There are two basic methods for the in vitro assay of B-galactosidase activity from yeast. They
differ mainly in the method of preparing the material for assay. Both methods are described with accompanying protocols. Method I: Assay of Crude Extracts includes: Yeast Cell Growth; Yeast Cell Harvest; B-gal assays; Bradford Assays. Method II: Permeabilized cell assay. - [Read Assay of β-Galactosidase in Yeast Protocol]
The ability to synthesize RNA in the lab is critical to many techniques.Radiolabeled and nonisotopically labeled RNA probes, generated in small scale transcription reactions can be used in blot hybridizations and nuclease protection assays. This article includes information on: Requirements For Transcription, RNA Phage Polymerases, Template Options: Plasmids, PCR Products, Oligonuclotides and cDNA, Sense or Antisense, Conventional Or Large Scale Synthesis, Products for In Vitro Transcription. - [Read Basic Information on In Vitro Transcription]
Cultured mammalian cells are used extensively in cell biology studies; it requires a number of special skills in order to be able to preserve the structure, function, behavior and biology of the cells. This unit describes the basic skills required to maintain and preserve cell cultures: aseptic technique, medium characteristics, passaging, freezing and storage, recovering frozen stocks, and counting viable cells. - [Read Basic Techniques for Mammalian Cell Tissue Culture Protocol]
Cultured mammalian cells are used extensively in cell biology studies; it requires a number of special skills in order to be able to preserve the structure, function, behavior and biology of the cells. This unit describes the basic skills required to maintain and preserve cell cultures: aseptic technique, medium characteristics, passaging, freezing and storage, recovering frozen stocks, and counting viable cells. - [Read Basic Techniques for Mammalian Cell Tissue Culture 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]
Basic information on confocal microscopy, includes: Specimen Preparation and Imaging; Objective Lens Parameters and Optical Section Thickness; The Objective Lens; Probes for Confocal Imaging; Autofluorescence; Collecting Images; Troubleshooting; Image Processing and Publication; - [Read Confocal Microscopy: Speciman Preparation and Imaging]
Allows students to easily isolate chromosomal DNA from onion cells using the same basic tools and methods that scientists use in the lab. A good introduction to using pipettes. Kate Dollard - [Read DNA Isolation from Onion Cells]
Flow cytometry is a widely used method for characterizing and separating individual cells. This basic protocol focuses on: measure fluorescence intensity produced by fluorescent-labled antibodies and ligands that bind specific cell-associated molecules. Includes: Immunofluorescence Staining and Flow Cytometry Analysis. - [Read Flow Cytometry Analysis Protocol]
Flow cytometry is a widely used method for characterizing and separating individual cells. This basic protocol focuses on: measure fluorescence intensity produced by fluorescent-labled antibodies and ligands that bind specific cell-associated molecules. Includes: Immunofluorescence Staining; Flow Cytometry Analysis. - [Read Flow Cytometry Analysis Protocol]
Describes the basic principles of in situ hybridization and advantages and disadvantages of different methodologies that can be used. Includes: Probe Selection; Probe Generation; Probe Labels; Fixation of Tissue; Hybridization and Washing; Control Procedures. - [Read In situ Hybridization]
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.