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Part I.3 Methods in Molecular Cell Biology 304515 Molecular Biology of the Cell Teacher: Montarop Yamabhai http://www.sut.ac.th/AgriTech/Biotech/mywebpage.html
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Manipulating cells in the culture Isolating cells –Disrupt extracellular matrix with proteolytic enzymes or EDTA –Fluorescence-activated cell sorter Growing cells in culture dishes –Primary cell culture Prepare directly from tissues of an organism –Cell line Immortalized, can grow indefinitely
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Fractionation of Cells Organelles and macromolecules can be separated by ultracentrifugation There are 2 types of sedimentations –Velocity sedimentation –Equilibrium sedimentation
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DNA Engineeting
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Analyzing Protein Structure and Function Chromatography / HPLC / FPLC –Ion-exchange/hydrophobic chromatography –Gel-filtration chromatography –Affinity chromatography Gel Electrophoresis Western Blotting Mass spectrometry X-ray crystallography/NMR spectroscopy Protein-protein interaction Protein-DNA interaction
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Determination of size and subunit of a protein by SDS polyacrylamide-Gel Electrophoresis
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Determination of 3D Structure of the Proteins
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The study of protein-protein interacton Affinity Chromatography and Immunoprecipitation Yeast Two-Hybrid System Phage Display Method
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Studying gene expression and function Genetic Screen Microarrays Targeted mutations
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Visualizing Cells
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Fluorescence Microscopy
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Electron Microscopy Transmission electron microscopy TEM Scanning electron microscopy SEM Electron microscope tomography
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Visualize molecules in living cells Visualize ion with light-emiting indicator Visualize GFP-tagged proteins Trace molecules in cells by pulse-chase experiment
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