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FLUORESCENCE IMAGING Quantification .................................................................................................33 One-dimensional gel/blot analysis.............................................................33 Array and microplate analysis ..................................................................35 Two-dimensional protein gel analysis .......................................................36 Background correction ....................................................................................36 Image processing tools.....................................................................................40 Amersham Pharmacia Biotech image analysis software ...................................41 Chapter 5: Fluorescence applications using Amersham Pharmacia Biotech imaging systems ...........................................45 Introduction.....................................................................................................45 Detection of nucleic acids in gel ......................................................................45 Nucleic acid gel stains...............................................................................45 Instrument compatibility...........................................................................47 Typical protocol........................................................................................47 Expected results ........................................................................................49 Detection of proteins in gel..............................................................................51 Protein gel stains.......................................................................................51 Instrument compatibility...........................................................................52 Typical protocols ......................................................................................53 Protein detection in one-dimensional gels ..........................................53 Protein detection in two-dimensional gels ..........................................55 Expected results ........................................................................................58 Quantification of nucleic acids in solution ......................................................59 Dyes for quantification of nucleic acids in solution .................................59 Instrument compatibility...........................................................................60 Typical protocol........................................................................................60 Expected results ........................................................................................62 Quantification of proteins in solution..............................................................63 Dyes for quantification of proteins in solution .........................................63 Instrument compatibility...........................................................................64 Typical protocol........................................................................................64 Expected results ........................................................................................66 Southern and Northern blotting ......................................................................67 Fluorogenic substrates for Southern and Northern detection....................67 Instrument compatibility...........................................................................69 Typical protocol........................................................................................69 Expected results ........................................................................................72 Western blotting ..............................................................................................73 Western detection strategies ......................................................................73 Enzyme-amplified detection (chemifluorescence)................................73 Direct fluorescent detection................................................................75 Total protein stains for Western blots ................................................75 Instrument compatibility...........................................................................76 Typical protocols ......................................................................................77 Western blotting using a fluorogenic substrate...................................77 Western blotting using a fluorochrome-conjugated antibody .............80 Expected results ........................................................................................82 tm 63-0035-28 ● ii