User Panel

My Panel

Bookmark Science Articles

extract Protocols

Search results for: extract

Protocols » Search Results

Search Results Protocol Links Sort by: Hits | Alphabetical

(LCM): Preparation and Sectioning of Frozen Tissue Blocks and Purification of RNA from Isolated Cel - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4107

Category: Primary Cell Isolation and Culture Protocols: Laser Capture Microdissection Protocols: Tissue Preparation for LCM Protocols

LCM isolates specific cells or tissues from samples mounted on microscope slides. The samples are viewed through a thermoplastic film that is attached to a microcentrifuge tube lid. Localized heat, caused by the application of a laser pulse, fuses the membrane to the cells of interest, which can then be harvested for further analysis. RNA and proteins can be purified from the isolated cells, allowing detailed analysis of gene expression. This protocol is divided into three stages. - [Read (LCM): Preparation and Sectioning of Frozen Tissue Blocks and Purification of RNA from Isolated Cel]

3'-End cDNA Amplification Using Classic RACE Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/14/pdb.prot4130

Category: PCR Protocols: cDNA Synthesis Protocols

To generate "3'-end" partial cDNA clones, mRNA is reverse-transcribed using a "hybrid" primer (Qtotal, QT) that consists of two mixed bases (GATC/GAC followed by [T]17) and a unique 35-base oligonucleotide sequence (QI-QO). Amplification is then performed using a primer containing part of this sequence (Qouter, Qo) (which now binds to each cDNA at its 3'-end) and a primer derived from the gene of interest, GSP1 (gene-specific primer 1). - [Read 3'-End cDNA Amplification Using Classic RACE Protocol]

5'-End cDNA Amplification Using Classic RACE Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/14/pdb.prot4131

Category: PCR Protocols: cDNA Synthesis Protocols

To generate "5'-end" partial cDNA clones using classic RACE, the first-strand products are generated by reverse transcription (primer extension) from a known gene-specific primer (GSP-RT). Then, a poly(A) tail is appended using terminal deoxynucleotidyltransferase (Tdt) and dATP. Amplification is carried out using three primers. - [Read 5'-End cDNA Amplification Using Classic RACE Protocol]

5'-End cDNA Amplification Using New RACE Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/14/pdb.prot4132

Category: PCR Protocols: cDNA Synthesis Protocols

New RACE, a variation of RNA ligase-mediated-RACE (RLM-RACE) (Liu and Gorovsky 1993) departs from classic RACE (see 5'-End cDNA Amplification Using Classic RACE) in that an "anchor" primer is attached to the 5'-end of the mRNA before the reverse transcription step; hence the anchor sequence becomes incorporated into the first-strand cDNA if, and only if, the reverse transcription proceeds through the entire length of the mRNA of interest. - [Read 5'-End cDNA Amplification Using New RACE Protocol]

A Magnetic Particle-Based Method for Purifying PCR Products from Solution Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4100

Category: PCR Protocols

The MagneSil system can selectively isolate PCR products that are more than 150-bp long from primers and primer -dimers. The technology can be used with a number of robotic workstations, including Beckman Coulter’s Biomek 2000 and FX Laboratory Automation Workstations. The procedure can also be carried out manually. Typical recovery is more than 80% for a 1-kb product with negligible carryover of primers or nucleotides. - [Read A Magnetic Particle-Based Method for Purifying PCR Products from Solution Protocol]

A Multiplex PCR Method to Define a Narrow Deleted Chromosomal Region of a Tumor Genome - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4117

Category: Genetics and Genomics: Cancer Genetics Protocols: Loss of Heterozygosity Protocols

DNA for analysis is purified using salt precipitation. The method is gentle, limits the breakage of the long chromosomal strands, and avoids the use of phenol and chloroform. It is suitable for use with cultured cells, breast tumor tissue that has been subjected to hormone receptor analysis, and blood samples. The loss of heterozygosity assay is performed using a multiplex PCR, in which one of each primer pair is labeled with a different fluorophor. - [Read A Multiplex PCR Method to Define a Narrow Deleted Chromosomal Region of a Tumor Genome]

A Sealed Preparation for Long-Term Observations of Cultured Cells: Support Slide Construction - http://www.cshprotocols.org/cgi/content/extract/2007/1/pdb.ip26

