－Fibroblasts
MaterialsTrypsin (Gibco 25200-023)3T3 Medium: 500 mL DME (Invitrogen) + 50 mL FBS (Hyclone) + 5 mL 100x Pen/Strep2x Freezing Medium: 3T3 Medium + 20%
Basic－Methods－of－Culturing－Drosophila
实验概要Basic Methods of Culturing Drosophila实验步骤Stockkeeping1. Mechanics Most stocks can be successfully cultured by periodic mass transfer of a
RNA甲基化测序
1、NSUN2影响m5C在HEK293细胞中整体分布情况NSUN2被报道是RNA甲基转移酶，能使tRNAs和mRNA发生m5C甲基化修饰。为了探究NSUN2对HEK293细胞mRNA m5C甲基化修饰的影响。作者利用CRISP/Cas9技术敲减NSUN2（NSUN2-/-HEK293细胞）后进行
荧光素酶检测（Luciferase－assay）
Introduction Luciferase can be used as a reporter gene to measure the activity of promoters, and/or the transfection efficiency. Aims You will be prov
如何养293、293T系列的细胞
将细胞培养瓶竖立放置，吸走培养基，如果培养基中的脱落细胞较多，说明细胞现在很容易脱落，只要加入1ml的PBS+EDTA(0.02%)，来回轻微晃动培养瓶直到细胞完全脱落，加入10mlMEM，混匀，不能吹打，分装2瓶。如果细胞没长满就脱落，则只需加入5mlMEM，不分装。如果培养瓶中的细胞贴壁较牢固，
研究揭示氨基肽酶N促进PDCoV入侵细胞及复制的分子机制
近日，中国农业科学院哈尔滨兽医研究所猪消化道传染病创新团队和猪免疫抑制病创新团队共同研究发现猪氨基肽酶N（pAPN）通过内吞途径促进猪德尔塔冠状病毒入侵细胞并完成复制周期,阐明了猪氨基肽酶N促进猪德尔塔冠状病毒入侵细胞及复制的分子机制。相关研究成果在线发表在《病毒学杂志（Journal of V
遗传发育所利用环状RNA开发出基于Cas12a的引导编辑器
基于CRISPR-Cas9的引导编辑器（prime editors，PEs）可同时实现任意碱基类型的精准替换，以及小片段的精准插入、替换和删除。目前，几乎所有的引导编辑器均是依赖于Cas9蛋白开发而成，但Cas9蛋白存在尺寸较大、脱靶效应高和受限于G/C-rich区域编辑的缺点，限制了引导编辑器
293fectin™－Transfection
实验概要293fectin™ is a proprietary, cationic lipid-based formulation for transfection of DNA into eukaryotic cells. 293fectin™ is optimized for transfe
Differentiate－ES－cells－into－glial－cells－and－neurons
Day -1: Pass ES cells at normal density on gelatinized plate to free the culture of contamination fibroblast cells.___________________Day 1: Trypsiniz