methods Protocols

Category: RNA Protocols: 3' RACE Rapid Amplification of cDNA Ends Protocols

PCR cycle steps, protocol using SuperScript II reverse transcriptase (Life Technologies) and Taq polymerase, Gene specific primer, T17 Adapter primer and an Adapter primer. Dr.Dawson, Nottingham. - [Read 3' Rapid Amplification of cDNA Ends (RACE) Protocol]

Category: RNA Protocols: cDNA Libraries Library

96-well RNA In Situ Hybridization Protocol. Berkeley Drosophila Genome Project - [Read 96-well RNA In Situ Hybridization Protocol]

Category: PCR Protocols: In-situ PCR Protocols

96-well RNA In Situ Hybridization Protocol. Probe Preparation, Cell Inoculation, PCR, RNA Probe Preparation, etc, Very In-depth Protocol and Method Conditions. Berkeley Drosophila Genome Project. - [Read 96-well RNA In Situ Hybridization Protocol]

Category: Viral Culture and Isolation Protocols: Viral Isolation Protocols

Protocol describes typical methods that are used to propagate and purify AAV vectors for experiments both in vitro and in vivo. Includes: Principles of the Triple Plasmid Transfection System; Plasmids; Transfection and Extraction of Virus; Purification of the AAV vector. - [Read A Protocol for AAV Vector Production and Purification]

Category: Protein Protocols: Protein Quantitation Concentration Protocols

Absorbance assay at 280 nm.  This method is just as convenient as for absorbance at 280 nm.  It may be preferred if there is excessive contamination by nucleic acids, since nucleic acids absorb very little radiation at 205 nm.  Setting the wavelength is a bit tricky since 205 nm is right on the shoulder of the protein peak. - [Read Absorbance Assay 205 nm]

Category: Protein Protocols: Protein Quantitation Concentration Protocols

Absorbance assays are fast and convenient, since no additional reagents or incubations are required.  No protein standard need be prepared.  The assay does not consume the protein.  The relationship of absorbance to protein concentration is linear.  Because different proteins and nucleic acids have widely varying absorption characteristics there may be considerable error, especially for unknowns or protein mixtures. - [Read Absorbance Assay 280 nm]

Category: Primary Cell Isolation and Culture Protocols: Mammalian Cell Culture Protocols

There are many ways to adapt cell lines to serum-free media. Five methods are presented that are designed for adapting hybridomas to a protein-free medium. These protocols may require some modifications for your particular cell line and conditions. - [Read Adapting Cells to a Serum-Free Environment Protocol]

Category: Cytogenetics Protocols: Fluorescent In Situ Hybridization FISH Protocol

Additional slide pre-treatment for mapping smaller insert clones for FISH. Sanger Institute. - [Read Additional slide pre-treatment for mapping smaller insert clones]

Category: Cell Biology and Cell Culture: Apoptosis Protocols

Advances in Cytochemical Methods for Detection of Apoptosis. Katherine L. Barrett et al. 2001 - [Read Advances in Cytochemical Methods for Detection of Apoptosis]

Category: Protein Protocols: Antibody Purification Protocols

Affinity purification of antibodies from crude serum. David Bowtell Lab. - [Read Affinity purification of antibodies from crude serum]

Category: Plant Biology Protocols: Plant Genetics Protocols

AFLP was designed as a highly sensitive method for DNA fingerprinting to be used in a variety of fields. We are using this technology to generate DNA based markers for cloning genes involved in phototropic responses in higher plants that have only been identified genetically by mutant phenotype. Protocol includes: Generate polymorphic recombinant F2 (or F3) population; Isolate genomic DNA; Restriction of DNA; Ligation of adapters; Pre-amplification of template DNA; AFLP-PCR; etc. - [Read AFLP For Positional Cloning]

Category: PCR Protocols: AFLP PCR

Mannie Liscum and Paul Oeller. Department of Plant Biology. Carnegie Institution of Washington, Stanford. AFLP technology is used here to generate DNA based markers for cloning genes involved in phototropic responses in higher plants that have only been i - [Read AFLP: not only for fingerprinting, but for positional cloning]

