Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells

Summary: Mitotic bookmarkers label key gene loci on highly condensed chromosomes to preserve cell fate memory across mitosis. Here, we present a protocol for identifying binding sites of mitotic bookmarkers (BISMIBs) in developing tissues and cultured cells. We describe a workflow for isolating mito...

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Main Authors: Yuying Shen, Jie Liu, Yan Song
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:STAR Protocols
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666166725002643
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author Yuying Shen
Jie Liu
Yan Song
author_facet Yuying Shen
Jie Liu
Yan Song
author_sort Yuying Shen
collection DOAJ
description Summary: Mitotic bookmarkers label key gene loci on highly condensed chromosomes to preserve cell fate memory across mitosis. Here, we present a protocol for identifying binding sites of mitotic bookmarkers (BISMIBs) in developing tissues and cultured cells. We describe a workflow for isolating mitotic and interphase cells from Drosophila larval brains and HEK293T cells independent of cell-cycle synchronization. We further detail procedures for low-input in vivo CUT&Tag (Cleavage Under Targets & Tagmentation) sequencing. This protocol is applicable for identifying binding sites for mitotically retained factors in developing tissues.For complete details on the use and execution of this protocol, please refer to Shen et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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publishDate 2025-06-01
publisher Elsevier
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series STAR Protocols
spelling doaj-art-7ff420780d1a43fdaf7d9dae0705efe52025-08-20T02:17:28ZengElsevierSTAR Protocols2666-16672025-06-016210385810.1016/j.xpro.2025.103858Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cellsYuying Shen0Jie Liu1Yan Song2State Key Laboratory of Membrane Biology, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China; Corresponding authorState Key Laboratory of Membrane Biology, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, ChinaState Key Laboratory of Membrane Biology, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Corresponding authorSummary: Mitotic bookmarkers label key gene loci on highly condensed chromosomes to preserve cell fate memory across mitosis. Here, we present a protocol for identifying binding sites of mitotic bookmarkers (BISMIBs) in developing tissues and cultured cells. We describe a workflow for isolating mitotic and interphase cells from Drosophila larval brains and HEK293T cells independent of cell-cycle synchronization. We further detail procedures for low-input in vivo CUT&Tag (Cleavage Under Targets & Tagmentation) sequencing. This protocol is applicable for identifying binding sites for mitotically retained factors in developing tissues.For complete details on the use and execution of this protocol, please refer to Shen et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.http://www.sciencedirect.com/science/article/pii/S2666166725002643Sequence analysisCell BiologyCell cultureSingle CellFlow CytometryGenomics
spellingShingle Yuying Shen
Jie Liu
Yan Song
Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells
STAR Protocols
Sequence analysis
Cell Biology
Cell culture
Single Cell
Flow Cytometry
Genomics
title Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells
title_full Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells
title_fullStr Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells
title_full_unstemmed Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells
title_short Protocol for identifying genomic binding sites of mitotic bookmarkers in Drosophila neural stem cells and cultured mammalian cells
title_sort protocol for identifying genomic binding sites of mitotic bookmarkers in drosophila neural stem cells and cultured mammalian cells
topic Sequence analysis
Cell Biology
Cell culture
Single Cell
Flow Cytometry
Genomics
url http://www.sciencedirect.com/science/article/pii/S2666166725002643
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AT jieliu protocolforidentifyinggenomicbindingsitesofmitoticbookmarkersindrosophilaneuralstemcellsandculturedmammaliancells
AT yansong protocolforidentifyinggenomicbindingsitesofmitoticbookmarkersindrosophilaneuralstemcellsandculturedmammaliancells