Vectors for conditional gene inactivation

Drug – bio-affecting and body treating compositions – Whole live micro-organism – cell – or virus containing – Genetically modified micro-organism – cell – or virus

Reexamination Certificate

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Details

C435S320100, C435S455000, C435S463000, C514S04400A, C536S023100, C536S024100

Reexamination Certificate

active

07449179

ABSTRACT:
A method of preparing gene trapping libraries, and gene targeted cells for conditional inactivation of genes, is provided. The invention provides a vector having a mutational element cassette and a gene trap cassette, each cassette having site-specific recombination sequences.

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