MakingRNAprobesforinsituhybridization
Make DNA templates via PCRDay 1It's preferable to start with constructs that contain RNA polymerase start sites (T3, T7, or SP6) which allow use of primers outside the start-point. This gives the enzyme some docking space, improving transcription efficiency. If this is not possible, use extended primers with RNA-polymerase start sites in their 5' tails.Purify PCR products with QiaQuick PCR purification kit an......阅读全文
Making－RNA－probes－for－in－situ－hybridization
Make DNA templates via PCRDay 1It's preferable to start with constructs that contain RNA polymerase start sites (T3, T7, or SP6) which allow use o
In－situ－hybridization
Note: Although it is possible to perform in situ hybridization on bleached embryos, it appears to reduced the strength of the signal. For best results
Fluorescence－In－Situ－Hybridization－using－TSA™
实验概要This protocol describes steps for fluorescent in situ hybridization (FISH) to Drosophila embryos using Tyramide Signal Amplification (TSA™), and
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
In－Situ－Hybridization－to－Somatic－Chromosomes－in－Drosophila
In Situ Hybridization to Somatic Chromosomes in DrosophilaAbby F. DernburgINTRODUCTIONIn situ hybridization was originally developed as a technique fo
细胞遗传学——原位杂交(ISH)
In Situ Hybridization· In Situ Hybridization (jsmith1@po-box.mcgill.ca)In situ hybridization, as the name suggests, is a method of localizing,
DNA微序列技术
· Protocols for Making Drosophila Arrays (Stanford U.)Detailed protocol for making arrays including PCR Amplification of cDNAs for Printing,
荧光原位杂交（Fluorescence－in－situ－hybridization,FISH）
实验原理荧光原位杂交（Fluorescence in situ hybridization FISH）是一门新兴的分子细胞遗传学技术，是20世纪80年代末期在原有的放射性原位杂交技术的基础上发展起来的一种非放射性原位杂交技术。目前这项技术已经广泛应用于动植物基因组结构研究、染色体精细结构变异分析、病
荧光原位杂交（Fluorescence－in－situ－hybridization,FISH）原理
2）标本变性①将制备好的染色体玻片标本于 50oC培养箱中烤片2～3h。（经Giemsa染色的标本需预先在固定液中退色后再烤片）。②取出玻片标本，将其浸在70～75oC的体积分数70％甲酰胺/2×SSC的变性液中变性2～3min。③立即按顺序将标本经体积分数70％、体积分数90％和体积分数100％冰
荧光原位杂交（Fluorescence－in－situ－hybridization,FISH）（图）
实验原理荧光原位杂交（Fluorescence in situ hybridization FISH）是一门新兴的分子细胞遗传学技术，是20世纪80年代末期在原有的放射性原位杂交技术的基础上发展起来的一种非放射性原位杂交技术。目前这项技术已经广泛应用于动植物基因组结构研究、染色体精细结构变异分析、病
双重和多重原位杂交(hybridization－in－situ)技术
为了在同一标本上或同一细胞内同时检测是否存在两种或两种以上的靶核酸序列。可应用双重或多重原位杂交技术．即以两种或多种标记探针与靶核酸杂交。然后利用不同的检测手段分别显示各种靶核酸的存在和分布。该技术与免疫组织化学技术中的双重或多重标记相似，除了探针本身的特异性外，对结果的干扰主要来自标记物及检测试剂
cDNA
· cDNA Synthesis (Crawford Lab)mRNA can be converted into DNA (copy DNA, cDNA) by annealing oligo-dT to the 3' poly-A tail that occurs on
原位杂交(In－Situ－Hybridization,ISH)与荧光原位杂交（三）
（1）DAN斑点杂交①先将膜在水中浸湿，再放到15×SSC中。②将DNA样品溶于水或TE，煮沸5min，冰中速冷。③用铅笔在滤膜上标好位置，将DNA点样于膜上。每个样品一般点50μl（2～10μg DNA）。④将膜烘干，密封保存备用。（2）RNA斑点杂交：与上法类似，每个样品至多加10μg总RNA（
原位杂交(In－Situ－Hybridization,ISH)与荧光原位杂交（一）
是用标记的核酸探针，使用非放射检测系统或放射自显影系统，在组织切片、细胞涂片及染色体制片上等对核酸进行定性、定位和相对定量研究的一种分子生物学方法，具有灵敏、特异、直观等优点。已逐渐成为分子生物学和分子病理学的常见技术之一，广泛应用于肿瘤生物学、血液病理学、遗传、微生物学、细胞和分子生物学、神经内分
