Chemistry: molecular biology and microbiology – Process of mutation – cell fusion – or genetic modification
Reexamination Certificate
2011-07-05
2011-07-05
Joike, Michele K (Department: 1636)
Chemistry: molecular biology and microbiology
Process of mutation, cell fusion, or genetic modification
C435S455000, C435S441000, C435S446000, C536S023100
Reexamination Certificate
active
07972853
ABSTRACT:
The present invention is directed generally to reduction or inactivation of gene function or gene expression in cells in vitro and in multicellular organisms. The invention encompasses methods for mutating cells using a combination of mutagens, particularly wherein at least one mutagen is an insertional mutagen, to achieve homozygous gene mutation or mutation of multiple genes required cumulatively to achieve a phenotype to create knock-outs, knock-downs, and other modifications in the same cell. The invention is also directed to cells (and libraries thereof) and organisms created by the methods of the invention, including those in which at least one of the genes created by insertional mutagenesis is tagged by means of the insertion sequences thereby allowing identification of the mutated gene(s). The invention is also directed to libraries of mutated cells and their uses. The invention is also directed to methods of identifying mutations with methods of the invention, in cells (and libraries thereof) and organisms, by means of the insertional tag.
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Harrington John Joseph
Jackson Paul David
Jiang Li
ABT Holding Company
Joike Michele K
Tarolli, Sundheim Covell & Tummino LLP
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