Mu dX, a derivative of Mu d1 (lac Apr) which makes stable lacZ fusions at high temperature.

Abstract

We describe defective Mu phage Mu dX (Mu d1 Bx::Tn9 [lac Apr Cmr]) which is useful for insertion mutagenesis and for construction of lac operon fusions in vivo. Mu dX retains the insertion properties of Mu d1 but produces temperature-resistant lysogens and transposes at a reduced frequency. A method is described to convert existing Mu d1 insertions to Mu dX… (More)

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