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Analysis of DNA Methylation using Bisulphite Sequencing Protocol - http://www.methods.info/Methods/DNA_methylation/Bisulphite_sequencing.html

Category: PCR Protocols: Bisulfite Conversion Based PCR Protocols

Protocol for the analysis of DNA methylation using bisulphite sequencing. Method allows precise analysis of methylation in a certain region by converting all nonmethylated cytosines into tymines, while methylated cytosines remain unchanged. This method requires small amount of genomic DNA and therefore seems to be very useful for the analysis of clinical samples, where the material amount is limited.
- [Read Analysis of DNA Methylation using Bisulphite Sequencing Protocol]

Assay of β-Galactosidase in Yeast Protocol - http://www.oardc.ohio-state.edu/stockingerlab/Protocols/BetaGalAssays.pdf

Category: Reporter Gene Assays: B-Galactosidase Assay Protocols

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]

Chromatin Immunoprecipitation (ChIP) of Protein Complexes Protocol - http://www.cshprotocols.org/cgi/content/abstract/2006/23/pdb.prot4560

Category: Immunology: Immunoprecipitation Protocols: Chromatin Immunoprecipitation Protocols

Protocol describes the use of chromatin immunoprecipitation technology (ChIP) to analyze interactions of proteins or protein complexes with DNA in vivo. In this approach, the material is fixed with formaldehyde to preserve DNA-protein and protein-protein associations, the cells are lysed, and the chromatin is cut and solubilized. The chromatin suspension is immunoprecipitated with an antibody against the protein(s) of interest, and the coimmunoprecipitated DNA fragments are analyzed. - [Read Chromatin Immunoprecipitation (ChIP) of Protein Complexes Protocol]

Clearing Arabidopsis Non-Ovule Materials With the HCG Solution Protocol - http://www.hybtech.org/Liu/HCG_clearing.htm

Category: Plant Biology Protocols

Protocol can be used for clearing intact non-ovule materials of arabidopsis, which can then be observed under Normarski optics. This is an efficient way to analyse root, seedling even flower development without sectioning. This protocol could also be used for clearing GUS stained material, after chlorophyll is removed by 70% ethanol. - [Read Clearing Arabidopsis Non-Ovule Materials With the HCG Solution Protocol]

De Novo Isolation of Embryonic Stem (ES) Cell Lines from Blastocysts Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/16/pdb.prot4403

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

The starting material for de novo isolation of stem cell lines can be either normal 3.5-days post coitum (dpc) expanded blastocysts or "delayed" blastocysts. Delayed blastocysts are usually collected 4-6 days after ovariectomy. For both groups of blastocysts, tissue culture procedures are similar. The only difference is the timing of the first disaggregation, because delayed blastocysts will initially grow more slowly. - [Read De Novo Isolation of Embryonic Stem (ES) Cell Lines from Blastocysts Protocol]

Detection of mRNA on Paraffin Embedded Material of the Central Nervous System with DIG-Labeled RNA - http://www.roche-applied-science.com/PROD_INF/MANUALS/InSitu/pdf/ISH_164-171.pdf

Category: Cytogenetics Protocols: In Situ Hybridization Tissue Sections Protocols

Protocol for detection of mRNA on paraffin embedded material of the central nervous system with DIG-labeled RNA probes. - [Read Detection of mRNA on Paraffin Embedded Material of the Central Nervous System with DIG-Labeled RNA]

DNA and RNA Extraction Protocols - http://www.le.ac.uk/biology/phh4/dnarna.htm

Category: Plant Biology Protocols: Plant DNA RNA Isolation Protocols

A protocol for extraction or isolation of both DNA and RNA from the same material, typically plant leaf or leaves. - [Read DNA and RNA Extraction Protocols]

DNA Microprep Isolation from Plants Protocol - http://www.bio.com/protocolstools/protocol.jhtml?id=p9010

Category: Plant Biology Protocols: Plant DNA RNA Isolation Protocols

The original maize DNA miniprep protocol is used extensively for many plant species and different tissues. This slightly modified version is acceptable for most DNA extractions. The procedure has the advantage of isolating DNA from plant material very rapidly. The procedure requires a table-top drill-press (mechanized homogenizer). - [Read DNA Microprep Isolation from Plants Protocol]

