techniques Protocols

Category: Chromatography Protocols: Liquid Chromatography Protocols

Protocol for desalting of peptides and protein mixtures by RP-HPLC techniques. The RP-HPLC technique can be used to "desalt" peptide or protein samples derived from extraction procedures, from chemical reactions such as reductive alkylation in the presence of urea or guanidine hydrochloride, citraconylation, iodination, or cyanogen bromide cleavage, or recovered from other chromatographic separation. - [Read Desalting of Peptides and Protein Mixtures by RP-HPLC Techniques Protocol]

Category: Primary Cell Isolation and Culture Protocols: Laser Capture Microdissection Protocols

Three Ambion kits were used to quantitate specific miRNAs and to detect differential miRNA expression in various mouse brain regions and cell types isolated by laser capture microdissection (LCM). These techniques can be applied to studying miRNA in other species, tissues, and cell types. Includes: Obtain Laser Capture Microdissected Samples; Isolate miRNA from LCM Samples; Quantitate miRNA by qRT-PCR. - [Read Detect and Quantitate MicroRNA in Laser Capture Microdissection Samples]

Category: C. elegans Protocols: C. elegans Cell Culture Protocols

Protocol for the development of techniques for primary culture of C. elegans embryonic neurons. - [Read Development of Techniques for Primary Culture of C. elegans Embryonic Neurons]

Category: C. elegans Protocols: C. elegans Cell Culture Protocols

Development of techniques for primary culture of C. elegans embryonic neurons. Includes: Optimized cell culture protocol. - [Read Development of Techniques for Primary Culture of C. elegans Embryonic Neurons 2nd Part]

Category: C. elegans Protocols: C. elegans Cell Culture Protocols

Development of techniques for primary culture of C. elegans embryonic neurons. - [Read Development of Techniques for Primary Culture of C. elegans Embryonic Neurons 3rd Part]

Category: Transfection Protocols: Stable Transfection Protocols

Pulsed electrical fields can be used to introduce DNA into a wide variety of animal cells. Electroporation works well with cell lines that are refractive to other techniques, such as calcium phosphate-DNA coprecipitation. But, as with other transfection methods, the optimal conditions for electroporating DNA into untested cell lines must be determined experimentally. - [Read DNA Transfection by Electroporation]

Category: Electrophysiology Ion Channels

Electrophysiology - The Patch Clamp Technique. Pictures and description. Assmann - [Read Electrophysiology - The Patch Clamp Technique]

Category: Cytogenetics Protocols: Fluorescent In Situ Hybridization FISH Protocol

FISH Guide and Troubleshooting. Includes: Cytogenetic techniques; Slide preparation; When do chromosomes spread; Cell suspensions; G-banding; Cell fixatives; Slide preparation factors. - [Read FISH Guide and Troubleshooting]

Category: Cytogenetics Protocols: Fluorescent In Situ Hybridization FISH Protocol

Protocol for fluorescence in situ hybridization of a repetitive DNA probe to human chromosomes in suspension. Hybridization technique which does not need formamide and dextran sulfate. As a model system, we used the repetitive specific human DNA probe pUC 1.77, labeled it with digoxigenin-11-dUTP by nick-translation, and hybridized it to metaphase chromosomes in suspension. These chromosomes were isolated by standard techniques from human lymphocytes. - [Read Fluorescence In Situ Hybridization of a Repetitive DNA Probe to Human Chromosomes in Suspension]

Category: Microscopy Protocols: Fluorescence Microscopy Protocols

Most biological specimens are relatively transparent, so details of internal and intracellular morphology are difficult to image in untreated living specimens using simple bright-field techniques. Fluorescence microscopy offers greater advantages and possibilities for increasing contrast and determining the specific localization of molecules in cells. Article outlines the three methods most commonly used to introduce an appropriate label into Drosophila tissue without perturbing the process. - [Read Fluorescent Reagents for Live Cell Imaging and Their Introduction into Cells]

Category: Cell Biology and Cell Culture

Fundamental Techniques in Cell Culture: A Handbook. Excellent Resource. Sigma. - [Read Fundamental Techniques in Cell Culture: A Handbook]

Category: Plant Biology Protocols: Arabidopsis Genetics Protocols

Protocol describes the use of glufosinate ammonium to select transformed Arabidopsis plants. The major advantage of glufosinate ammonium selection is that it can be performed on plants growing in soil and does not require the use of sterile techniques. - [Read Glufosinate Ammonium Selection of Transformed Arabidopsis Protocol]

Category: Cell Biology and Cell Culture: Cell Culture Techniques

ECACC Handbook of Cell Culture. Fundamental Techniques in Cell Culture: A Labratory Handbook. Sigma Aldrich. Excellent Guide to Cell Culture, aseptic technique, storage of cell lines, subculture of cells. - [Read Handbook of Cell Culture. - Sigma Aldrich.]

