{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T12:21:53Z","timestamp":1767961313713,"version":"3.49.0"},"reference-count":41,"publisher":"Oxford University Press (OUP)","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,4,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Background: Short regulating RNAs guide many cellular processes. Compared with transcription factor proteins they appear to provide more specialized control and their deletions are less frequently lethal.<\/jats:p><jats:p>Results: We find large differences between computationally predicted lists of human microRNA (miRNA)\u2013target pairs. Instead of integrating these lists we use the two most accurate of them. Next, we construct the co-regulation network of human miRNAs as nodes by computing the correlation (link weight) between the gene silencing scores of individual miRNAs. In this network, we locate groups of tightly co-regulating nodes (modules). Despite explicitly allowing overlaps the co-regulation modules of miRNAs are well separated. We use the modules and miRNA co-expression data to define and compute miRNA essentiality. Instead of focusing on particular biological functions we identify a miRNA as essential, if it has a low co-expression with the miRNAs in its module. This may be thought of as having many workers performing the same tasks together in one place (non-essential miRNAs) as opposed to a single worker performing those tasks alone (essential miRNA).<\/jats:p><jats:p>Conclusions: On the system level, we quantitatively confirm previous findings about the specialized control provided by miRNAs. For knock-out tests we list the groups of our predicted most and least essential miRNAs. In addition, we provide possible explanations for (i) the low number of individually essential miRNAs in Caenorhabdtits elegans and (ii) the high number of ubiquitous miRNAs influencing cell and tissue-specific miRNA expression patterns in mouse and human.<\/jats:p><jats:p>Contact: \u00a0fij@elte.hu<\/jats:p><jats:p>Supplementary information: \u00a0Supplementary data are available at Bioinformatics online.<\/jats:p>","DOI":"10.1093\/bioinformatics\/btp018","type":"journal-article","created":{"date-parts":[[2009,1,9]],"date-time":"2009-01-09T01:25:05Z","timestamp":1231464305000},"page":"1063-1069","source":"Crossref","is-referenced-by-count":36,"title":["Human microRNAs co-silence in well-separated groups and have different predicted essentialities"],"prefix":"10.1093","volume":"25","author":[{"given":"G\u00e1bor","family":"Boross","sequence":"first","affiliation":[{"name":"1 Department of Biological Physics, E\u00f6tv\u00f6s Lor\u00e1nd University and 2Statistical and Biological Physics Research Group and CellCom RET at the Hungarian Academy of Sciences, P\u00e1zm\u00e1ny P\u00e9ter s\u00e9t\u00e1ny 1A, H-1117 Budapest, Hungary"},{"name":"1 Department of Biological Physics, E\u00f6tv\u00f6s Lor\u00e1nd University and 2Statistical and Biological Physics Research Group and CellCom RET at the Hungarian Academy of Sciences, P\u00e1zm\u00e1ny P\u00e9ter s\u00e9t\u00e1ny 1A, H-1117 Budapest, Hungary"}]},{"given":"Katalin","family":"Orosz","sequence":"additional","affiliation":[{"name":"1 Department of Biological Physics, E\u00f6tv\u00f6s Lor\u00e1nd University and 2Statistical and Biological Physics Research Group and CellCom RET at the Hungarian Academy of Sciences, P\u00e1zm\u00e1ny P\u00e9ter s\u00e9t\u00e1ny 1A, H-1117 Budapest, Hungary"},{"name":"1 Department of Biological Physics, E\u00f6tv\u00f6s Lor\u00e1nd University and 2Statistical and Biological Physics Research Group and CellCom RET at the Hungarian Academy of Sciences, P\u00e1zm\u00e1ny P\u00e9ter s\u00e9t\u00e1ny 1A, H-1117 Budapest, Hungary"}]},{"given":"Ill\u00e9s J.","family":"Farkas","sequence":"additional","affiliation":[{"name":"1 Department of Biological Physics, E\u00f6tv\u00f6s Lor\u00e1nd University and 2Statistical and Biological Physics Research Group and CellCom RET at the Hungarian Academy of Sciences, P\u00e1zm\u00e1ny P\u00e9ter s\u00e9t\u00e1ny 1A, H-1117 Budapest, Hungary"}]}],"member":"286","published-online":{"date-parts":[[2009,1,8]]},"reference":[{"key":"2023051607020868000_B1","doi-asserted-by":"crossref","first-page":"1021","DOI":"10.1093\/bioinformatics\/btl039","article-title":"CFinder: locating cliques and overlapping modules in biological networks","volume":"22","author":"Adamcsek","year":"2006","journal-title":"Bioinformatics"},{"key":"2023051607020868000_B2","doi-asserted-by":"crossref","first-page":"450","DOI":"10.1038\/nrg2102","article-title":"Network motifs: theory and experimental approaches","volume":"8","author":"Alon","year":"2007","journal-title":"Nat. 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