The field of the invention is activating gene expression or causing over-expression of a gene by recombination methods in situ. The invention relates to expresssing an endogenous gene in a cell at levels higher than those normally found in the cell. Expression of the gene is activated or increased following...http://www.google.com.au/patents/US6897066?utm_source=gb-gplus-sharePatent US6897066 - Compositions and methods for non-targeted activation of endogenous genes