Category: DNA Protocols: Genomic DNA Library Protocols

Standard techniques are used here to isolate cytoplasmic RNA from COS cells transfected with a library of recombinant plasmids containing the genomic DNA of interest. - [Read Harvesting the mRNA for Exon Trapping and Amplification]

Category: Histology Protocols: Fixation of Cells Tissues Protocol

Protocols for cell fixation and tissue fixation. HISTOLOGY-RELATED PROTOCOLS Fixation and Frozen Block techniques. Embedding Tissue Into Frozen Blocks. Fixing Cells with Fresh Paraformaldehyde. Preparation of Frozen Sections. Immunohistochemistry. Paraffin sections and Frozen sections. DERC Univ. Colorado PDF. - [Read HISTOLOGY-RELATED PROTOCOLS Fixation and Frozen Block PDF]

Category: Western Blot Protocols

Protein immunoprecipitation can be a useful preparative step for immunoblotting.  For very rare proteins, the protein of interest can be purified and concentrated by standard immunoprecipitation techniques before immunoblotting.  In addition, protein-protein interactions can be tested with an immunoprecipitating antibody that is specific for one protein of a complex and an immunoblotting antibody that is specific for a second member of the complex. - [Read Immunoblotting: Preparing Immunoprecipitated Proteins Protocol]

Category: Primary Cell Isolation and Culture Protocols: Laser Capture Microdissection Protocols

Useful techniques to circumvent disruption of tissue structure in the analysis of gene expression are LCM and LDM. While they require specialized microscopes and systems, they are similar in that freshly-cut frozen tissue sections can be microdissected using either a general histological stain (like H&E) or by staining with fluorescently conjugated antibodies. The LCM system by Arcturus involves... - [Read Immunofluorescent Staining for the Laser Microdissection of Individual Cells Protocol]

Category: Plant Biology Protocols: Plant Genetics Protocols

To accurately predict the activity of a transgene it is critical to understand its location and dynamics in the 3-D interphase nucleus. Developed in situ methods to visualize transgenes (including single copy genes) & their transcripts during interphase from different tissues & plant species. These techniques reduce the time necessary for characterization of transgene integration by eliminating the need for time-consuming segregation analysis and extend characterization to the interphase nucleus - [Read In Situ Methods to Localize Transgenes and Transcripts in Interphase Nuclei]

Category: Cytogenetics Protocols: In Situ Hybridization Protocols

In situ methods to visualize transgenes (including single copy genes) and their transcripts during interphase from different tissues and plant species. These techniques reduce the time necessary for characterization of transgene integration by eliminating the need for time-consuming segregation analysis, and extend characterization to the interphase nucleus, thus increasing the likelihood of accurate prediction of transgene activity. - [Read In Situ Methods to Localize Transgenes and Transcripts in Interphase Nuclei]

Category: Mass Spectrometry Protocols

Peptide Mapping Analysis Techniques. Dr.Aebersold, Vrije Universiteit Amsterdam - [Read In-gel digestion of proteins for peptide fingerprint mapping]

Category: Immunology: Immunofluorescence Protocols

The study of the activation of DNA damage response factors at the single cell level relies on the observation of their accumulation (or the accumulation of their activated forms) in nuclear foci by plain immunofluorescence techniques. - [Read Indirect Immunofluorescence with Preextraction (In Situ Cell Fractionation) Protocol]

Category: Bacterial Protocols

Instructions for using anaerobic chamber and gassing station. - [Read Instructions for Using Anaerobic Chamber and Gassing Station]

Category: Microscopy Protocols: Live-Cell Imaging Protocols

Live-cell imaging techniques provide critical insight into the fundamental nature of cellular & tissue function, especially due to the rapid advances that are currently being witnessed in fluorescent protein & synthetic fluorophore technology. Because of these advances, live-cell imaging has become a requisite analytical tool in most cell biology labs. Includes: Maintaining Live Cells on the Microscope Stage; Live-Cell Imaging Culture Chambers; Optical System and Detector Requirements etc. - [Read Introduction to Live-Cell Imaging Techniques]

Category: Immunology: Mononuclear Cell Isolation Protocols

Covers techniques for preparing lymphoid cell suspensions and removing red blood cells and dead cells. - [Read Isolation of Mouse Mononuclear Cells Protocol]

Category: Immunology: T Cell Protocols

Peyer’s Patch, and Lamina Propria Cells lymphocyte populations should be analyzed when studying the immunological status of the intestine, for example in oral immunization or in intestinal disease (including infectious disease and tumors). This protocol details techniques for isolation of IEL, PP cells, and LP cells from the small intestine of the mouse. - [Read Isolation of Mouse Small Intestinal Intraepithelial Lymphocytes Protocol]