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. 2010 Jul 14;38(20):6841–6856. doi: 10.1093/nar/gkq612

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© The Author(s) 2010. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Distribution of different sensing classes (4,5) of transcription factors across conditions, showing proportions of each class which are found to be active. Different conditions were found to exhibit different combinations of sensing classes depending on their growth environment, but the associated hypergeometric distribution P-values show that there is very little enrichment of sensing classes across conditions beyond internal DNA-bending (IDB) TFs. The remaining classes are: internal sensing metabolites (ISMs), hybrid (H; sensing transported and synthesized metabolites), external sensing two-components (ETCs) and external sensing transported metabolites (ETMs).