Super-promoters: Cooperativity between juxtaposed promoters
Abstract The coordination of transcription through enhancers and promoters is a fundamental process that has a central role in development and disease 1–3. Convergent transcription, i.e., the collision of sense and antisense transcription, is ubiquitous in mammalian genomes 4–8 and believed to diminish RNA expression 9,10. Recently, antisense transcription downstream of promoters was found to be surprisingly prevalent 11–13. However, functional characteristics of promoters with convergent transcription are unknown. Here, we show that convergent transcription marks an unexpectedly cooperative promoter constellation we call super-promoters. By assessing transcriptional dynamic systems, we identified strongly cooperative constituent promoters that are connected through a distinct chromatin structure. Within these super-promoter constellations transcription factors can regulate both constituting promoters by binding to only one of them. Super-promoters comprise about a fourth of all active transcript starts and initiate 5’-overlapping antisense RNAs, an RNA class previously believed to be rare 4. Visualization of nascent RNA molecules provides evidence for convergent co-transcription at these loci. Our results demonstrate that super-promoters substantially expand the cis-regulatory repertoire and reveal limitations of the standing model of transcription interference. Together, our study revises the promoter architecture of many genes and calls for adjusting the promoter concept..
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Preprint| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
ResearchSquare.com - (2024) vom: 17. Apr. Zur Gesamtaufnahme - year:2024 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wiechens, Elina [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| doi: |
10.21203/rs.3.rs-2803901/v1 |
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| 520 | |a Abstract The coordination of transcription through enhancers and promoters is a fundamental process that has a central role in development and disease 1–3. Convergent transcription, i.e., the collision of sense and antisense transcription, is ubiquitous in mammalian genomes 4–8 and believed to diminish RNA expression 9,10. Recently, antisense transcription downstream of promoters was found to be surprisingly prevalent 11–13. However, functional characteristics of promoters with convergent transcription are unknown. Here, we show that convergent transcription marks an unexpectedly cooperative promoter constellation we call super-promoters. By assessing transcriptional dynamic systems, we identified strongly cooperative constituent promoters that are connected through a distinct chromatin structure. Within these super-promoter constellations transcription factors can regulate both constituting promoters by binding to only one of them. Super-promoters comprise about a fourth of all active transcript starts and initiate 5’-overlapping antisense RNAs, an RNA class previously believed to be rare 4. Visualization of nascent RNA molecules provides evidence for convergent co-transcription at these loci. Our results demonstrate that super-promoters substantially expand the cis-regulatory repertoire and reveal limitations of the standing model of transcription interference. Together, our study revises the promoter architecture of many genes and calls for adjusting the promoter concept. | ||
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| 700 | 1 | |a Riege, Konstantin |e verfasserin |4 aut | |
| 700 | 1 | |a Bömmel, Alena van |e verfasserin |0 (orcid)0000-0002-8434-8586 |4 aut | |
| 700 | 1 | |a Schwab, Katjana |e verfasserin |0 (orcid)0000-0002-6916-2900 |4 aut | |
| 700 | 1 | |a Görlich, Ivonne |e verfasserin |4 aut | |
| 700 | 1 | |a Bens, Martin |e verfasserin |0 (orcid)0000-0001-7940-6668 |4 aut | |
| 700 | 1 | |a Schwarz, Robert |e verfasserin |0 (orcid)0000-0002-0654-0943 |4 aut | |
| 700 | 1 | |a Sahm, Arne |e verfasserin |4 aut | |
| 700 | 1 | |a Groth, Marco |e verfasserin |4 aut | |
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| 700 | 1 | |a Fischer, Martin |e verfasserin |0 (orcid)0000-0002-3429-1876 |4 aut | |
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