Functional limits of the araIc promoter suggest an additional regulatory site for araBAD expression.
AUTOR(ES)
Horwitz, A H
RESUMO
The araBAD promoter is defined, in part, by two types of cis-acting constitutive mutations, araIc at position -35 and araXc at position -10. Subcloning experiments demonstrated that the araIc and araIcXc promoters require DNA sequence information out to position -53 to -56 for maximum constitutive expression. This is 8 to 10 base pairs more DNA than is generally thought to be necessary for RNA polymerase interaction. The -53 to -56 region is required for glucose repression, suggesting that an additional factor interacts in this region and is necessary for maximum expression.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=215391Documentos Relacionados
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