MappingProteinDistributionsonPolyteneChromosomesbyImmunostaining2
12. Hold the salivary glands at the common duct with tweezers.Transfer the glands to a drop of fixing solution on a siliconizedcoverslip. 13. Incubate the glands for 10-20 min, occasionally stirring with the tip of the tweezers to ensure homogeneous fixation. The fixation time is an important parameter and needs to be adjusted for every antigen tested. Aim for the sho......阅读全文
Protein－detection－onto－PVDF－membranes
2-D PAGE and electroblotting onto PVDF membranes have become widely used techniques for the characterization of proteins. Recent improvements have all
Measurement－of－Green－Fluorescent－Protein－Expression
ReagentsCells to be studied expressing green fluorescent protein (GFP). Note that the same cell type without GFP is needed as control.Hoechst 33342 s
Protein－concentration－of－Laemmli－gel－samples
Protein concentration of Laemmli gel samplesTo 10 µl boiled lysate (in Laemmli sample buffer) add 40µl water + 50µl 50% TCA. Ppt. 10 min. on ice. Spin
COMPARISION－OF－DIFFERENT－PROTEIN－DETERMINATION－METHODS
COMPARISION OF DIFFERENT PROTEIN DETERMINATION METHODSCompanyMethodDetection RangeApplications -CompatibilityAssay protocolPrecautions-InterferencesA
Platelet－Amyloid－Precursor－Protein－Pathway
The amyloid -beta peptide (Ab), a proteolytic fragment of amyloid precursor protein (APP), is the major componenet of senile plaques, the hallmark of
Eccles:Protein－Lysates－from－Tissue
Cell Lysis Buffer5mL 0.1M Tris HCl pH 8 (10mM)0.44g NaCl (150mM)0.02g EDTA (1mM)0.5mL nonidet P40 (1% w/v)0.05g SDS (0.1% w/v)Make up to 50mL with MQH
蛋白质（protein）概述
蛋白质是一种复杂的有机化合物，旧称“朊”。蛋白质这一概念最早是由瑞典化学家永斯·贝采利乌斯于1838年提出，但当时人们对于蛋白质在机体中的核心作用并不了解。1926年，詹姆斯·B·萨姆纳揭示尿素酶是蛋白质，首次证明了酶是蛋白质。第一个被测序的抗原肽蛋白质是胰岛素，由弗雷德里克·桑格完成，他也因此获得
Western－杂交
Western 杂交（主要内容如下）Preparing of Protein LysatesWestern BlottingFar Western BlottingSemi Dry BlottingStripping MembranesTrouble Shooting and OthersPrepa
扫描电镜拍的mapping用什么软件看
自动拼图软件。用户个人使用扫描电镜进行拍摄的mapping，使用自动拼图软件进行查看即可。扫描电镜介于透射电镜和光学显微镜之间的一种微观性貌观察手段。
eds的mapping分析图亮度代表什么意思
成功。软件官方显示，eds的mapping分析图亮度代表成功意思，EDS能谱仪是一种分析物质元素的仪器，常与扫描电镜或者透射电镜联用，在真空室下用电子束轰击样品表面，激发物质发射出特征x射线。
Total－Protein－Extraction－with－TCAAcetone
We describe a procedure allowing extraction of total proteins that performs efficiently with a large variety of plant tissues, based on simultaneo
Size－and－Shape－of－Protein－Molecules3
The Kirkwood/Bloomfield CalculationThe understanding of how protein shape affects hydrodynamics is elegantly extended by an analysis originally develo
Size－and－Shape－of－Protein－Molecules5
Hydrodynamic Analysis and EM Applied to Large Multisubunit ComplexesThe text box above showed the application of the Siegel–Monte analysis to SMC prot
蛋白浓缩（protein－concentration）基本方法
蛋白浓缩方法基本有：丙酮沉淀法；免疫沉淀法；三氯醋酸沉淀法；硫酸铵沉淀法；（低温）有机溶剂沉淀法；聚乙二醇沉淀法；超滤法；透析法；离子交换层析和冷冻干燥法…… 1.丙酮沉淀法；三氯醋酸沉淀法 试验要求的仪器简单，但是常常导致蛋白质变性。 2.免疫沉淀法：得有特异性抗体！ 3.硫酸铵沉淀法
Purification－of－Antiserum－or－Ascites－by－Protein－A/G－Chromatography