原位杂交(In－Situ－Hybridization,ISH)与荧光原位杂交（五）
⑦60伏电泳过夜。 ⑧取出凝胶，水中浸泡2次，每次5min。 ⑨室温下将胶浸到50mmol/L NaOH和10mmol/l NaCl中45min，水解高分子RNA，以增强转印。 ⑩室温下将胶浸到0.1mol/L Tris·HCl (Ph7.5)中45min，使胶中和。
原位杂交(In－Situ－Hybridization,ISH)与荧光原位杂交（四）
（2）硝酸纤维素滤膜吸印。①将胶切成合适大小，切去右上角作为记号。②将胶放进盛有变性缓冲液（1.5mol/l NaCl, 0.5mol/L NaOH）的盘中轻摇动15min。③换到中和缓冲液（1mol/L Tris·HCl , pH8.0, 1.5mol/L NaCl）中轻摇动30min。④裁一张硝
原位杂交(In－Situ－Hybridization,ISH)与荧光原位杂交（二）
5．洗膜 取出塑料袋，用剪刀剪开，小心取出滤膜，立即浸入盛有2×SSC和 0.5%SDS溶液的盘中，室温下漂洗5min。再将滤膜移入2×SSC和0.1%SDS溶液中，室温下洗涤15min（轻轻摇动）。然后将滤膜移入 0.1×SSC和0.5%SDS溶液中；68℃轻轻摇动保温2h，更换缓冲液后继
原位杂交(In－Situ－Hybridization,ISH)与荧光原位杂交（六）
夹心杂交法可用滤膜和小珠固定吸附探针，使用小珠可更好地进行标准化试验和更容易对小量样品进行操作。Dahlen 等利用微孔板进行夹心杂交，可同时进行大量样品检测，他们先吸取DNA探针加到凹板中，然后用紫外线照射使其固定到塑料板上。用微孔板进行夹心杂交还可直接用于PCR技术。应用光敏生物标记探针
RNA－FISH－on－cultured－cells－in－interphase
IntroductionFluorescence in situ hybridization (FISH) has become a widely used method in genome and molecular genetic studies. The technique is highly
Southen杂交
Southern杂交One important thing for transfer:the weight of the object resting on top of the blotting apparatus should not exceed the weight equal to a 5
Preparation－of－nucleic－acid－probes
Preparation of nucleic acid probesIn standard nucleic acid hybridization assays the probe is labeled in some way. Nucleic acid probes may be made as s
RNA－FISH－on－cultured－cells－in－interphase2
Post-labeling DNA processing and purificationQiagen PCR clean up to get rid of unused oligonucleotides;Add 20µl cot1DNA, 10µl ssDNA to compete for rep
Overview－of－telomerase－RNA－component－gene－hTerc－Transcriptional－Regulation
Telomerase is an enzyme which replicates the terminal sequences of eukaryotic chromosomes, namely the telomeres. Cells which have an unlimited replica
Making－Metaphase－Spread
Materials:Colcemid (GIBCO: cat #: 15210-040)Hypotonic solution (pre-warmed 37C): 1:1 0.4% KCl + 0.4% Sodium citrateFixative: 3:1 MeOH + Acet
原位杂交组织化学实验技术6
二、快速原位杂交细胞化学技术 原位杂交免疫细胞化学技术存在的难点之一是实验手续繁琐，实验周期长。国外Liesi等（1986）和国内学者何彬等应用光敏生物素-链亲合素（Biotin-streptavidin）胶体金系统进行原位杂交，得到了快速满意的结果，全部实验可在数小时内完成。 作用把含某种多肽
FISH－protocols－for－Drosophila2
3. Methods3.1 RNA Probe Preparation1. Different strategies can be used to prepare template DNA for synthesizing antisense RNA probes by in vitro tr
Colony－Hybridization
ProcedurePrepare serial 10-fold dilutions of transformed bacteria in LB and spread 100 µL onto LB/Amp plates, as described in the Electroporation prot
COLONY－HYBRIDIZATION
COLONY HYBRIDIZATION1) CUT 4 PIECES OF 3MM WHATMAN PAPER AND PLACE EACH ONE IN A SEPARATE CONTAINER(A CAFETERIA TRAY WILL PROBABLY WORK PERFECTLY).2)
DNA转化
DNA转化Chemical Transformation· Transformation of Competent Cells (RbCl2 Method) (Goldberg Lab)Very nice protocol for E. Coli transformation inc
Principles－of－nucleic－acid－hybridization
Principles of nucleic acid hybridization5.2.1. Nucleic acid hybridization is a method for identifying closely related nucleic acid molecules within tw