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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Molecular biology--Laboratory manuals. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (227 pages)
    Edition: 3rd ed.
    ISBN: 9780123855459
    DDC: 572.8078
    Language: English
    Note: Front Cover -- Molecular Biology Techniques: A Classroom Laboratory Manual -- Copyright Page -- Contents -- Preface -- About the Authors -- Acknowledgements -- Note to Instructors -- Instrumentation -- Nomenclature -- Introduction -- Conceptual Outline for Experiments -- Experimental Procedures -- Laboratory Safety -- General Operating Procedures -- 1 - Manipulation of DNA -- Reference -- Lab Session 1. Getting Oriented: Practicing with Micropipettes -- Station Checklist -- Micropipetting -- Micropipetting Self-Test -- Laboratory Exercise: BSA Serial Dilutions and Nitrocellulose Spot Test -- Preparing BSA Dilutions -- Performing a Nitrocellulose Spot Test -- Discussion Questions -- Lab Session 2. Purification and Digestion of Plasmid (Vector) DNA -- Introduction to Plasmid Purification -- Alkaline Lysis -- Silica Adsorption -- DNA Quantification -- Introduction to Expression Vectors -- Principles of Gene Expression -- Expression Vectors -- Orientation and Reading Frame -- Orientation -- Reading Frame -- Laboratory Exercises -- Alkaline Lysis and Silica Adsorption Protocol -- DNA Quantification -- Restriction Digestion of Expression Vector DNA pET-41a, a GST Fusion Protein Vector -- Discussion Questions -- Reference -- Lab Session 3. PCR Amplification of egfp and Completion of Vector Preparation -- Introduction -- What is the Polymerase Chain Reaction (PCR)? -- Why Clone by PCR? -- TA Cloning -- PCR Cloning by Incorporation of Restriction Sites -- Cloning Synthetic Genes -- Laboratory Exercises -- PCR Amplification of egfp from the pEGFP-N1 Plasmid -- PCR Protocol -- Clean-up of Digested pET-41a Vector -- Agarose Gel Electrophoresis -- Discussion Questions -- References -- Lab Session 4. Preparation of Insert DNA (egfp) PCR Product -- Check PCR Reactions on an Agarose Gel -- Spin Column Cleanup of PCR Product -- Quantification of egfp PCR Product. , Restriction Digestion of egfp PCR Product -- Removing Enzymes and Cleaning Digested DNA Using a Spin Column -- Discussion Questions -- Lab Session 5. DNA Ligation and Transformation of Escherichia coli -- Introduction -- Ligation -- Transformation -- Laboratory Exercises -- Ligations and Ligation Controls -- Divalent Cation-Mediated Transformation -- Electrophoresis of Ligation Reactions -- Discussion Questions -- Reference -- 2 - Screening Transformants -- Lab Session 6. Colony Hybridization -- Lab Session 6A. Interim Laboratory Session -- Introduction -- Laboratory Exercises -- Counting Transformants and Replica Plating -- Replica Plating -- Lab Session 6B. Colony Hybridization: Monoclonal Antibody Probe -- Introduction -- Laboratory Exercises -- Colony Hybridization with an α-EGFP Monoclonal Antibody Probe: Part 1 -- Lab Session 6. Discussion Questions -- Lab Session 7. Characterization of Recombinant Clones: Part 1 -- Lab Session 7A. Completion of Colony Hybridization with a Monoclonal Antibody Probe -- Introduction -- Laboratory Exercise -- Colony Hybridization with an α-EGFP Monoclonal Antibody Probe: Part 2 -- Lab Session 7B. PCR Screening -- Introduction -- Laboratory Exercise -- Polymerase Chain Reaction Screen for Recombinant Clones -- Lab Session 7C. Prepare Fresh Replica Plate -- Lab Session 7. Discussion Questions -- Lab Session 8. Characterization of Recombinant Clones: Part 2 -- Lab Session 8A. Interim Laboratory Session -- Laboratory Exercise -- Inoculate Cultures for Minipreps -- Lab Session 8B. Analysis of PCR Screen Results -- Introduction -- Laboratory Exercise -- Gel Electrophoresis and Analysis of PCR