Category: Microscopy Protocols: Live-Cell Imaging Protocols

Protocol on the details required of support slide construction for a sealed preparation for long-term observations of cultured cells. - [Read A Sealed Preparation for Long-Term Observations of Cultured Cells: Support Slide Construction]

A Single-step Method for the Simultaneous Preparation of DNA, RNA, and Protein from Cells and Tissue - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4056

Category: Nucleic Acid Purification Protocols

Protocol for a single-step method for the simultaneous preparation of DNA, RNA, and protein from cells and tissues. The yield of total RNA depends on the tissue or cell source, but it is generally in the range of 4-7 µg/mg starting tissue or 5-10 µg/106 cells. IMPORTANT: Prepare all reagents used in this protocol with Diethyl pyrocarbonate (DEPC)-treated H2O. - [Read A Single-step Method for the Simultaneous Preparation of DNA, RNA, and Protein from Cells and Tissue]

Actin Staining in Fixed Yeast Cells Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4168

Category: Cytoskeleton Protocols: Actin Myosin Protocols

Phalloidin binds specifically to F-actin, and fluorescent-tagged phalloidin stains the actin skeleton in cells in a manner that is very close to the staining pattern seen using anti-actin antibody. - [Read Actin Staining in Fixed Yeast Cells Protocol]

Agarose Gel Electrophoresis Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4020

Category: Nucleic Acid Electrophoresis Protocols

Protocol on how to pour, load, and run an agarose gel. - [Read Agarose Gel Electrophoresis Protocol]

Alkaline Agarose Gel Electrophoresis Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4027

Category: Nucleic Acid Electrophoresis Protocols: DNA Electrophoresis Protocols: DNA Electrophoresis in Agarose Gels Protocols

Alkaline agarose gels are used chiefly to measure the size of first and second strands of cDNA (Construction of cDNA Libraries Stage 1: Synthesis of First-strand cDNA Catalyzed by Reverse Transcriptase) and to analyze the size of the DNA strand after digestion of DNA-RNA hybrids with nucleases such as S1. - [Read Alkaline Agarose Gel Electrophoresis Protocol]

Alkaline Phosphatase Treatment of Bacteriophage lambda Vector DNA Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot3976

Category: Viral Manipulation Protocols: Phage Lamda Manipulation Protocols

Removal of the 5'-phosphate groups from the internal termini of bacteriophage {lambda} arms is used to prevent self-ligation and suppress the background of nonrecombinant bacteriophages during cloning. - [Read Alkaline Phosphatase Treatment of Bacteriophage lambda Vector DNA Protocol]

Amplification and Storage of a Cosmid Library: Amplification in Liquid Culture Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4001

Category: DNA Protocols: Cosmid Library Protocols

Amplification of cosmid libraries may result in distorted representation of cloned genomic sequences and should be avoided wherever possible. If amplification should become necessary, it is best to expand the library by growth in liquid medium. - [Read Amplification and Storage of a Cosmid Library: Amplification in Liquid Culture Protocol]

Amplification and Storage of a Cosmid Library: Amplification on Filters Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4002

Category: DNA Protocols: Cosmid Library Protocols

Amplification of cosmid libraries may result in distorted representation of cloned genomic sequences and should be avoided wherever possible. In this method of amplification, distortion of the library is rarely a problem because at no stage are bacteria containing different recombinant cosmids grown in competition with one another. - [Read Amplification and Storage of a Cosmid Library: Amplification on Filters Protocol]

Amplification of cDNA Generated by Reverse Transcription of mRNA Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot3837

Category: PCR Protocols: cDNA Synthesis Protocols

An oligodeoxynucleotide primer hybridized to mRNA is extended by an RNA-dependent DNA polymerase to create a cDNA copy that can be amplified by PCR. Depending on the purpose of the experiment, the primer for first-strand cDNA synthesis can be specifically designed to hybridize to a particular target gene, or a general primer such as oligo(dT) can be used to prime cDNA synthesis from essentially all mammalian mRNAs - [Read Amplification of cDNA Generated by Reverse Transcription of mRNA Protocol]

Amplification of RNA: High-Temperature Reverse Transcription and DNA Amplification with a Magnesium - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4115

