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Gene. 1983 Oct;24(2-3):171-7.

Chloramphenicol-inducible gene expression in Bacillus subtilis.


A cloned Bacillus pumilus cat gene expresses chloramphenicol-inducible chloramphenicol acetyltransferase activity in Bacillus subtilis. The chloramphenicol inducibility trait was shown to be determined by a 234-bp region of the cloned DNA. Nucleotide sequence analysis of this 234-bp segment indicated that the cat ribosome-binding site occurs within a 40-bp region containing 14-bp terminal inverted repeat sequences. Transcription of this region into RNA should sequester the cat ribosome-binding site in a stable stem-loop conformation. Chloramphenicol-mediated destabilization of the stem-loop is suggested as the basis for the chloramphenicol inducibility phenotype.

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