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Polyacrylamide gel electrophoresis and silver staining showing gel marker (GelMarker I; Research Genetics, Huntsville, Ala.) (lane 1) and PCR products of S. pneumoniae ATCC 6301 (lane 2), S. pneumoniae ATCC 6314 (lane 3), S. pneumoniae ATCC 10341 (lane 4), S. pneumoniae ATCC 10341 (lane 6), S. pneumoniae ATCC 33400 (lane 7), S. mutans (lane 8), S. agalactiae (lane 9), S. pyogenes (lane 11), S. equi (lane 12), E. faecalis (lane 13), and reagent blanks (lanes 5, 10 and 14).