Samples from Last Week -- Lab Session 8C. Isolation of Miniprep DNA from Potential Transformants -- Introduction -- Laboratory Exercise -- Isolation of Miniprep DNA from Potential Transformants. , Plasmid DNA Purification Using the QIAprep Spin Miniprep Kit and a Microcentrifuge -- Lab Session 8D. Visualization of Green Fluorescent Protein: Part 1 -- Introduction -- Laboratory Exercise -- Green Fluorescence Assay and Preparation of a Fresh Master Plate -- Lab Session 8. Discussion Questions -- Lab Session 9. Characterization of Recombinant Clones: Part 3 -- Lab Session 9A. Characterization of Miniprep DNA from Potential Transformants (Restriction Enzyme Analysis of Putative Transformants) -- Introduction -- Laboratory Exercise -- Restriction Enzyme Analysis of Miniprep DNA -- Lab Session 9B. Visualization of Green Fluorescent Protein: Part 2 -- Introduction -- Laboratory Exercise -- Visualization of Clones Expressing the Enhanced Green Fluorescent Protein on IPTG Plates -- Lab Session 9C. Computational Analysis of DNA Sequence from a Positive Clone: Part 1 -- Introduction -- Laboratory Exercise -- References -- Lab Session 9. Discussion Questions -- Lab Session 10. Computational Analysis of DNA Sequence from a Positive Clone: Part 2 -- Introduction -- Laboratory Exercise -- Discussion Questions -- Reference -- 3 - Expression, Detection and Purification of Recombinant Proteins from Bacteria -- Lab Session 11. Expression of Fusion Protein from Positive Clones, SDS-PAGE and Western Blot: Part 1 -- Lab Session 11A. Interim Laboratory Session -- Laboratory Exercise -- Inoculate Cultures for SDS-PAGE -- Lab Session 11B. Expression of Fusion Protein from Positive Clones, SDS-PAGE and Western Blot -- Introduction -- Laboratory Exercise -- SDS-PAGE and Western Blot: Part 1 -- Reference -- Lab Session 11. Discussion Questions -- Lab Session 12. Expression of Fusion Protein from Positive Clones, SDS-PAGE and Western Blot: Part 2 -- Introduction -- Laboratory Exercises -- SDS-PAGE and Western Blot: Part 2 -- Replica Plate Positive Clone. , Discussion Questions -- Lab Session 13. Extraction of Recombinant Protein from Escherichia coli Using a Glutathione Affinity Column -- Lab Session 13A. Interim Laboratory Session -- Laboratory Exercise -- Inoculate Cultures for Protein Purification -- Lab Session 13B. Extraction of Recombinant Protein from Escherichia coli and Purification Using a Glutathione Affinity Column -- Introduction -- Laboratory Exercises -- Growing Bacterial Suspension Cultures for Fusion Protein Purification -- Harvesting IPTG-Induced Cultures -- Breaking Open Bacterial Cells -- Removing Insoluble Debris from the Crude Homogenate -- Purifying Protein by Affinity Chromatography -- Lab Session 13. Discussion Questions -- Lab Session 14. Analysis of Purification Fractions -- Lab Session 14A. Analysis of Purification Fractions -- Introduction -- Laboratory Exercises -- SDS-PAGE of Purified Fusion Protein -- Fluorescence Analysis of Affinity Purification -- Lab Session 14B. Replica Plate Positive Clone -- Lab Session 14. Discussion Questions -- 4 - Analysis of mRNA Levels -- Challenges of Working with RNA -- References -- Lab Session 15. Total RNA Purification -- Lab Session 15A. Interim Laboratory Session -- Laboratory Exercise -- Inoculate Cultures for RNA Purification -- Lab Session 15B. Total RNA Purification -- Introduction -- Laboratory Exercises -- Purification of Total RNA -- DNase Digestion -- Quantification of RNA -- References -- Lab Session 15. Discussion Questions -- Lab Session 16. Analysis of gst::egfp mRNA Levels by RT-qPCR: Part 1 -- Introduction -- Reverse Transcription -- Quantitative PCR -- Laboratory Exercises -- Reverse Transcription -- Quantitative PCR (qPCR) -- Discussion Questions -- Reference -- Lab Session 17. Analysis of gst::egfp mRNA Levels by