Need lacI+ F' with NO lacZ (alpha).

the End jgraham at
Fri Oct 30 11:53:48 EST 1992


Are any of you using an E. Coli with a lac mutation that deletes all the lacZ 
coding region while leaving the repressor and its promoter ? I don't want
any complemeting fragments left around.

Episomes or host chromosome deletions are both suitable, as well as lac IQ 

J. Graham
Biology and Chemistry Depts.
Indiana University -Bloomington
jgraham at

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