wide Protocols

Category: Immunology: Immunoprecipitation Protocols: Chromatin Immunoprecipitation Protocols

Genome-wide location analysis, also known as ChIP-Chip, combines chromatin immunoprecipitation and DNA microarray analysis to identify protein-DNA interactions that occur in living cells. Protein-DNA interactions are captured in vivo by chemical crosslinking. Cell lysis, DNA fragmentation and immunoaffinity purification of the desired protein will co-purify DNA fragments that are associated with that protein. - [Read Chromatin Immunoprecipitation and Microarray-Based Analysis of Protein Location Protocol]

Category: Laboratory Model Organisms Protocols

Protocol describes the culture of marine euplotids using Dunaliella salina or D. tetiolecta as a food organism. Dunaliella tolerate a wide range of salinity, thus they are fairly easy to grow in the lab using artificial sea salts. - [Read Culturing Marine Euplotids Using Dunaliella as a Food Source Protocol]

Category: Nucleic Acid Purification Protocols: DNA Isolation Protocols: Genomic DNA Isolation Protocols

In this protocol, the DNA-binding capacity of Wizard MagneSil particles is used to capture and release a consistent amount of DNA (100 ng) across a wide range of samples.  At the end of the procedure, the DNA is eluted into 100 µl Elution Buffer to give a final concentration of 1 ng/µl, relieving the need for postpurification DNA quantitation. - [Read DNA IQ Isolation of Genomic DNA from Stains and Buccal Swabs Protocol]

Category: Transfection Protocols: Stable Transfection Protocols

Pulsed electrical fields can be used to introduce DNA into a wide variety of animal cells. Electroporation works well with cell lines that are refractive to other techniques, such as calcium phosphate-DNA coprecipitation. But, as with other transfection methods, the optimal conditions for electroporating DNA into untested cell lines must be determined experimentally. - [Read DNA Transfection by Electroporation]

Category: Cell Biology and Cell Culture: Flow Cytometry Protocols: Flow Cytometry Immunofluorescence Staining Protocols

Fluorescent dyes absorb light at certain wavelengths and in turn emit their fluorescence energy at a higher wavelength. Each dye has a distinct emission spectrum, which can be exploited for multicolor analysis. eBioscience antibodies are available conjugated to a wide variety of fluorochromes. - [Read Fluorescent Dyes for Flow Cytometric Analysis]

Category: Yeast Protocols: Yeast Protein Protocols: Yeast Protein Protein Interactions Protocols

This procedure capitalizes on the asexual/sexual reproductive cycle of yeast cells. Laboratory yeast strains can be maintained indefinitely by asexual reproduction as one of two haploid mating types, MATa or MAT{alpha}. - [Read Genome-Wide Analysis of Protein-Protein Interactions Using a Two-Hybrid Array]

Category: Yeast Protocols: Yeast Protein Protocols: Yeast Protein Protein Interactions Protocols

This protocol describes how to handle arrayed yeast using robotics. - [Read Genome-Wide Analysis of Protein-Protein Interactions Using a Two-Hybrid Array:]

Category: Yeast Protocols: Yeast Protein Protocols: Yeast Protein Protein Interactions Protocols

This protocol describes the first step in constructing an array: amplification of the predicted ORFs that are to be included in the array. Gene-specific primers containing vector-specific flanking sequences that facilitate recombinational cloning are used to amplify each ORF. A secondary amplification can be used to extend the length of the homologous vector sequence flanking the ORF. - [Read Genome-Wide Analysis of Protein-Protein Interactions Using a Two-Hybrid Array: Amplification of ORFs]

Category: Yeast Protocols: Yeast Protein Protocols: Yeast Protein Protein Interactions Protocols

This protocol describes three different storage methods for the array. Frozen stocks are the most permanent method and are an absolute requirement for maintaining a record of the array. - [Read Genome-Wide Analysis of Protein-Protein Interactions Using a Two-Hybrid Array: S]

