TSA-Seq 2.0 reveals both conserved and variable chromosomal distances to nuclear speckles
TSA-Seq 2.0 reveals both conserved and variable chromosomal distances to nuclear speckles
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TSA-Seq 2.0 揭示了核斑点的保守和可变染色体距离
DOI:
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发表时间:
2019
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影响因子:
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通讯作者:
A. Belmont
中科院分区:
文献类型:
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作者:
Liguo Zhang;Yang Zhang;Yu Chen;Omid Gholamalamdari;Jian Ma;A. Belmont
TSA-Seq measures chromosomal distances from specific nuclear compartments genome-wide but requires ≥100 million cells. We report 10-20-fold increased sensitivity using TSA-Seq 2.0 which deliberately saturates protein-labeling but preserves distance mapping by the still unsaturated DNA-labeling. Mapping nuclear speckle distances in four cell lines reveals highly transcriptionally active, conserved speckle-associated chromosome domains but relative shifts of a small fraction of the genome that highly correlates with changes in gene expression.
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