1. Multi-omics analysis using antibody-based in situ biotinylation technique suggests the mechanism of Cajal body formation
- Author
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Keisuke Noguchi, Hidefumi Suzuki, Ryota Abe, Keiko Horiuchi, Rena Onoguchi-Mizutani, Nobuyoshi Akimitsu, Shintaro Ogawa, Tomohiko Akiyama, Yoko Ike, Yoko Ino, Yayoi Kimura, Akihide Ryo, Hiroshi Doi, Fumiaki Tanaka, Yutaka Suzuki, Atsushi Toyoda, Yuki Yamaguchi, and Hidehisa Takahashi
- Subjects
CP: Molecular biology ,Biology (General) ,QH301-705.5 - Abstract
Summary: Membrane-less subcellular compartments play important roles in various cellular functions. Although techniques exist to identify components of cellular bodies, a comprehensive method for analyzing both static and dynamic states has not been established. Here, we apply an antibody-based in situ biotinylation proximity-labeling technique to identify components of static and dynamic nuclear bodies. Using this approach, we comprehensively identify DNA, RNA, and protein components of Cajal bodies (CBs) and then clarify their interactome. By inhibiting transcription, we capture dynamic changes in CBs. Our analysis reveals that nascent small nuclear RNAs (snRNAs) transcribed in CBs contribute to CB formation by assembling RNA-binding proteins, including frontotemporal dementia-related proteins, RNA-binding motif proteins, and heterogeneous nuclear ribonucleoproteins.
- Published
- 2024
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