Antibody-free profiling of transcription factor occupancy during early embryogenesis by FitCUT&RUN.

Antibody-free profiling of transcription factor occupancy during early embryogenesis by FitCUT&RUN.
复制标题

DOI:
10.1101/gr.275837.121
复制
发表时间:
2022-03
期刊:
影响因子:
7
通讯作者:
Zhang Y
Zhang Y
中科院分区:
生物学1区
文献类型:
--
作者:
Wang X;Wang W;Wang Y;Chen J;Liu G;Zhang Y

文献摘要

参考文献

相似文献

关键转录因子(TF)在早期胚胎发育过程中合子基因组激活(ZGA)中起着关键作用,但由于细胞数量的限制或缺乏高质量的抗体,在ZGA过程中只有少数转录因子在全基因组范围内占据优势。在这里,我们提出了FitCUT&RUN,一种改进的CUT&RUN方法,其中免疫球蛋白G的Fc片段用于标记,以无抗体的方式分析TF占用率,并使用少至5000个K562细胞证明其可靠性和鲁棒性。我们将FitCUT&RUN应用于正在进行胚胎发生的斑马鱼,以生成斑马鱼ZGA的三种已知激活剂的可靠占用曲线:Nanog,Pou5f3和Sox19b。通过分析斑马鱼ZGA期间Nanog的时间序列占用率,我们观察到Nanog占用率逐渐增加的明显趋势,并发现在ZGA的主要阶段之前Nanog占用率对于一些早期转录基因的激活是重要的。
Key transcription factors (TFs) play critical roles in zygotic genome activation (ZGA) during early embryogenesis, whereas genome-wide occupancies of only a few factors have been profiled during ZGA due to the limitation of cell numbers or the lack of high-quality antibodies. Here, we present FitCUT&RUN, a modified CUT&RUN method, in which an Fc fragment of immunoglobulin G is used for tagging, to profile TF occupancy in an antibody-free manner and demonstrate its reliability and robustness using as few as 5000 K562 cells. We applied FitCUT&RUN to zebrafish undergoing embryogenesis to generate reliable occupancy profiles of three known activators of zebrafish ZGA: Nanog, Pou5f3, and Sox19b. By profiling the time-series occupancy of Nanog during zebrafish ZGA, we observed a clear trend toward a gradual increase in Nanog occupancy and found that Nanog occupancy prior to the major phase of ZGA is important for the activation of some early transcribed genes.
DOI: 10.1093/bioinformatics/btr064
发表时间: 2011-04-01
期刊: Bioinformatics (Oxford, England)
影响因子: --
作者:
Grant CE;Bailey TL;Noble WS
通讯作者: Noble WS
DOI: 10.1126/science.1242527
发表时间: 2013-08-30
期刊: SCIENCE
影响因子: 56.9
作者:
Leichsenring, Manuel;Maes, Julia;Onichtchouk, Daria
通讯作者: Onichtchouk, Daria
DOI: 10.1038/nmeth.1923
发表时间: 2012-03-04
期刊: NATURE METHODS
影响因子: 48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者: Salzberg, Steven L.
DOI: 10.1101/gr.209486.116
发表时间: 2017-01-01
期刊: GENOME RESEARCH
影响因子: 7
作者:
Koenecke, Nina;Johnston, Jeff;Zeitlinger, Julia
通讯作者: Zeitlinger, Julia
DOI: 10.3791/55836
发表时间: 2017-06-01
影响因子: 1.2
作者:
Grunberg, Sebastian;Zentner, Gabriel E.
通讯作者: Zentner, Gabriel E.