在westernblot中loadingbuffer的作用

1、指示剂,方便观察电泳进行的程度;2、密度大,携带你的样本沉到孔的底部;3、保持蛋白线性及携带过量负电荷的状态。 除此之外,里面最重要的是还有巯基乙醇还原剂来让蛋白质充分变性,同时保护-sh基团。......阅读全文

血基因组DNA提取实验——血基因组DNA-试剂盒提取法

血基因组DNA提取可用于:(1)从冻全血、血浆、血清、骨髓、其他体液、淋巴细胞、培养细胞、病毒和线粒体中提取DNA;(2)用于后续测序、遗传信息学等研究。实验方法原理采用特殊的细胞裂解和蛋白去除液(包括蛋白酶K 裂解)从抗凝全血中得到基因组DNA。实验材料抗凝全血试剂、试剂盒血基因组DNA 试剂盒仪

血基因组DNA提取实验

            实验方法原理 采用特殊的细胞裂解和蛋白去除液(包括蛋白酶K 裂解)从抗凝全血中得到基因组DNA。 实验材料 抗凝全血

Crosslinking-chromatin-immunoprecipitation-(XChIP)-protocol

实验概要ChIP is a powerful  tool that allows the specific identification of proteins or histone  modifications to regions of the genome. Chromatin is isol

Comprehensive-identification-of-novel-proteins-and-Nglycosylation-sites六

N-glycosylation modification of proteins has reported to improve the health of living organisms through antibacterial activity [68], antioxidant a

RAT/MOUSE-GROWTH-HO...

实验概要This  Rat/Mouse Growth Hormone ELISA kit is used for the non-radioactive  quantification of Growth Hormone in rat or mouse serum, plasma, tissue  

HP-Tissue-DNA-Maxi-Protocol

实验概要The E.Z.N.A.®  HP Tissue DNA Maxi Kit is designed for efficient recovery of genomic  DNA up to 60 kb in size from up to 2 grams of tissue samples.

Western-blotting样品准备-(一)

实验概要Preparation of  lysis buffers, protease and phosphatase inhibitors, lysate from cell  culture, lysate from tissues, protein concentration, samples

Transcription,-Translation-of-S35Radiolabelled-Protein-and-Binding-to-GST

Prepare the template by linearizing 25ug plasmid DNA at the 3'' end of the insert. Phenol / chloroform extract, ethanol / NaCl precipitate and

Protein-Syntheses-in-Cell-Free-Systems

LEVEL IIIMaterialsSuspension culture of fibroblast cells (1 liter)35 mM Tris-HCl, pH 7.4, 140 mM NaCl (TBS buffer)10 mM Tris-HCl, pH 7.5, 10 mM KCl, a

Cell-Extraction-Protocol

实验概要Primary tissues  are valuable tools for the study of intracellular and extracellular  markers which characterize disease states. We have developed

Automated-Genomic-DNA-Extraction

实验概要This section  provides a general protocol for automated isolation of genomic DNA from  10-20 µl blood samples in a 96-well format using the Charge

DNA纯化实验

实验方法原理 硅胶膜可在高盐条件下结合DNA,又可在低盐条件下与DNA分离。用于清洁目的的含DNA溶液中的引物、单核苷酸、酶、矿物油、盐离子等杂质因为没有与DNA相似的特性,所以被分离开来。实验材料 PCR产物试剂、试剂盒 PCR清洁试剂盒仪器、耗材 96孔DNA制备板96孔深孔板96孔V型底板实验

Human-DC-Enrichment-Kit

实验概要Enrich  untouched Dendritic Cells (DCs) by depleting T cells, B cells,  monocytes/ macrophages, NK cells, erythrocytes and most granulocytes  from

DNA纯化实验

PCR清洁试剂盒纯化法             实验方法原理 硅胶膜可在高盐条件下结合DNA,又可在低盐条件下与DNA分离。用于清洁目的的含DNA溶液中的引物、单核苷酸、酶、矿物油

EZ-96®-M13-Isolation-Vacuum-Manifold-Protocol

实验概要The  E.Z.N.A.™ family of products is an innovative system that radically  simplifies the extraction and purification of nucleic acids from a  vari