1、Required Materials and Equipment(1) Protein A or G agarose gel column (10 ml or 5 ml of packed beads; see guidelines below for choice of protein A o
Size－and－Shape－of－Protein－Molecules2
The sedimentation coefficient of a protein is a measure of how fast it moves through the gradient. Increasing the mass of the protein will increase it
Protein－extraction－from－whole－tissues－for－IEF
Modified from that of Jay Thelen - University of Missouri-ColumbiaPhenol extraction followed by methanolic ammonium acetate precipitation - an effecti
Thrombin－Cleavage－of－GSTFusion－protein
INTRODUCTIONIn many cases the cleavage can be performed using the free intact fusion, or in same cases with the fusion protein bound to a matrix. The
Protein－L树脂填料应用说明
Protein L也是一种免疫球蛋白结合蛋白，来源于从消化链球菌马格努斯。不同于Protein A和Protein G，Protein L结合的是抗体分子的轻链。由于没有重链的参与，比起Protein A和Protein G，Protein L可以结合更多种类型的抗体。Protein L可以
UV－Absorbance－(280－nm)－－–－Protein－Determination
UV Absorbance (280 nm) – Protein Determination Simple and quick method to accurately quantitate total protein in purified material or approximately q
troponin蛋白纯化－Protein－purification:－troponins
Overview TROPONINS The calcium-dependent regulatory protein complex located on the thin actin filaments of muscle comprises of TnC (17.8 kDa), TnI (2
Size－and－Shape－of－Protein－Molecules1
Size and Shape of Protein Molecules at the Nanometer Level Determined by Sedimentation, Gel Filtration, and Electron MicroscopyAn important part of ch
Size－and－Shape－of－Protein－Molecules4
Determining the Molecular Weight of a Protein Molecule—Combining S and R s à la Siegel and MonteWith the completion of multiple genomes and increasing
Size－and－Shape－of－Protein－Molecules5
Hydrodynamic Analysis and EM Applied to Large Multisubunit ComplexesThe text box above showed the application of the Siegel–Monte analysis to SMC prot
蛋白浓缩(protein－concentration)方法详解
1，透析袋浓缩法利用透析袋浓缩蛋白质溶液是应用最广的一种。将要浓缩的蛋白溶液放入透析袋（无透析袋可用玻璃纸代替），结扎，把高分子（6000－12000）聚合物如聚乙二醇（碳蜡）、聚乙烯吡咯、烷酮等或蔗糖撒在透析袋外即可。也可将吸水剂配成30%－40%浓度的溶液，将装有蛋白液的透析袋放入即可。吸水剂用
蛋白质抽取(protein－extraction)
蛋白质在细菌中表现后，以反复的冷冻-解冻方法打破细胞，再用硫酸铵把蛋白质沉淀下来，此步骤可以去除大部份核酸、多醣、脂质等杂物。仪器用具：恒温震荡培养箱37℃；高速冷冻离心机及离心管 （使用20,000 rpm离心陀）使用高速离心机要注意： 离心机及离心陀的温度要预冷完全，相对位置的两只离心管要平衡好
Eccles:Protein－Lysates－from－Cells－in－Culture
Cell Lysis Buffer5mL 0.1M Tris HCl pH 8 (10mM)0.44g NaCl (150mM)0.02g EDTA (1mM)0.5mL nonidet P40 (1% w/v)0.05g SDS (0.1% w/v)Make up to 50mL with MQH
SMCHD基因编码的功能和结构描述
该基因编码一种蛋白质，该蛋白质包含在SMC（染色体结构维持）蛋白质家族成员中发现的铰链区域。This gene encodes a protein which contains a hinge region domain found in members of the SMC (structural
MSH4基因编码功能及结构描述
这个基因编码一个dna错配修复muts家族的成员。该成员是一种减数分裂特异性蛋白质，不参与DNA错配纠正，但在减数分裂I时需要互惠重组和同源染色体的适当分离。该蛋白和msh5形成一个异二聚体，该异二聚体与Holliday连接点及其发育前体特异结合，从而激发adp-atp交换，稳定了减数分裂双链断裂修
MSH4基因突变与药物因子介绍
这个基因编码一个dna错配修复muts家族的成员。该成员是一种减数分裂特异性蛋白质，不参与DNA错配纠正，但在减数分裂I时需要互惠重组和同源染色体的适当分离。该蛋白和msh5形成一个异二聚体，该异二聚体与Holliday连接点及其发育前体特异结合，从而激发adp-atp交换，稳定了减数分裂双链断裂修