TotalProteinExtractionwithTCAAcetone
We describe a procedure allowing extraction of total proteins that performs efficiently with a large variety of plant tissues, based on simultaneous precipitation and denaturation with TCA and 2ME in cold acetone. We also describe protein solubilization prior to IEF, either in classical rod gels or in IPGs, using two different solutions. The procedure is easy to carry out. The major caveats are (1) keep sam......阅读全文
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
Protocol－for－Protein－Extraction－for－proteomics
Protocol for Protein Extraction10 % w/v TCA/ acetone/ 0.07 % v/v -MercaptoethanolPlant cells are rich in compounds that interfere with the 2DE separat
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
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
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
Jacobs:Protocol－Total－Protein－Isolation－Using－RIPA－Lysis－Buffer
MaterialsRIPA buffer (RIPA buffer enables the extraction of cytoplasmic, membrane and nuclear proteins and is compatible with many applications, inclu
蛋白质提取与制备(Protein－Extraction－and－Preparation)2
三、蛋白质提取与制备具体操作方法1、原料的选择早年为了研究的方便，尽量寻找含某种蛋白质丰富的器官从中提取蛋白质。但至目前经常遇到的多是含量低的器官或组织且量也很小，如下丘脑、松果体、细胞膜或内膜等原材料，因而对提取要求更复杂一些。原料的选择主要依据实验目的定。从工业生产角度考虑，注意选含量高、来源丰
蛋白质提取与制备(Protein－Extraction－and－Preparation)1
蛋白质提取与制备蛋白质种类很多，性质上的差异很大，既或是同类蛋白质，因选用材料不同，使用方法差别也很大，且又处于不同的体系中，因此不可能有一个固定的程序适用各类蛋白质的分离。但多数分离工作中的关键部分基本手段还是共同的，大部分蛋白质均可溶于水、稀盐、稀酸或稀碱溶液中，少数与脂类结合的蛋白质溶于乙醇、
蛋白质提取与制备(Protein－Extraction－and－Preparation)6
PH 值：与沉淀蛋白质或酶原理相同，结晶的溶液PH 值一般选择在被结晶的蛋白质或酶的等电点附近，以利于晶体的析出。温度：除少数情况外，通常选择低温条件进行。低温条件对蛋白质和酶不仅溶解度低且不易变性。在中性盐溶液中结晶时，温度可在0℃至室温范围内选择，在有机溶剂中结晶一般要求温度较低。晶种：不易结晶
蛋白质提取与制备(Protein－Extraction－and－Preparation)3
水溶液提取：大部分蛋白质均溶于水、稀盐、稀碱或稀酸溶液中。因此蛋白质的提取一般以水为主。稀盐溶液和缓冲溶液对蛋白质稳定性好、溶度大，也是提取蛋白质的最常用溶剂。盐溶液提取：以盐溶液及缓冲液提取蛋白质进常注意下面几个因素。盐浓度等渗盐溶液尤以0.02～0.05mol/L 磷酸盐缓冲液和碳酸盐缓冲液常用
蛋白质提取与制备(Protein－Extraction－and－Preparation)4
蛋白质提取液中，除包含所需要的蛋白质（或酶）外，还含有其它蛋白质、多糖、脂类、核酸及肽类等杂质。除去的方法有：1）核酸沉淀法该法可用核酸沉淀剂和氯化锰、硫酸鱼精蛋白或链霉素等。必要时也可用脱氧核糖核酸酶除去核酸。即在粗匀浆中加入少量DNase,于4℃保温30～60min，可使DNA 降解为足够小的碎
蛋白质提取与制备(Protein－Extraction－and－Preparation)5
确定沉淀蛋白质所需硫酸铵浓度的方法将少量样品冷却到0～5℃，然后搅拌加入固体硫酸铵粉末，见蛋白质产生沉淀时，离心除去沉淀，分析上清液确定所要蛋白质的浓度，如它仍在溶液中则弃去沉淀，再加更多的硫酸铵于上清液中，直到产生蛋白质沉淀时止。以所要提取的蛋白质在溶液中的浓度对硫酸铵浓度作图，得沉淀曲线，找出蛋
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
酵母准备
Yeast DNA PreparationYeast Genomic Preparation (Gottschling Lab)Rapid method for yeast genomic DNA isolation Yeast DNA Preparation (rapid glass bead
Extraction－of－Chromatin
Dr. William H. Heidcamp, Biology Department, Gustavus Adolphus College Exercise 10.3 - Extraction of ChromatinLEVEL IIMaterials Bovine or porcine bra
LIPID－EXTRACTION
PROCEDURE1. Resuspend tissue/extract in 5 volumes of 1:1 chloroform/methanol by vortexing (to homogeneity or as close as possible)2. Add the same volu
Nuclear－Extraction－Protocol
实验概要The procedure presented below describes a method for extracting nuclear from several cell lines of human origin.主要试剂Hypotonic Buffer Solution20 mM
DNA－isolation－extraction
CTAB TECHNIQUE / Method / Schedule / Protocol FOR DNA ISOLATION / DNA EXTRACTION FROM PLANT LEAF / LEAVES SAMPLES (see also DNA RNA double isolation
Phenol/chloroform－extraction
General InformationPhenol/chloroform extraction is an easy way to remove proteins from your nucleic acid samples and can be carried out in a manner th
Antibody－Purification－using－Protein－A,－Protein－G,－or－Protein－L－Agarose
实验概要This protocol is designed as a quick purification method for antibodies from mammalian sera, ascites, and cell culture supernatants. It should
Antibody－Purification－using－Protein－A,－Protein－G,－or－Protein－L－Agarose
实验概要This protocol is designed as a quick purification method for antibodies from mammalian sera, ascites, and cell culture supernatants主要试剂 Protein
A－Method－for－MicroScale－Isolation－and－Purification－of－Gangliosides
A Method for Micro-Scale Isolation and Purification of GangliosidesStephan Ladisch~Director, Center for Cancer and Transplant Biology, Children's
Cell－and－tissue－lysis－hub
This page should point you to the many different general and lab-specific protocols describing tissue and cell lysis and serve as forum for comparison
Streamlined－DNA－Extraction－Protocol
This method is derived from a procedure developed by Toby Bradshaw and the Poplar Molecular Genetics Cooperative. We have tested the procedure wit
Fungal－Genomic－DNA－Extraction
OverviewHigh throughput of many fungal isolates can be achieved by growing axenic cultures in either (a) 1.5mL microfuge tubes, half full with liquid
Fungal－Genomic－DNA－Extraction
OverviewHigh throughput of many fungal isolates can be achieved by growing axenic cultures in either (a) 1.5mL microfuge tubes, half full with liquid
DNA－EXTRACTION－PROCEDURE－－GENERAL
Grow cells overnight in 500 ml broth medium.Pellet cells by centrifugation, and resuspend in 5 ml 50 mM Tris (pH 8.0), 50 mM EDTA.Freeze cell suspensi
DNA－Extraction－from－Tissue
实验概要DNA extraction from tissue.主要试剂Extraction buffer100 mM Tris-HCl (pH 8.0) 100 mM EDTA (pH 8.0) 100 mM Na-Phosphate (pH 8.0) 1.5 M NaCl1% CTAB
Arabidopsis－RNA－extraction－protocol
1-2 g fresh material, freezer-dried, ground with 0.2g sand (if necessary), and then homogenized with 10ml RNA extraction buffer (see below).Spin at 8,
Fungal－Genomic－DNA－Extraction
实验概要This procedure does not require phenol extraction. The DNA is pure enough for restriction digests, PCR and genomic library construction.High t