BasicProteinChemistryTechniques
Coomassie Blue Stain: (for gels) 1) Combine 225 ml Methanol with 225 ml ddH2O. 2) Add 0.5 grams of Coomassie Blue. 3) Just before use, add 50 ml acetic acid to 10% final concentration. 4) Stain for 2 hours. Staining time can be shortened by microwaving; ~50 seconds at medium power. 5) After staining, pour off the stain into a bottle marked Used Stain. Stain can be re-used once, bu......阅读全文
Basic－Protein－Chemistry－Techniques
Coomassie Blue Stain: (for gels) 1) Combine 225 ml Methanol with 225 ml ddH2O. 2) Add 0.5 grams of Coomassie Blue. 3) Just before use, add 50 ml acet
Basic－Protein－Chemistry－Techniques
实验概要Basic Protein Chemistry Techniques实验步骤Coomassie Blue Stain: (for gels) 1) Combine 225 ml Methanol with 225 ml ddH2O. 2) Add 0.5 grams of Coomassi
蛋白质分析技术(Analytical－Techniques－for－Protein)2
二、透析和超滤1.透析（Dialysis）：就是利用蛋白质分子不能通过半透膜（Semipermeable membrane）而小分子可以自由透过的性质，使蛋白质与小分子物质分开。作用：脱盐、无机离子和小分子物质等。透析膜：动物膜、羊皮纸、火棉胶、赛璐玢或其他材料等。2.超滤（ultrafiltrat
蛋白质分析技术(Analytical－Techniques－for－Protein)1
第一节 蛋白质分离纯化与鉴定的基本原理一、蛋白质的理化性质（一）蛋白质的两性电离 pI：当蛋白质溶液处于某一pH时，蛋白质解离成正、负离子的趋势相等，即成为兼性离子，净电荷为0，此时的溶液的pH称为~。 体内大多数蛋白质：pI≈pH 5.0。在pH 7.4，大多数蛋白质解离成阴离子。少数蛋白
蛋白质分析技术(Analytical－Techniques－for－Protein)3
六、SDS-PAGE1.SDS及SDS-PAGE（1）SDS：十二烷基硫酸钠（sodium decyl sulfate，SDS），一种阴离子去污剂，它能以一定的比例和蛋白质结合，形成一种SDS—protein的复合物。（2）SDS- PAGE：具有SDS的PAGE，分离SDS—protein复合物，
Aseptic－Techniques
Aseptic techniques ensure that all cell culture procedures are performed to a standard that will prevent contamination from bacteria, fungi, mycoplasm
Basic－PCR
实验概要The following basic protocol serves as a general guideline and a starting point for any PCR amplification. Optimal reaction conditions (incubati
Basic－Mechanisms－of－SUMOylation
Like ubiquitin, SUMO (small ubiquitin-related modifier) proteins are small protein tags that are conjugated to proteins to modify their function. The
Basic－ELISA－Protocol
实验概要 There are many different types of ELISAs, which can detect the presence of protein in serum or supernatent. One of the most common typ
Bleeding－and－intravenous－techniques－in－pigs
The ear veinsThe marginal ear veins are the only veins that are easily visible on pigs of any size. Usually there are three prominent veins. The later
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
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
什么是－Flow－Chemistry－？
flow chemistry 一般译作 流动化学。本意指在连续流动的系统中完成化学反应，不同于批次式反应。其实流动过程中完成化学转化的生产方式并不独特，早已广泛用于石化工业和 合成氨、硫酸、盐酸、硝酸等大化工领域。真正让流动化学独具魅力的是 小型化 和 智能化。流动化学不仅仅单纯指物料的流动，而是结
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
Basic－Method－for－Indirect－Immunofluorescence－Labeling
Basic Method for Indirect Immunofluorescence LabelingBackgroundThis is the method for indirect immunofluorescence labeling; that is, the antibodies do
Basic－Fluorescent－in－situ－Hybridization－(FISH)
实验概要Fluorescence in situ hybridization method is a kind of physical map drawing method, use fluorescent element mark probe, to detect probe and spli
筛分仪－AS－200－basic简介
德国RETSCH（莱驰）的AS200系列分析筛分仪广泛应用于科研与开发，原材料、半成品和成品的质量控制及生产监控等领域。其可控电磁驱动能为每一产品提供最优的配置。尖锐样品也能在短时间内过筛。AS200basic具有RETSCH 产品一贯的可靠性和质量保证。该机型采用模拟制式下的振幅和筛分时间设置。所
Comprehensive－identification－of－novel－proteins－and－Nglycosylation－sites一
Comprehensive identification of novel proteins and N-glycosylation sites in royal jellyLan Zhang1,2†, Bin Han1†, Rongli Li1, Xiaoshan Lu1,3, Aiying Ni
Nature－Chemistry——抗炎“工厂”
脂质介质是一类在炎症过程中起重要作用的分子。日前，来自美国匹兹堡大学和俄罗斯莫斯科国立大学的研究人员展开合作，发现了脂质介质的生成机制。相关论文发表在《自然化学》（Nature Chemistry）杂志上。 线粒体被称作为“细胞的能量工厂”，在这一细胞器中各种物质氧化导致生成三磷酸腺苷
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
TEM－Specimen－Preparation：Preparative－Techniques－for－the－TEM
For routine transmission electron microscopy (TEM), it is generally accepted that specimens should be thin, dry and contain molecules which diffract e
Azalea－Phylogeny－Reconstructed－by－Means－of－Molecular－Techniques
Plants belonging to the Rhododendron subgenera Pentanthera (deciduous) and Tsutsusi and Azaleastrum (evergreen) are called azaleas. Concerning their m
Bleeding－and－intravenous－techniques－in－pigs2
Bleeding techniques for smaller pigsThis picture depicts the venous drainage in the neck of piglets.A: the cephalic vein. This drains into:B: the exte
Radioiodination－of－protein
Radioiodination (by Jun Takagi,6/16/2000)Purpose and backgroundsPrinciple of radioiodinationAddition of oxidizing reagents (such as chloramine-T or pe
Protein－Electrophoresis
DefinitionAmino acids, nucleotides, polypeptides, and other compounds in a colloidal state can be separated by the application of external voltages wh
Protein－Crystallization
Background:Proteins, like many molecules, can be prompted to form crystals when placed in the appropriate conditions. In order to crystallize a protei
Basic－procedures－for－bacteria－culture2
E. Elution of DNA fragments from agaroseDNA fragments are eluted from low-melting temperature agarose gels using an unpublished procedure first develo
Basic－procedures－for－bacteria－culture1
A. Phenol extraction of DNA samplesPhenol extraction is a common technique used to purify a DNA sample (1). Typically, an equal volume of TE-saturated
The－Determination－of－Proteinprotein－Interactions－by－the－Matingbased－...
Dynamic and reversible protein–protein interactions have a pivotal function in all living cells. For instance, protein–protein interactions are in