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Mutagenesis of the Bacillus subtilis "-12, -24" promoter of the levanase operon and evidence for the existence of an upstream activating sequence. |
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| Authors: | I Martin-Verstraete M Débarbouillé A Klier G Rapoport |
| Affiliation: | URA 1300 du Centre National de la Recherche Scientifique, Institut Pasteur, Département des Biotechnologies, Paris, France. |
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