Kinase Assay Using In Vitro Translated Xenopus Mos Kinase - http://www.bio.com/protocolstools/protocol.jhtml?id=p912

Category: Signalling Signal Transduction Protocols

Protocol describes how tagged Mos kinase is translated in vitro, immunopurified, and used in a kinase assay. Protocol includes: Translation of Xenopus Mos Kinase; Antibody to Antigen Binding; Protein A Sepharose to Antibody Binding; Kinase Reactions on Immunoprecipitated Material; Polyacrylamide Gel Analysis of Immunoprecipitates. Includes protocol hints. - [Read Kinase Assay Using In Vitro Translated Xenopus Mos Kinase]

Measuring Volume Protocol - http://homepages.gac.edu/~cellab/chpts/chpt1/ex1-6.html

Category: Microscopy Protocols

Protocol for measuring volume. Material required includes: Microscope, Hemacytometer and coverslip, Suspension of yeast. - [Read Measuring Volume Protocol]

Microarray Protocol for Affymetrix In Situ Synthesized Oligo Arrays - http://www.signaling-gateway.org/data/cgi-bin/ProtocolFile.cgi/afcs_PP00000174.pdf?pid=PP00000174

Category: Microarray Protocols: Microarray Hybridization Protocols

Protocol details the preparation of biotin-labeled target samples and hybridization of these samples to an Affymetrix in situ synthesized oligonucleotide GeneChip array. The procedure requires a minimum of 5 µg of purified total RNA as starting material. - [Read Microarray Protocol for Affymetrix In Situ Synthesized Oligo Arrays]

Microarray Protocol for Agilent Inkjet-Deposited Presynthesized - http://www.signaling-gateway.org/data/cgi-bin/ProtocolFile.cgi/afcs_PP00000184.pdf?pid=PP00000184

Category: Microarray Protocols: Amino-allyl Microarray Methods

Protocol details the preparation of fluorescently labeled target samples (aminoallyl method) and hybridization of these samples to a microarray of Agilent inkjet-deposited presynthesized oligonucleotides. The procedure requires a minimum of 3 µg of purified total RNA as starting material. - [Read Microarray Protocol for Agilent Inkjet-Deposited Presynthesized]

Microarray Protocol for Agilent Inkjet-Deposited Presynthesized Oligo Array - http://www.signaling-gateway.org/data/cgi-bin/ProtocolFile.cgi/afcs_PP00000179.pdf?pid=PP00000179

Category: Microarray Protocols: Microarray DNA Labeling Protocols

Protocol details the preparation of fluorescently labeled target samples and hybridization of these samples to a microarray of Agilent inkjet-deposited presynthesized oligonucleotides. The procedure requires a minimum of 3 µg of purified total RNA as starting material. - [Read Microarray Protocol for Agilent Inkjet-Deposited Presynthesized Oligo Array]

Microarray Protocol for Agilent Inkjet-Deposited Presynthesized Oligo Arrays - http://www.signaling-gateway.org/data/cgi-bin/ProtocolFile.cgi/afcs_PP00000179.pdf?pid=PP00000179

Category: Microarray Protocols: Microarray Hybridization Protocols

Protocol details the preparation of fluorescently labeled target samples and hybridization of these samples to a microarray of Agilent inkjet-deposited presynthesized oligonucleotides. The procedure requires a minimum of 3 µg of purified total RNA as starting material. Includes: cDNA Synthesis; Fluorescent cRNA Synthesis; cRNA Precipitation and Cleanup; cRNA Quantification; Hybridization; Washing. - [Read Microarray Protocol for Agilent Inkjet-Deposited Presynthesized Oligo Arrays]

One-Step Isolation of Plant DNA Suitable for PCR Amplification - http://pubs.nrc-cnrc.gc.ca/ispmb/ispmb19/r01-054.pdf

Category: Plant Biology Protocols: Plant DNA RNA Isolation Protocols

One step extraction for isolation of plant DNA. DNA suitable for amplification by PCR can be produced from leaf material smaller than 0.3 mm2 in less than 20 min & no tube changes. Method was tested on several plant species. Method was found to extract DNA that could be amplified without any further purification or treatment. The isolated DNA was amplified using a universal chloroplast primer set. The method was validated by comparing size of PCR products generated using standard DNA isolation. - [Read One-Step Isolation of Plant DNA Suitable for PCR Amplification]