Category: PCR Protocols: Reverse Transcriptase RT-PCR Protocols

Protocol uses a single thermostable RNA polymerase to perform high-specificity RT-PCR. A high-temperature RT reaction is followed by PCR amplification of the cDNA using a single thermostable poymerase, the GeneAmp AccRT RNA PCR enzyme from Applied Biosystems. The high temperature of the RT reaction enhances the specificity of primer binding and also reduces secondary structure in the template, thereby increasing the efficiency of polymerization. - [Read Amplification of RNA: High-Temperature Reverse Transcription and DNA Amplification with a Magnesium]

Analysis of Clones for Exon Trapping and Amplification - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot3651

Category: DNA Protocols: Genomic DNA Library Protocols

Amplification and sequencing of the exon-trapped products. - [Read Analysis of Clones for Exon Trapping and Amplification]

Analysis of DNA Fragmentation Using Agarose Gel Electrophoresis (Subscription Required) - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4429

Category: Cell Biology and Cell Culture: Apoptosis Protocols: Apoptosis Analysis

Analysis of DNA Fragmentation Using Agarose Gel Electrophoresis Shailaja Kasibhatla et al. This protocol provides a qualitative method for assessing cell death by detecting DNA fragments using agarose gel electrophoresis. One of the classic features of apoptosis is the cleavage of the genomic DNA into oligonucleosomal fragments represented by multiples of 180-200 bp. Visualizing these fragments can aid in characterizing an apoptotic event. May be combined with more quantitative methods. - [Read Analysis of DNA Fragmentation Using Agarose Gel Electrophoresis (Subscription Required)]

Analysis of DNA Fragmentation Using Propidium Iodide (PI) Fluorescence of Individual Nuclei Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4430

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: DNA Staining Protocols for Flow Cytometry

This protocol provides a method for analysis of DNA fragmentation using flow cytometry after propidium iodide (PI) labeling of apoptotic nuclei. Apoptotic nuclei stain less than their normal counterparts because of diffusion of low-molecular-weight fragments out of the cells and/or chromatin condensation. - [Read Analysis of DNA Fragmentation Using Propidium Iodide (PI) Fluorescence of Individual Nuclei Protocol]

Analysis of DNA Fragmentation Using Propidium Iodide (PI) Staining After Ethanol Fixation Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4431

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: DNA Staining Protocols for Flow Cytometry

This protocol provides a method for analysis of DNA fragmentation using flow cytometry after propidium iodide (PI) labeling of fixed apoptotic cells. Flow cytometry reveals apoptotic nuclei in the subdiploid region of the cell cycle histogram... - [Read Analysis of DNA Fragmentation Using Propidium Iodide (PI) Staining After Ethanol Fixation Protocol]

Analysis Of DNA Fragmentation Using The JAM Assay (Subscription Required) - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4432

Category: Cell Biology and Cell Culture: Apoptosis Protocols: Apoptosis Analysis

Analysis of DNA Fragmentation Using the JAM Assay. By Shailaja Kasibhatla et al., The JAM assay is based on labeling nuclear DNA of cycling cells with [3H]thymidine and harvesting samples on glass fiber filters. Apoptosis will generate DNA fragments small enough to pass through the glass fiber filter, resulting in decreased radioactivity of the particular sample. Cell-mediated cytotoxicity or cell killing mediated by cytotoxic T lymphocytes (CTL) can also be measured by this technique. - [Read Analysis Of DNA Fragmentation Using The JAM Assay (Subscription Required)]

Analysis of Recombinant Bacteriophage M13 Clones Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot3996

Category: Viral Manipulation Protocols: M13 Phage Manipulation Protocols

A rapid method to analyze the size of the single-stranded DNA of M13 recombinants. - [Read Analysis of Recombinant Bacteriophage M13 Clones Protocol]

Analyzing Yeast Colonies by PCR Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4015

Category: Yeast Protocols: Yeast Nucleic Acid Protocols: Yeast PCR Protocols

Yeast colonies are suspended in complete PCR buffer and transferred to a thermal cycler for 35 cycles of PCR. The products of the amplification reaction are analyzed by gel electrophoresis. - [Read Analyzing Yeast Colonies by PCR Protocol]

Annealing siRNAs to Produce siRNA Duplexes Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4340