DNA纯化实验——PCR清洁试剂盒纯化法

实验方法原理硅胶膜可在高盐条件下结合DNA,又可在低盐条件下与DNA分离。用于清洁目的的含DNA溶液中的引物、单核苷酸、酶、矿物油、盐离子等杂质因为没有与DNA相似的特性,所以被分离开来。 实验材料PCR产物试剂、试剂盒PCR清洁试剂盒仪器、耗材96孔DNA制备板96孔深孔板96孔V型底板实验步骤一

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

DNA-Electrophoresis

What is Electrophoresis?Electrophoresis is a technique used in the laboratory that results in the separation of charged molecules. DNA is a negatively

NuPAGE-Gels

NuPAGE GelsA gel electrophoresis system used for SDS-PAGE protein analysis. The gels are made up of Bis-Tris-HCl (pH 6.4) polyacrylamide and are inten

LselectinPNAd-Interactions-under-Flow-Conditions.

PurposeThe main purpose of the flow chamber assay is to visualize and measure interactions between flowing cells expressing a given adhesion molecule

RNA-gel-electrophoresis

MaterialsDEPC H2ODEPC 0.1% (v/v)q.s. de-ioinized H2O37ºC x1 hr, or r.t. overnightAutoclave.(NaOAc, EDTA and ethidium bromide solutions should also be

蛋白质纯化亲和层析法

若表达蛋白质上含有一段六个His 的片段,而亲和吸附胶上接有镍离子,此蛋白质会特异性地结合到吸着胶体;洗去杂质后可imidazole 洗脱目标蛋白质。(Pharmacia 操作手册, Affinity Chromatography)。仪器设备:亲和层析管柱 (Bio-Rad 731-1550 Pol

流式胞内染色protocol

一、surface marker染色1、收获细胞,0.5-1x10e6/tube,用FACS Buffer 2ml洗涤一次,倾倒后滤纸吸干管口液体。2、加入预先配置好的你需要染的surface marker的抗体混合液(即CD3,CD4,CD8抗体mixture),充分混匀,室温下孵育20分钟。3、

热盐水试验的检查过程

  (1) 样本处理  ① 组织匀浆:称取100-200 mg新鲜组织如肝脏、脑、心肌等,PBS或生理盐水冲洗,洗净血水,滤纸吸干,用剪刀剪为碎块放入小容量玻璃匀浆器内。加入1.0 mL预冷的Lysis Buffer,再加入50ul Reagent A , 0℃冰浴中上下研磨组织20次;有未研磨开的

红细胞裂解的实验方法步骤

IntroductionPrior to using lymphoid tissue cell suspensions for flow cytometric analysis and/or for in vitro functional assays, it is recommended to r

Flow-Cytometric-Analysis-Of-Bcl-Family-members

DescriptionCell Fixation, staining and flow cytometric analysis ProcedureCells (106) were washed twice in FACS buffer (phosphate buffered saline PBS p

Isotype胞内染色有哪些学问?来看看这篇文章怎么说

  对科研党来说,流式细胞术一点都不陌生,它以自己特有的方式从细胞蛋白水平定量检测目标蛋白的表达,并且能get到目标蛋白在各个细胞亚群中的表达,同时在细胞功能上也有很重要的作用,包括细胞凋亡,细胞周期,细胞增殖等等。  流式细胞术以细胞为研究对象,在流式细胞仪的作用下定量检测样品细胞的物理化学特征,

PCR产物回收试剂盒可能出现问题及解决方法

1. 无DNADNA Wash Buffer没有用无水乙醇稀释;2. 低DNA产量样品中加入的Binding Buffer的量太少;请按照使用说明加入足够量的Binding Buffer;若DNA片段长度小于200bp,可加入6倍体积的Binding Buffer;若DNA片段长度大于4kb,则加入

EMSA凝胶迁移-(Electrophoretic-mobility-shift-assay)

实验概要凝胶迁移或电泳迁移率实验(EMSA)是一种研究DNA结合蛋白和其相关的DNA结合序列相互作用的技术,可用于定性和定量分析。实验原理凝胶迁移或电泳迁移率实验(EMSA)是一种研究DNA结合蛋白和其相关的DNA结合序列相互作用的技术,可用于定性和定量分析。这一技术最初用于研究DNA结合蛋白,目前

PCR产物进行凝胶电泳电压、时间各是多少好

先说溴酚蓝,先搞搞清楚,你加的溴酚蓝,还是含有溴酚蓝的loading buffer??loading buffer在管子上有写明用量,比如5X的loading buffer就是5μl上样量中占1μl,也就是1μl loading buffer+4μl待测PCR产物混合上样。电压80-150V都可以用