RNA酶保护试验((RNaseProtectionAssay,RPA)的优缺点
RNA酶保护试验((RNase Protection Assay,RPA)是通过液相杂交的方式,用反义RNA探针与样品杂交，以检测RNA表达的技术。与Northern杂交和RT-PCR比较，RPA有以下几个优点：1． 检测灵敏度比Northern杂交高。由于Northern杂交步骤中转膜和洗膜都将造成样品和探针的损失，使灵敏度下降，而RPA将所有杂交体系进行电泳，故损失小，提高了灵敏度。2． 由于PCR扩增过程中效率不均一和反应“平台”问题，基于PCR产物量进行分析所得数据的可靠性将下降，而RPA没有扩增过程，因此，分析的数据真实性较高。3． 由于与反义RNA探针杂交的样品RNA仅为该RNA分子的部分片段，因此，部分降解的RNA样品仍可进行分析。4． 步骤较少，耗时短。与Northern杂交相比，省去了转膜和洗膜的过程。5． RNA-RNA杂交体稳定性高，无探针自身复性问题，无须封闭。6． 一个杂交体系中可同时进行多个探针杂交，......阅读全文
The－ribonuclease－protection－assay－(RPA)
The ribonuclease protection assay (RPA) is a highly sensitive and specific method for the detection of mRNA species. The assay was made possible by th
Roche公司的RNase－Protection－Assay－(RPA)－protocol
Roche公司的RNase Protection Assay (RPA) Using DIG-Labeled RNA Probes下载网址：http://www.roche-applied-science.com/PROD_INF/BIOCHEMI/no1_03/PDF/p22_23.pdf还有一份
RNA酶保护实验(RNase－Protection－Assay,RPA)简介
简介：RNA酶保护试验(RNase Protection Assay，RPA)是通过液相杂交的方式,用反义RNA探针与样品杂交，以检测RNA表达的技术。1. 原理：双链RNA（杂交的）能够抵抗RNA酶的降解。2. 应用：检测RNA表达3. 与Northern杂交和RT-PCR比较，RPA有以下几个优
RNA酶保护实验(RNase－Protection－Assay,RPA)简介
简介： RNA酶保护试验(RNase Protection Assay，RPA)是通过液相杂交的方式,用反义RNA探针与样品杂交，以检测RNA表达的技术。 1. 原理：双链RNA（杂交的）能够抵抗RNA酶的降解。 2. 应用：检测RNA表达 3. 与Northern杂交和RT-PCR比较
RNA酶保护试验((RNase－Protection－Assay,RPA)简介
RNA酶保护试验((RNase Protection Assay,RPA)是通过液相杂交的方式,用反义RNA探针与样品杂交，以检测RNA表达的技术。1。原理：双链RNA（杂交的）能够抵抗RNA酶的降解。2。应用：检测RNA表达3。与Northern杂交和RT-PCR比较，RPA有以下几个优点：1．
RNA酶保护试验((RNase－Protection－Assay,RPA)方法
一、试剂准备1． GACU POOL：取100mM ATP、CTP、GTP各2.78μl、100mM UTP 0.06μl，加DEPC H2O至100μl。2. 杂交缓冲液IPES 0.134g、0.5M EDTA（pH8.0）20μl、5M NaCl 0.8ml、甲酰胺8ml，加DEPC H2O至
RNA酶保护试验((RNase－Protection－Assay,RPA)的优缺点
RNA酶保护试验((RNase Protection Assay,RPA)是通过液相杂交的方式,用反义RNA探针与样品杂交，以检测RNA表达的技术。与Northern杂交和RT-PCR比较，RPA有以下几个优点：1． 检测灵敏度比Northern杂交高。由于Northern杂交步骤中转膜和洗膜都将造
Motility－Assay
DescriptionVarious phenotypic characteristics are requiredfor a cancer cell to successfully complete the metastaticcascade. Among these, acquisition o
DGK－Assay
Buffers:- 2X buffer10 ml 0.5 M imidazol, pH 6.60.21 g LiCl1.25 ml 1 M MgCl21.0 ml 0.1 M EGTA, pH 6.6--> Bring volume up to 50 ml with distilled water.
