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]
Restriction Digestion of Genomic DNA , Adapter preparation, Ligation of Adapters. Pre amplification Reactions. Gel electrophoresis, Silver Staining. AFLP Protocol and procedure. - [Read AFLP protocol]
Agarose Gel Electrophoresis. Pouring of Agarose Gel, Preparation of samples, Gel electrophoresis, Ethidium bromide staining. - [Read Agarose Gel Electrophoresis PDF]
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]
The technique of JC-1 staining has been developed with the intent to detect DY in intact, viable cells. For this purpose JC-1 acts as a marker of mitochondrial activity, since the formation of J-aggregates, which give red emission, is reversible. Cells with high DY are those forming J-aggregates, thus showing high red fluorescence. On the other hand, cells with low DY are those in which JC-1 maintains (or re-acquire) monomeric form, thus showing only green fluorescence. - [Read Analysis of Mitochondrial Membrane Potential with the Sensitive Fluorescent Probe JC-1]
An excellent guide on the analysis of proteins on SDS-PAGE gels, through staining with coomassie blue dye and western blot analysis. Analysis of Protein Gels (SDS-PAGE). David R. Caprette, Rice University. - [Read Analysis of Protein Gels (SDS-PAGE)]
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]
Enzyme-linked reagents give excellent sensitivity and use a simple light microscope for detection. A range of enzymes is available, but for staining in situ, horseradish peroxidase will suit most needs. Diaminobenzidine (DAB) is one of the most sensitive substrates for horseradish peroxidase. It yields an intense brown product that is insoluble in both water and alcohol. It can be made more sensitive by adding metal salts such as cobalt or nickel to the substrate solution. - [Read Antibody Addition to Drosophila Specimens and Detection Using Enzyme-Linked Reagents Protocol]
A sensitive method for the detection of apoptosis by single laser flow cytometry. Methodology includes: Staining for detection of apoptosis, Direct Staining Procedure, Indirect Staining Procedure, Protocol for the use of actinomycin D (AD) on samples that were stained with 7-AAD for apoptosis and fixed in formaldehyde. - [Read Apoptosis Detection Protocol By Single Laser Flow Cytometry]
Protocol for blocking of unwanted non-specific staining. Includes: Blocking of endogenous enzymes; Blocking of endogenous fluorochromes; Blocking endogenous biotin; Blocking of endogenous Fc blocking; Blocking of crossreactive antigens in the tissue. - [Read Blocking of Unwanted Non-Specific Staining Protocol]
Blocking of unwanted non-specific staining in Immunofluorescence. Blocking of endogenous enzymes, Blocking of endogenous fluorochromes, Blocking endogenous biotin , Blocking of endogenous Fc blocking, Blocking of crossreactive antigens in the tissue. Cattoretti. Columbia University - [Read Blocking of unwanted non-specific staining in Immunofluorescence.]
Protocol for blocking of unwanted non-specific staining. Includes: Blocking of endogenous enzymes; Blocking of endogenous fluorochromes; Blocking endogenous biotin;
Blocking of endogenous Fc blocking; Blocking of cross reactive antigens in the tissue. - [Read Blocking Unwanted Non-Specific Staining Protocol]
Protocol describes the use of a basic water-based dye to stain for acid mucosubstances and acetic mucins located on the cartilage of fixed embryos, permitting the examination of cartilage formation. - [Read Cartilage Staining of Xenopus tropicalis Protocol]