Alternative TSSs are co‐regulated in single cells in the mouse brain

Abstract Alternative transcription start sites (TSSs) have been extensively studied genome‐wide for many cell types and have been shown to be important during development and to regulate transcript abundance between cell types. Likewise, single‐cell gene expression has been extensively studied for m...

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Main Authors: Kasper Karlsson, Peter Lönnerberg, Sten Linnarsson
Format: Article
Language:English
Published: Springer Nature 2017-05-01
Series:Molecular Systems Biology
Subjects:
Online Access:https://doi.org/10.15252/msb.20167374
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author Kasper Karlsson
Peter Lönnerberg
Sten Linnarsson
author_facet Kasper Karlsson
Peter Lönnerberg
Sten Linnarsson
author_sort Kasper Karlsson
collection DOAJ
description Abstract Alternative transcription start sites (TSSs) have been extensively studied genome‐wide for many cell types and have been shown to be important during development and to regulate transcript abundance between cell types. Likewise, single‐cell gene expression has been extensively studied for many cell types. However, how single cells use TSSs has not yet been examined. In particular, it is unknown whether alternative TSSs are independently expressed, or whether they are co‐activated or even mutually exclusive in single cells. Here, we use a previously published single‐cell RNA‐seq dataset, comprising thousands of cells, to study alternative TSS usage. We find that alternative TSS usage is a regulated process, and the correlation between two TSSs expressed in single cells of the same cell type is surprisingly high. Our findings indicate that TSSs generally are regulated by common factors rather than being independently regulated or stochastically expressed.
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publishDate 2017-05-01
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spelling doaj-art-2e1e0de139fa4ebbb69d3a7fa228dba92025-08-20T04:03:12ZengSpringer NatureMolecular Systems Biology1744-42922017-05-0113511010.15252/msb.20167374Alternative TSSs are co‐regulated in single cells in the mouse brainKasper Karlsson0Peter Lönnerberg1Sten Linnarsson2Stanford Cancer Institute, Stanford University School of MedicineLaboratory for Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska InstitutetLaboratory for Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska InstitutetAbstract Alternative transcription start sites (TSSs) have been extensively studied genome‐wide for many cell types and have been shown to be important during development and to regulate transcript abundance between cell types. Likewise, single‐cell gene expression has been extensively studied for many cell types. However, how single cells use TSSs has not yet been examined. In particular, it is unknown whether alternative TSSs are independently expressed, or whether they are co‐activated or even mutually exclusive in single cells. Here, we use a previously published single‐cell RNA‐seq dataset, comprising thousands of cells, to study alternative TSS usage. We find that alternative TSS usage is a regulated process, and the correlation between two TSSs expressed in single cells of the same cell type is surprisingly high. Our findings indicate that TSSs generally are regulated by common factors rather than being independently regulated or stochastically expressed.https://doi.org/10.15252/msb.20167374alternative TSS usageneuronssingle‐cell RNA sequencingtranscriptionUMI
spellingShingle Kasper Karlsson
Peter Lönnerberg
Sten Linnarsson
Alternative TSSs are co‐regulated in single cells in the mouse brain
Molecular Systems Biology
alternative TSS usage
neurons
single‐cell RNA sequencing
transcription
UMI
title Alternative TSSs are co‐regulated in single cells in the mouse brain
title_full Alternative TSSs are co‐regulated in single cells in the mouse brain
title_fullStr Alternative TSSs are co‐regulated in single cells in the mouse brain
title_full_unstemmed Alternative TSSs are co‐regulated in single cells in the mouse brain
title_short Alternative TSSs are co‐regulated in single cells in the mouse brain
title_sort alternative tsss are co regulated in single cells in the mouse brain
topic alternative TSS usage
neurons
single‐cell RNA sequencing
transcription
UMI
url https://doi.org/10.15252/msb.20167374
work_keys_str_mv AT kasperkarlsson alternativetsssarecoregulatedinsinglecellsinthemousebrain
AT peterlonnerberg alternativetsssarecoregulatedinsinglecellsinthemousebrain
AT stenlinnarsson alternativetsssarecoregulatedinsinglecellsinthemousebrain