Category: Molecular Biology Protocols: Agarose Gel Preparation

Agarose Gel Electrophoresis. Pouring of Agarose Gel, Preparation of samples, Gel electrophoresis, Ethidium bromide staining. - [Read Agarose Gel Electrophoresis PDF]

Category: Plant Biology Protocols: Plant Genetics Protocols

Protocol describing Agrobacterium mediated gene transfer via hypocotyls. - [Read Agrobacterium-Mediated Gene Transfer via Hypocotyls Protocol]

Category: Genetics and Genomics: Cancer Genetics Protocols

Describe the methods to identify and quantitate the specific A/E9a transcript in t(8;21) patients samples relative to the AML1-ETO transcript encoding the well known full-length 752 amino acid AML1-ETO protein (AE). Includes: RNA preparation and RT-PCR; Relative quantitation of the AE9a and the AE transcripts. - [Read An Alternatively Spliced Isoform of t(8;21) Transcript Promotes Leukemogenesis]

Category: Signalling Signal Transduction Protocols

Protocol on an image-based assay of endothelial cell tube formation as a model of angiogenesis. Includes: Introduction, Methods, Results, Discussion and References. - [Read An Image-Based Assay of Endothelial Cell Tube Formation]

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

Simple and universally applicable methods for staining fixed cells are presented, as are methods that utilize detergents and proteolytic treatment to permeabilize cells. Additionally, supravital cell staining with Hoechst 33342, which is primarily used for sorting live cells for subsequent culturing based on DNA-content differences, is also described. Also presented are methods for staining of cell nuclei isolated from paraffin-embedded tissues, and deconvolution of DNA-content-frequency... - [Read Analysis of Cellular DNA Content by Flow Cytometry Protocol]

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)]

Category: PCR Protocols: Bisulfite Conversion Based PCR Protocols

Protocol for the analysis of DNA methylation using bisulphite sequencing. Method allows precise analysis of methylation in a certain region by converting all nonmethylated cytosines into tymines, while methylated cytosines remain unchanged.  This method requires small amount of genomic DNA and therefore seems to be very useful for the analysis of clinical samples, where the material amount is limited.
- [Read Analysis of DNA Methylation using Bisulphite Sequencing Protocol]

Category: PCR Protocols: Bisulfite Conversion Based PCR Protocols

Protocol for analysis of DNA methylation using SnuPE. - [Read Analysis of DNA Methylation using SnuPE Protocol]

Category: Protein Protocols: Protein Trafficking

Protocol is based on methods for the resolution of GLUT4 containing vesicles and the identification of phosphoinositide kinase containing vesicles in 3T3-L1 adipocytes. They may have a wider application to any low-medium density membranes. Protocol incorporates the strategy of using a low density microsome fraction as the gradient input, commonly used in GLUT 4 studies that may have a wider application to other investigations. - [Read Analysis of Membrane Trafficking and Intracellular Signaling in Self-Generated Iodixanol Gradients]

Category: Epigenetics and Methylation Protocols: Bisulfite Treatment Methylation Assay Protocol

This method allows precise analysis of methylation in a certain region by converting all nonmethylated cytosines into tymines, while methylated cytosines remain unchanged. Dr. A. Gratchev Methods.info - [Read Analysis of methylation using bisulphite sequencing]

Category: Protein Protocols: Protein Phosphorylation Protocols

Paper describing methods for monitoring kinase activity, investigating kinase–substrate specificity, examining phosphorylation in planta and the determination of phosphorylation sites in a protein. In addition, strategic considerations for experimental design and variables will be discussed. Scott C. Peck, the Plant Journal. - [Read Analysis of protein phosphorylation: methods and strategies PDF]

Category: Buffers Media, and Solutions: Bacterial Solutions

Antibiotic Concentration in Media. (Gerard R. Lazo) - [Read Antibiotic Concentration in Media]

Category: C. elegans Protocols: C. elegans Staining Protocols

Extreme care should be used to identify and verify positive reactions, however, because cross-reactions are common. Counterstaining is essential for examining worms by immunofluorescence and is used to identify the exact cell in which an antigen appears. Methods for counterstaining include labeling all cells with a fluorescent dye that is specific for nucleic acids (e.g., DAPI or propidium iodide) and using GFP driven by tissue-specific promoters. - [Read Antibody Addition and Detection for Staining Caenorhabditis elegans Protocol]