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Cell Viability Information For Protocols and Applications - http://www.promega.com/paguide/chap4.htm

Category: Cell Biology and Cell Culture: Cell Viability Protocols

Choosing a cell viability or cytotoxicity assay from among the many different options available can be a challenging task. Includes information on: Establishing an In Vitro Model System; Choosing an Endpoint to Measure; Characterizing Assay Responsiveness; Determining Dose and Duration of Exposure; Homogeneous Assays for Multiwell Formats and Automated Screening; Additional Factors to Consider When Choosing a Cell Viability Assay; Cell Viability Assays that Measure ATP Protocol; etc.. - [Read Cell Viability Information For Protocols and Applications]

Northern Hybridization Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot3723

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]

Purification of Histidine-tagged Proteins by Immobilized Ni2+ Absorption Chromatography Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4088

Category: Chromatography Protocols: Affinity Chromatography Protocols

Recombinant proteins engineered to have a polyhistidine tail at either the carboxyl or amino terminus can easily be purified in one step by affinity chromatography on a resin carrying chelated nickel ions. Chromatography can be carried out in column or batch formats. After unbound proteins are washed away, the target protein is eluted using imidazole, which typically preserves the antigenic and functional features of the protein. - [Read Purification of Histidine-tagged Proteins by Immobilized Ni2+ Absorption Chromatography Protocol]

Southern Hybridization of Radiolabeled Probes to Nucleic Acids Immobilized on Membranes Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4044

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]