Category: RNAi Technology Protocols

Protocol describes a procedure to anneal sense and antisense siRNA strands to form a duplex. The duplexes can then be transfected into cultured cells. - [Read Annealing siRNAs to Produce siRNA Duplexes Protocol]

Assay for ß-galactosidase in Extracts of Mammalian Cells - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot3952

Category: Reporter Gene Assays: B-Galactosidase Assay Protocols

The assay for ß-galactosidase relies on the ability of the enzyme to catalyze the hydrolysis of ONPG (o-nitrophenyl-ß-D- galactopyranoside) to free o-nitrophenol, which absorbs light at 420 nm. In this protocol, extracts of cells transfected with a ß-galactosidase reporter plasmid are incubated with ONPG. - [Read Assay for ß-galactosidase in Extracts of Mammalian Cells]

Articles (1-10 of 10)

Populational Analysis of Genomic DNA Protocol

A protocol on the populational Analysis of genomic DNA.

Lambda Phage Protocol for Large Preparation DNA Recovery

Lambda Phage Protocol for Large Preparations DNA Recovery.

Single Stranded Plasmid DNA Isolation Protocol

A Single Stranded Plasmid DNA Isolation Protocol describing the production and isolation of single-stranded DNA (ssDNA) using bacteriophagemid-containing bacteria and helper phage. Infection of the host cells with helper phage allows for packaging of ssDNA into bacteriophage. The ssDNA can then be isolated from phage particles.

Genomic DNA Labeling of Microarrays Protocol

DNA microarrays are an ordered arrangement of DNA molecules complementary to genes of interest that are "spotted" by robotic equipment onto a glass slide substrate. The expression of genes in cells can be monitored with microarrays by preparing cDNA from the mRNA of cells of interest and measuring the hybridization to the microarray. This protocol describes the labeling of genomic DNA for use as a probe for hybridization to the cDNA spotted on the array.

Acid Guanidinium Thiocyanate RNA Isolation Phenol Chloroform Extraction

A single step RNA isolation protocol using Phenol Chloroform Extraction and Acid Guanidinium Thiocyanate. This RNA isolation method uses the fact that guanidinium thiocyanate can simultaneously lyse the cells and inactive cellular RNAses during the initial RNA isolation step allow a single step in the method.

In Vitro Translated Xenopus Mos Kinase Assay Protocol

In Vitro Translated Xenopus Mos Kinase Assay Protocol. In response to progesterone, immature Xenopus oocytes mature to eggs that can be fertilized. The Mos protein kinase is essential for oocyte maturation, most likely due to its ability to activate the MAP kinase cascade. This MAP kinase cascade eventually leads to the activation of Cdc2/cyclin B and entry into M phase. In this protocol, tagged Mos kinase is translated in vitro, immunopurified, and used in a kinase assay.

Antibodies Phage Expression Protocol Using 96-well Microtiter Plates

A Phage display expression protocol for antibody expression in 96-well microtiter plates.

Immobilized Antigen Phage Antibody Selection Protocol

A protocol for the selection of Phage Antibodies using Immobilized Antigen. This method describes the selection of antibodies from bacteriophage antibody libraries that recognize a specific antigen. The phage display library of antibody-displaying phage particles is exposed to antigen attached to a solid substrate (Nunc Immuno™ tubes). The phage particles with affinity for antigen bind to the immobilized antigen and are selected from the library of phage expressing antibodies.

Histone H1 Kinase Activity Assay

Histone H1 Kinase Activity Assay Protocol. This protocol describes assaying kinase activity of a putative kinase using Histone H1 as the substrate. Histone H1 is the canonical kinase substrate in this type of assay. Phosphorylation of Histone H1 is assessed by SDS-Polyacrylamide gel electrophoresis followed by autoradiography.

Electrotransformation of BMH 81-17mut S for Isolating Site-Directed dsDNA Mutants

This protocol describes the electroporation of the BMH 81-17 mut S strain that is recommended for tranformation of the site directed mutagenesis of dsDNA (See Protocol on Site-Directed Mutagenesis on Double Stranded DNA). BMH 81-17 mut S are a mismatch repair defective (mut S) Escherichia coli strain. The probability that the two mutations will cosegregate during the first round of DNA replication is increased in this strain.

[1-10]

Items 1-25 out of 554 displayed.