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The Mechanistic Basis of Compartmentalized Gene Expression in Bacillus subtilis

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Abstract

Compartmentalized gene expression is essential for the development of multicellular organisms. Examples for compartmentalized gene expression can also be found among single-celled prokaryotes: sporulation in B. subtilis serves as a paradigm for the development of two different cell types (mother cell and prespore) from a single cell. The two different developmental programs are initiated when the transcription factor σF is released from an inhibitory complex in the smaller prespore but not in the mother cell. While the regulatory network that controls σF activity has long been known it has remained a conundrum how σF activity is restricted to the prespore. This review presents the latest model that has emerged from a mathematical analysis of the mechanism(s) by which asymmetric cell division leads to compartmentalized gene expression.

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Correspondence to Dagmar Iber.

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Iber, D. The Mechanistic Basis of Compartmentalized Gene Expression in Bacillus subtilis. Nat Comput 4, 325–338 (2005). https://doi.org/10.1007/s11047-005-3670-y

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