Protease－assay
实验概要 In certain fruits, such as pineapples and mangoes, the flesh contains protein-digesting enzymes (proteases). These may play a part in
Chemotaxis－Assay
PurposeThe purpose of a chemotaxis assay is to determine whether your protein or small molecule of interest has chemotactic activity on a specific cel
Pectinase－assay
Pectinases are actually a mixture of enzymes, which, along with others such as cellulase, are widely used in the fruit juice industry where they are w
Protease－assay
In certain fruits, such as pineapples and mangoes, the flesh contains protein-digesting enzymes (proteases). These may play a part in helping to softe
Bradford－Assay
Bradford AssayThe bradford dye-binding assay is a colorimetric assay for measuring total protein concentration. It involves the binding of Coomassie B
MTT－Assay
This procedure is for cells in 96 well plates, if larger plates are used then adjust volumes accordingly.1 Make a solution of 5mg/ml MTT dissolved in
Phosphate－Assay
1. Make standards using sodium phosphate at the following uM concentrations: 0, 2, 5, 7, 10, 20, 40, 60, and 80. Use the screw top glass tubes.2. Dry
TUNEL－assay
PROTOCOL:•Deparaffinize and rehydrate slides:3 x 3´ Xylene3 x 2´ 100% ethanol1 x 2´ 95%, 80%, 70% ethanol (each)1 x 5´ 1x PBS•Microwave antigen retrie
Bradford－Assay
The bradford dye-binding assay is a colorimetric assay for measuring total protein concentration. It involves the binding of Coomassie Brilliant blue
Aspartate－Assay
实验概要The Aspartate Assay Kit provides a simple, convenient assay to measure aspartate in a variety of samples. In the assay, aspartate is converted
Polygalacturonase－assay
This enzyme is famous for being involved in the development of the GMO tomatoes (more information from the link at the foot of this page). The cells o
DNA－methyltransferase－Assay
Methylated CpG island Amplification Protocol written by Minoru Toyota2. Materials2.1. MCARestriction enzymes SmaI, XmaIT4 DNA ligaseTaq DNA polymerase
Noble－Agar－Assay
DescriptionCancer cells do not show anchorage and contact inhibition of growth. To assess the anchorage and contact independent growth of cells, noble
Leaf－GUS－Assay
一、实验试剂 GUS Buffer (500 ml) 2.0478 g Na2HPO4 1.2688 g NaH2PO4 (=50 mM NaPi pH7.0) 10 ml 0.5 M EDTA (=10 mM) 0.5 g Triton X-100 0.5 g N-L
Bradford－protein－assay
Bradford protein assayConsiderations for useThe Bradford assay is very fast and uses about the same amount of protein as the Lowry assay. It is fairly
cell－proliferation－assay
cell proliferation assaybefore start:thaw cells from liquid nitrogen, grow in 75cc flask (T75) in Fischer's medium MM (maintenance medium) until c
Assay－of－Phospholipase－A－Activity
Phospholipases of the A type constitute a large family of esterases that catalyze the hydrolysis of the fatty acid ester bonds in phospholipids an
Glucosamine－Rapid－Assay
Glucosamine Rapid AssayMRTHOD:Place sample (containing 0.5 - 10 µg GlcN) in a Pyrex screw capped tube.Add HCl to a final concentration of 2N and a fin
ELISA－Inhibition－Assay
ELISA Inhibition AssaySensitize a 96-well microtiter plate with purified antigen.Prepare a solution of the purified antigen of interest in phosphate b
Cell－Viability－Assay
Dye exclusiona cell suspension is mixed with trypan blue and examined by low-power microscopyMaterialscellsPBSM3hemocytometer0.4 % trypan blue in PBSm
Protein－Assay－(Spectrophotometer)
Protein Assay (Spectrophotometer)Use BSA (bovine serum albumin) 1mg/ml stock solution (1ml Eppendorf tubes) for standard curve.Place 0, 2, 5, 10, 15,