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scSLAM-seq reveals core features of transcription dynamics in single cells.
Erhard, Florian Baptista, Marisa A P Krammer, Tobias Hennig, Thomas Lange, Marius Arampatzi, Panagiota Jürges, Christopher S Theis, Fabian J Saliba, Antoine-Emmanuel Dölken, Lars
Erhard, Florian
Baptista, Marisa A P
Krammer, Tobias
Hennig, Thomas
Lange, Marius
Arampatzi, Panagiota
Jürges, Christopher S
Theis, Fabian J
Saliba, Antoine-Emmanuel
Dölken, Lars
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2019-01-01
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Single-cell RNA sequencing (scRNA-seq) has highlighted the important role of intercellular heterogeneity in phenotype variability in both health and disease1. However, current scRNA-seq approaches provide only a snapshot of gene expression and convey little information on the true temporal dynamics and stochastic nature of transcription. A further key limitation of scRNA-seq analysis is that the RNA profile of each individual cell can be analysed only once. Here we introduce single-cell, thiol-(SH)-linked alkylation of RNA for metabolic labelling sequencing (scSLAM-seq), which integrates metabolic RNA labelling2, biochemical nucleoside conversion3 and scRNA-seq to record transcriptional activity directly by differentiating between new and old RNA for thousands of genes per single cell. We use scSLAM-seq to study the onset of infection with lytic cytomegalovirus in single mouse fibroblasts. The cell-cycle state and dose of infection deduced from old RNA enable dose-response analysis based on new RNA. scSLAM-seq thereby both visualizes and explains differences in transcriptional activity at the single-cell level. Furthermore, it depicts 'on-off' switches and transcriptional burst kinetics in host gene expression with extensive gene-specific differences that correlate with promoter-intrinsic features (TBP-TATA-box interactions and DNA methylation). Thus, gene-specific, and not cell-specific, features explain the heterogeneity in transcriptomes between individual cells and the transcriptional response to perturbations.
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Nature. 2019 Jul;571(7765):419-423. doi: 10.1038/s41586-019-1369-y. Epub 2019 Jul 10.
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Article
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en
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1476-4687
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Attribution-NonCommercial-ShareAlike 4.0 International