Landscape of semi-extractable RNAs across five human cell lines.

Publisher: Oxford University Press Country of Publication: England NLM ID: 0411011 Publication Model: Print Cited Medium: Internet ISSN: 1362-4962 (Electronic) Linking ISSN: 03051048 NLM ISO Abbreviation: Nucleic Acids Res Subsets: MEDLINE

Publication: 1992- : Oxford : Oxford University Press
Original Publication: London, Information Retrieval ltd.

RNA*/isolation & purification ; RNA, Long Noncoding*/genetics ; RNA, Long Noncoding*/metabolism; Humans ; Cell Line ; Cell Nucleus/metabolism ; Chromatin/metabolism ; DNA-Binding Proteins/genetics

Phase-separated membraneless organelles often contain RNAs that exhibit unusual semi-extractability using the conventional RNA extraction method, and can be efficiently retrieved by needle shearing or heating during RNA extraction. Semi-extractable RNAs are promising resources for understanding RNA-centric phase separation. However, limited assessments have been performed to systematically identify and characterize semi-extractable RNAs. In this study, 1074 semi-extractable RNAs, including ASAP1, DANT2, EXT1, FTX, IGF1R, LIMS1, NEAT1, PHF21A, PVT1, SCMH1, STRG.3024.1, TBL1X, TCF7L2, TVP23C-CDRT4, UBE2E2, ZCCHC7, ZFAND3 and ZSWIM6, which exhibited consistent semi-extractability were identified across five human cell lines. By integrating publicly available datasets, we found that semi-extractable RNAs tend to be distributed in the nuclear compartments but are dissociated from the chromatin. Long and repeat-containing semi-extractable RNAs act as hubs to provide global RNA-RNA interactions. Semi-extractable RNAs were divided into four groups based on their k-mer content. The NEAT1 group preferred to interact with paraspeckle proteins, such as FUS and NONO, implying that RNAs in this group are potential candidates of architectural RNAs that constitute nuclear bodies.
(© The Author(s) 2023. Published by Oxford University Press on behalf of Nucleic Acids Research.)

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0 (Chromatin)
0 (DNA-Binding Proteins)
63231-63-0 (RNA)
0 (RNA, Long Noncoding)

Date Created: 20230718 Date Completed: 20230828 Latest Revision: 20231004

20240829

PMC10450185

10.1093/nar/gkad567

37463833