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Cited by 512

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Global and Local Architecture of the Mammalian microRNA–Transcription Factor Regulatory Network

Open access
Shalgi, Reut, Lieber, Daniel, Oren, Moshe, Pilpel, Yitzhak·2007·PLoS Computational Biology

Abstract

microRNAs (miRs) are small RNAs that regulate gene expression at the posttranscriptional level. It is anticipated that, in combination with transcription factors (TFs), they span a regulatory network that controls thousands of mammalian genes. Here we set out to uncover local and global architectural features of the mammalian miR regulatory network. Using evolutionarily conserved potential binding sites of miRs in human targets, and conserved binding sites of TFs in promoters, we uncovered two regulation networks. The first depicts combinatorial interactions between pairs of miRs with many shared targets. The network reveals several levels of hierarchy, whereby a few miRs interact with many other lowly connected miR partners. We revealed hundreds of "target hubs" genes, each potentially subject to massive regulation by dozens of miRs. Interestingly, many of these target hub genes are transcription regulators and they are often related to various developmental processes. The second network consists of miR-TF pairs that coregulate large sets of common targets. We discovered that the network consists of several recurring motifs. Most notably, in a significant fraction of the miR-TF coregulators the TF appears to regulate the miR, or to be regulated by the miR, forming a diversity of feed-forward loops. Together these findings provide new insights on the architecture of the combined transcriptional-post transcriptional regulatory network.

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Metadata

Authors
Shalgi, R., Lieber, D., Oren, M., & Pilpel, Y.
Venue
PLoS Computational Biology
Published
2007-07-13
Volume
3
Issue
7
Pages
e131
ISSN
  • 1553-734X (ISSN-L)
  • 1553-7358
OpenAlex
W1980389572
Cited by
512
References
50
FWCI
10.50
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Global and Local Architecture of the Mammalian microRNA–Transcription Factor Regulatory Network. https://app.cochat.ai/papers/10.1371/journal.pcbi.0030131
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Shalgi, R., Lieber, D., Oren, M., & Pilpel, Y. (2007). Global and Local Architecture of the Mammalian microRNA–Transcription Factor Regulatory Network. PLoS Computational Biology. https://doi.org/10.1371/journal.pcbi.0030131

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

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.