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]
Describes flow cytometric protocols using the dyes Indo-1 AM, Fluo-3, and Fura Red AM to measure intracellular calcium concentration. Support protocols detail the use of calcium buffers to calibrate a flow cytometric calcium assay, and methods to facilitate dye loading; an alternate protocol describes the use of a spectrofluorimeter to measure intracellular calcium for those investigators without access to a flow cytometer. - [Read Measurement of Intracellular Ions by Flow Cytometry Protocol]
Protocol describes the trypsinization of cells in monolayer culture to facilitate subculture or harvesting. To avoid cross-contamination of cells, it is important for each cell line to be subcultured independently. No more than one cell line should be in the tissue culture hood at any one time. - [Read Trypsinization of Cells Grown in Monolayer Protocol]