Preparing Frozen Tissue Sections for Immunostaining Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4328

Category: Immunohistochemistry Protocols: Antibody Staining Protocols

Frozen tissue sections show good preservation of tissue structure and antigens. The principle disadvantages of using them in immunostaining are that the specimens must be stored frozen, and a special microtome, known as a cryostat, is required. Also, many clinical specimens are not available in this form, and most classic histological descriptions of tissue structure and pathology are based on the use of paraffin-embedded sections of formalin-fixed material. - [Read Preparing Frozen Tissue Sections for Immunostaining Protocol]

Protocol for Nuclear Staining of Plants for Confocal Microscopy - http://www.cshprotocols.org/cgi/content/abstract/2007/1/pdb.prot4685

Category: Microscopy Protocols: Confocal Microscopy Protocols

Protocol describes a useful way to observe the development of embryos, as well as meristems & young primordia developing at the shoot apex by confocal microscopy after staining the nuclei with propidium iodide. The number of cells can be exactly quantified in a meristem or in young primordia. Because embryonic & meristematic cells are largely filled out by their nuclei, it is easier to image only the nuclei. This method allows analysis of whole-mount material, which is more easily reconstructed. - [Read Protocol for Nuclear Staining of Plants for Confocal Microscopy]

Protocol for Protein Extraction Using Proteomics - http://www.biotech.unl.edu/proteomics/mercaptoethanol.html

Category: Protein Protocols: Protein Extraction Protocols

Protocol for Protein Extraction Using Proteomics. Extraction of proteins from plant cells that are rich in compounds that interfere with the 2-Dimensional electrophoretic separation methods such as salts, organic acids, phenolics, pigments, terpenes, among others. A common protocol used in our lab for extraction proteins from plant tissues consists in the homogenization of mortar-grounded material in liquid nitrogen with an extraction buffer. - [Read Protocol for Protein Extraction Using Proteomics]

Time-Lapse Cinematography in Living Drosophila Tissues: Preparation of Material - http://www.cshprotocols.org/cgi/content/abstract/2006/29/pdb.prot4602

Category: Microscopy Protocols: In Vivo Imaging Protocols

Sophisticated fluorescence microscopy methods & equipment, now allow cellular events to be studied at high resolution in living material. The studying of living fly tissues presents unique difficulties in keeping the cells alive, introducing fluorescent probes, & imaging through thick hazy cytoplasm. This protocol outlines the preparation of major tissue types amenable to study by time-lapse cinematography and different methods for keeping them alive. - [Read Time-Lapse Cinematography in Living Drosophila Tissues: Preparation of Material]

Time-Lapse Cinematography in Living Drosophila Tissues: Preparation of Material Protocol - http://www.cshprotocols.org/cgi/content/abstract/2006/29/pdb.prot4602

Category: Drosophila Protocols

Protocol outlines the preparation of major tissue types amenable to study by time-lapse cinematography and different methods for keeping them alive. - [Read Time-Lapse Cinematography in Living Drosophila Tissues: Preparation of Material Protocol]

Transcript Profiling by Microarray Analysis Protocol. - http://www.signaling-gateway.org/data/cgi-bin/ProtocolFile.cgi/afcs_PP00000019.pdf?pid=PP00000019

Category: Microarray Protocols: Microarray Hybridization Protocols

Protocol details the preparation of fluorescently labeled target samples and hybridization of these samples to a microarray of Agilent inkjet-deposited cDNAs. The procedure requires a minimum of 5 mg of purified total RNA as starting material. Includes: First Strand cDNA Synthesis; Second Strand cDNA Synthesis; cDNA Cleanup and Precipitation; In vitro Transcription; Cleanup and Quantification of in vitro Transcribed RNA; Fluorescent Labeling of the Target Samples. - [Read Transcript Profiling by Microarray Analysis Protocol.]

