performed Protocols

Category: RNAi Technology Protocols: RNAi C. elegans Protocols

Protocol for RNAi screens in C. elegans in a 96-well liquid format and their application to the systematic identification of genetic interactions. The procedure allows thousands of RNAi feeding experiments to be performed per investigator per day. - [Read RNAi Screens in C. elegans Protocol]

Category: PCR Protocols: Colony PCR

The following colony PCR protocol has been designed to be performed in individual reaction tubes. We usually test three colonies from each transformation along with a wild-type control. A series of five different PCR tests are performed on each colony to - [Read Single tube confirmation PCR protocol]

Category: DNA Protein Interactions Protocols

The multiprotein-DNA complex of interest is formed using the site-specifically derivatized DNA fragment.  The complex is then UV-irradiated, initiating covalent cross-linking with proteins in direct physical proximity to the cross-linking agent.  Extensive nuclease digestion is performed to eliminate uncross-linked DNA and convert cross-linked DNA to a cross-linked, radiolabeled nucleotide "tag." - [Read Site-Specific Protein-DNA Photo-Cross-Linking: Analysis of Structural Organization of Protein-DNA]

Category: Reporter Gene Assays: Luciferase Assay Protocols

Protocol describes a split luciferase complementation assay that can be used to repetitively and noninvasively study the interaction of proteins in small living animals. After the expression of the appropriate vectors has been checked in cell culture in vivo, studies can be performed either by implanting transiently transfected cells for short-term analysis (maximum of 7 days), or with tumor models grown from tumor cells stably expressing the complete reporter system. - [Read Split Luciferase Complementation Assay for Studying Interaction of Proteins X and Y in Living Mice]

Category: Cell Biology and Cell Culture: Cell Cycle Protocols: Mitosis Protocols

Protocol describes a method for synchronizing monolayer cells in mitosis using selective detachment from their substrate. During mitosis, cells become spherical, causing them to become more loosely attached to their substrate. The "rounded up" cells are selectively detached by tapping the culture flask, resulting in a population in which as many as 90-98% of the cells are in mitosis. The drug nocodazole is used to increase the percentage of cells undergoing mitosis before detachment is performed - [Read Synchronization of Mammalian Cell Cultures in Mitosis Using Selective Detachment Protocol]

Category: Mouse Protocols: Mouse Embryology Protocols

Blastocyst transfer is usually performed 24 hours after aggregation, when the morulae have become expanded blastocysts, and on the same day as injection. A little time is given between injection and transfer to allow the blastocysts to re-expand. Includes: The Mouse Recipient; The Transfer. - [Read Transfer of Injected Blastocysts to Pseudo Pregnant Mice Protocol]

Category: Fungi Protocols: Neurospora Protocols

Simple method for growing Neurospora and for isolation of DNA that may be performed in two days from start to finish. The growth of mycelia in Petri plates eliminates the need for large numbers of flasks when growing many cultures for DNA isolation. - [Read Ultra-Fast Method of DNA Extraction from Neurospora Protocol]

Category: Cytogenetics Protocols: In Situ Hybridization Tissue Sections Protocols

Protocol for visualizing miRNAs in adult skeletal muscle by hybridization in situ. Includes: Visualizing miRNAs in adult skeletal muscle by hybridization in situ; Probe preparation; Tissue preparation; Fixation; Deproteinization with Proteinase K; Acetylation of the tissue; Dehydration; Hybridization step; Post-Hybridization Washes (Step 1-6 should be performed on shaker); Signal Detection (Steps should be performed on a shaker); Post-Detection Washes. - [Read Visualizing miRNAs in Adult Skeletal Muscle by Hybridization In Situ Protocol]

Category: Cytogenetics Protocols: RNA In Situ Hybridization Protocols

Protocol for visualizing miRNAs in adult skeletal muscle by hybridization in situ. Includes: Visualizing miRNAs in adult skeletal muscle by hybridization in situ; Probe preparation; Tissue preparation; Fixation; Deproteinization with Proteinase K; Acetylation of the tissue; Dehydration; Hybridization step; Post-Hybridization Washes (Step 1-6 should be performed on shaker); Signal Detection (Steps should be performed on a shaker); Post-Detection Washes. - [Read Visualizing miRNAs in Adult Skeletal Muscle by Hybridization in situ Protocol]