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The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

Promoters maintain their relative activity levels under different growth conditions

Open access
Keren, Leeat, Zackay, Ora, Lotan‐Pompan, Maya, Barenholz, Uri, Dekel, Erez, Sasson, Vered, Aidelberg, Guy, Bren, Anat, Zeevi, Danny, Weinberger, Adina, Alon, Uri, Milo, Ron, Segal, Eran·2013·Molecular Systems Biology

Abstract

Most genes change expression levels across conditions, but it is unclear which of these changes represents specific regulation and what determines their quantitative degree. Here, we accurately measured activities of ∼900 S. cerevisiae and ∼1800 E. coli promoters using fluorescent reporters. We show that in both organisms 60–90% of promoters change their expression between conditions by a constant global scaling factor that depends only on the conditions and not on the promoter's identity. Quantifying such global effects allows precise characterization of specific regulation—promoters deviating from the global scale line. These are organized into few functionally related groups that also adhere to scale lines and preserve their relative activities across conditions. Thus, only several scaling factors suffice to accurately describe genome‐wide expression profiles across conditions. We present a parameter‐free passive resource allocation model that quantitatively accounts for the global scaling factors. It suggests that many changes in expression across conditions result from global effects and not specific regulation, and provides means for quantitative interpretation of expression profiles.

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Metadata

Authors
Keren, L., Zackay, O., Lotan‐Pompan, M., Barenholz, U., Dekel, E., Sasson, V., Aidelberg, G., Bren, A., Zeevi, D., Weinberger, A., Alon, U., Milo, R., & Segal, E.
Venue
Molecular Systems Biology
Published
2013-01
Volume
9
Issue
1
Pages
701-701
ISSN
1744-4292 (ISSN-L)
OpenAlex
W2101762601
Cited by
204
References
18
FWCI
7.93
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Promoters maintain their relative activity levels under different growth conditions. https://app.cochat.ai/papers/10.1038/msb.2013.59
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Keren, L., Zackay, O., Lotan‐Pompan, M., Barenholz, U., Dekel, E., Sasson, V., Aidelberg, G., Bren, A., Zeevi, D., Weinberger, A., Alon, U., Milo, R., & Segal, E. (2013). Promoters maintain their relative activity levels under different growth conditions. Molecular Systems Biology. https://doi.org/10.1038/msb.2013.59

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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