Transcript Profiling by Microarray Analysis—Agilent Protocol - http://www.signaling-gateway.org/data/cgi-bin/ProtocolFile.cgi/afcs_PP00000019.pdf?pid=PP00000019

Category: Microarray Protocols: Microarray DNA Labeling Protocols

UV Absorbance 280 nm Protein Determination - http://wolfson.huji.ac.il/purification/Protocols/OD280.html

Category: Protein Protocols: Protein Quantitation Concentration Protocols

UV Absorbance 280 nm Protein Determination. Simple and quick method to accurately quantitate total protein in purified material or approximately quantitate total protein in crude lysates or partial purified material. Quantitation of the amount of protein in a solution is possible in a simple spectrometer. Absorption of radiation in the near UV by proteins depends on the Tyr and Trp content (and to a very small extent on the amount of Phe and disulfide bonds). Dr. Mario Lebendiker - [Read UV Absorbance 280 nm Protein Determination]

Vegetative Propagation of Alfalfa by Stem Cuttings - http://www.oardc.ohio-state.edu/stockingerlab/Protocols/AlfalfaVegetativePropagationByStemCuttings.pdf

Category: Plant Biology Protocols

Alfalfa is an outcrossing species, cultivars consist of populations rather than individual homozygous or inbred lines. After only two cycles of self-pollination, severe inbreeding depression eliminates selfed individuals from populations. To obtain sufficient plant material of relative genetically uniformity (these plants will still necessarily be heterozygous) for experimental purposes, it may be necessary to propagate a single individual or clone. - [Read Vegetative Propagation of Alfalfa by Stem Cuttings]

Articles (1-10 of 13)

Genomic DNA Labeling of Microarrays Protocol

DNA microarrays are an ordered arrangement of DNA molecules complementary to genes of interest that are "spotted" by robotic equipment onto a glass slide substrate. The expression of genes in cells can be monitored with microarrays by preparing cDNA from the mRNA of cells of interest and measuring the hybridization to the microarray. This protocol describes the labeling of genomic DNA for use as a probe for hybridization to the cDNA spotted on the array.

Drosophila Cell Transfection Protocol

A simple Drosophila tissue culture cell transfection method.

Tubulin Polymerization Protocol using GTP and GMPCPP

Tubulin is polymerized into microtubules by incubating tubulin at 37°C with GTP. A nucleation seed is added when the purpose is to assay microtubule elongation. Tubulin can also be polymerized for the purposes of recycling the tubulin or labeling the microtubules with fluorescently labeled tubulin. Based on the protocol by Timothy Mitchison of Harvard University.

Probe Preparation for 22 x 40 mm DNA Microarrays

Probe Preparation for 22 x 40 mm DNA Microarrays Protocol.

Acid Guanidinium Thiocyanate RNA Isolation Phenol Chloroform Extraction

A single step RNA isolation protocol using Phenol Chloroform Extraction and Acid Guanidinium Thiocyanate. This RNA isolation method uses the fact that guanidinium thiocyanate can simultaneously lyse the cells and inactive cellular RNAses during the initial RNA isolation step allow a single step in the method.

Paraffin Embedding Protocol

Paraffin Embedding Protocol for molecular profiling. This Paraffin Embedding Protocol describes the processing of the tissues into sections following ethanol fixation. Molecular profiling (MP) is a technique that is used to visualize the global patterns of RNA expression or protein expression in various cell types and disease processes.

In Vitro Translated Xenopus Mos Kinase Assay Protocol

In Vitro Translated Xenopus Mos Kinase Assay Protocol. In response to progesterone, immature Xenopus oocytes mature to eggs that can be fertilized. The Mos protein kinase is essential for oocyte maturation, most likely due to its ability to activate the MAP kinase cascade. This MAP kinase cascade eventually leads to the activation of Cdc2/cyclin B and entry into M phase. In this protocol, tagged Mos kinase is translated in vitro, immunopurified, and used in a kinase assay.

Antibodies Phage Expression Protocol Using 96-well Microtiter Plates

A Phage display expression protocol for antibody expression in 96-well microtiter plates.

Immobilized Antigen Phage Antibody Selection Protocol

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.

Absorption Spectroscopy and Quantification of Filamentous Phage Protocol

Unlike spherical phage, such as T4 and λ, which have roughly equal weight ratios of protein to DNA, filamentous phage have about six times more protein than DNA; the protein therefore contributes substantially to the absorption spectrum.

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