Abstract: Methods of double-stranded nucleic acid sequence determination and assembly that are able to identify insertions, deletions, repeat region sizes and genomic rearrangements, for example, are disclosed herein, which can use relatively large labeled nucleic acid fragments to analyze the structure of even larger genetic regions. In some embodiments these methods involve the use of certain parameters which unexpectedly improve overall method performance. In some embodiments these methods involve sample labeling that does not result in the formation of single-stranded nucleic acid fragment labeling intermediaries.

Abstract: Methods of double-stranded nucleic acid sequence determination and assembly that are able to identify insertions, deletions, repeat region sizes and genomic rearrangements, for example, are disclosed herein, which can use relatively large labeled nucleic acid fragments to analyze the structure of even larger genetic regions. In some embodiments these methods involve the use of certain parameters which unexpectedly improve overall method performance. In some embodiments these methods involve sample labeling that does not result in the formation of single-stranded nucleic acid fragment labeling intermediaries.

Abstract: Methods of double-stranded nucleic acid sequence determination and assembly that are able to identify insertions, deletions, repeat region sizes and genomic rearrangements, for example, are disclosed herein, which can use relatively large labeled nucleic acid fragments to analyze the structure of even larger genetic regions. In some embodiments these methods involve the use of certain parameters which unexpectedly improve overall method performance. In some embodiments these methods involve sample labeling that does not result in the formation of single-stranded nucleic acid fragment labeling intermediaries.

Abstract: Methods are provided for detecting and quantitating molecules using fluidics. In preferred embodiments, the methods comprise analyzing blood to detect the presence of circulating DNA or cells from a fetus or tumor.

Abstract: Methods for single-molecule preparation and analysis are disclosed herein. The methods can, for example, be used for isolating and analyzing DNA from various biological samples.

Abstract: Methods for single-molecule preparation and analysis are disclosed herein. The methods can, for example, be used for isolating and analyzing DNA from various biological samples.

Abstract: This invention pertains to a method of assessing the ability of a compound to block or activate cell proliferation by assessing its effect on a cellular signal transduction pathway whose activation results in cell proliferation. In the present method, a cell-free system is used to assess the ability of a compound to block or activate a signal transduction pathway which is activated by binding of a growth factor to a cell surface receptor with intrinsic tyrosine kinase activity and whose activation results in proliferation of the cells to which growth factor has bound. Cellular signal transduction involves multiple pathways, each consisting of one or more steps emanating from a specific protein bound to a single receptor which is specific for that protein and located on the cell surface or within the cell.