Category: Microarray Protocols: Microarray Analysis Protocols

Genome-wide analysis of data generated on the Affymetrix 10K Xba 142 arrays for identification of regions with high probability to contain genes responsible for Micronodular (non-pigmented) Adrenocortical Hyperplasia. - [Read Genome-Wide Analysis Protocol]

Category: Yeast Protocols: Yeast Genetics Protocols

Protocol for genome-wide expression. - [Read Genome-Wide Expression Protocol]

Category: Yeast Protocols: Yeast Genetics Protocols: YACs Protocols

Protocol describes methods for isolation of DNA from a strain of S. cerevisiae carrying a recombinant YAC. Because the linear YAC DNAs are sensitive to shearing forces, pipettes with wide-bore tips should be used to transfer DNAs. The method is suitable for preparing DNA that will be used for agarose gel electrophoresis, Southern blotting, subcloning, genomic library construction, PCR, or other methods that do not require intact high-molecular-weight DNA. - [Read Growth of S. cerevisiae and Preparation of DNA Protocol]

Category: Antibody Protocols: Antibody Labeling Protocols

This protocol describes the covalent coupling of antibodies to biotin. Biotin groups bind with extremely high affinity to streptavidin and avidin, both of which are available commercially coupled with enzymes, fluorescent dyes, or iodine. A biotinylated primary antibody, therefore, can be detected with any of a wide variety of different labels. The biotinylation reaction is simple and mild, and rarely inactivates the antibody. - [Read Labeling Antibodies with Biotin Protocol]

Category: C. elegans Protocols

At low magnification, dissection microscopes are useful, whereas at higher magnification and resolution, a wide range of optical methods can be used, including differential interference contrast (DIC) optics, phase contrast, fluorescence, polarized light, confocal, and dark field. - [Read Live Imaging of Caenorhabditis elegans: Observation of Nematodes and Data Collection Protocol]

Category: Microscopy Protocols: Confocal Microscopy Protocols

Confocal laser scanning microscopy (CLSM) is a relatively new light microscopical imaging technique which has found wide applications in the biological sciences. The primary value of the CLSM to the biologist is its ability to produce optical sections through a 3-D specimen-e.g., an entire cell or a piece of tissue - that, to a good approximation, contain information from only one focal plane. Article includes principle and applications of confocal laser scanning microscope. - [Read Looking Inside Cells and Tissues by Optical Sectioning with a Confocal Laser Scanning Microscope]

Category: Cytogenetics Protocols

Protocol describes a recently developed method — methylation-specific digital karyotyping (MSDK) — that enables comprehensive and unbiased genome-wide DNA methylation analysis. Using a combination of a methylation-sensitive mapping enzyme (for example, AscI) and a fragmenting enzyme (for example, NlaIII), short sequence tags can be obtained and uniquely mapped to genome location. - [Read Methylation-Specific Digital Karyotyping Protocol]

Category: Nucleic Acid Detection Protocols: Nucleic Acid Blotting Protocols

Protocol for northern hybridization. Protocol describes how to carry out northern hybridization at high stringency in phosphate-SDS-buffers.  Although a wide variety of formats are available, hybridization is usually performed in heat-sealable bags, roller bottles, or plastic boxes, as described here. - [Read Northern Hybridization Protocol]

Category: Plant Biology Protocols: Plant DNA RNA Isolation Protocols

This protocol is not phenol-based, but does require the addition of chloroform. The Concert Plant Reagent is intended for the isolation of RNA from a wide variety of plant tissues including blue spruce needles, potato tuber etc. - [Read Purification of RNA from Plant Tissue Using the Concert Plant Reagent]

Category: Nucleic Acid Detection Protocols: Nucleic Acid Blotting Protocols

Protocol for southern hybridization of radiolabeled probes to nucleic acids immobilized on membranes. Protocol describes how to carry out Southern hybridizations at high stringency in phosphate-SDS buffers.  Although a wide variety of formats are available, most Southern hybridizations are carried out in heat-sealable bags, roller bottles, or plastic boxes. - [Read Southern Hybridization of Radiolabeled Probes to Nucleic Acids Immobilized on Membranes Protocol]