RT-qPCR: Part 2 -- Introduction -- Laboratory Exercise -- Relative Quantification of gst::egfp Levels. , References -- Discussion Questions -- Lab Session 18. Analysis of gst::egfp mRNA Levels by Semi-Quantitative RT-PCR: Part 1 -- Introduction -- Laboratory Exercises -- Reverse Transcription (RT) -- Semi-Quantitative PCR -- Discussion Questions -- Lab Session 19. Analysis of gst::egfp mRNA Levels by Semi-Quantitative RT-PCR: Part 2 -- Introduction -- Laboratory Exercises -- Agarose Gel Electrophoresis -- Quantification -- Discussion Questions -- Reference -- Appendix 1: Equipment -- Shared Equipment -- Appendix 2: Prep List -- Notes to Prep Staff -- Plasmids and E. coli Host Strains -- Antibiotics -- Aliquots -- Bacterial Waste -- Autoclaving -- General Lab Preparation -- Students -- Supplies and Reagents -- Supplies and Reagents for General Use -- Recipes for General Use -- LAB SESSION 1 -- BSA Serial Dilutions and Nitrocellulose Spot Test -- Recipes -- LAB SESSION 2 -- Purification and Digestion of Plasmid (Vector) DNA -- LAB SESSION 3 -- PCR Amplification of egfp from pEGFP-N1 -- Clean-up and Visualization of Digested pET-41a Vector -- Recipes -- LAB SESSION 4 -- Preparation of Insert DNA (egfp) PCR Product -- LAB SESSION 5 -- DNA Ligation and Transformation of Escherichia coli -- LAB SESSION 6 -- Interim Lab -- LAB SESSION 6 -- Colony Hybridization: Monoclonal Antibody Probe -- Recipes -- LAB SESSION 7 -- Characterization of Recombinant Clones -- Recipes -- Chloronaphthol Stock Solution -- Peroxide Stain -- LAB SESSION 8 -- Interim Lab -- LAB SESSION 8 -- Characterization of Recombinant Clones: Part 2 -- LAB SESSION 9 -- Characterization of Recombinant Clones: Part 3 -- LAB SESSION 10 -- Computational Analysis of DNA Sequence from a Positive Clone: Part 2 -- LAB SESSION 11 -- Interim Lab -- LAB SESSION 11 -- Expression of Fusion Protein from Positive Clones, SDS-PAGE and Western Blot: Part 1 -- Recipes -- LAB SESSION 12. , Expression of Fusion Protein from Positive Clones, SDS-PAGE and Western Blot: Part 2.
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  • 2
    ISSN: 1460-9568
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: RGS proteins regulate G protein-mediated signalling pathways through direct interaction with the Gα subunits and facilitation of GTP hydrolysis. An RGS subfamily consisting of RGS 6, 7, 9, and 11 also interacts with the G protein β subunit Gβ5 via a characteristic Gγ-like domain. Thus far, these complexes were found only in neurons, with RGS7 being the most widely distributed in the brain. Here we confirm the expression of RGS7 in spinal neurons and show as a novel finding that following an experimental spinal cord injury in rats, expression of RGS7 is induced in a subpopulation of other cells. Immunofluorescent confocal microscopy using a series of cell specific antibodies identified these RGS7 positive cells as activated microglia and/or invading peripheral macrophages. To rule out interference from the adjacent neurons and confirm the presence of RGS7-Gβ5 complex in inflammatory cells, we performed immunocytochemistry, RT-PCR, Western blot, and immunoprecipitation using microglial (BV2) and peripheral macrophage (RAW) cell lines. Expression of RGS7 mRNA and protein are nearly undetectable in non-stimulated BV2 and RAW cells, but remarkably increased after stimulation with LPS or TNF-α In addition, RGS7-positive cells were also found in the perinodular rim in the rat spleen. Our findings show that RGS7-Gβ5 complex is expressed in immunocompetent cells such as resident microglia and peripheral macrophages following spinal cord injury. This expression might contribute to the post-traumatic inflammatory responses in the central nervous system.
    Type of Medium: Electronic Resource
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