Revealing long noncoding RNA architecture and functions using domain-specific chromatin isolation by RNA purification.
Revealing long noncoding RNA architecture and functions using domain-specific chromatin isolation by RNA purification.
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DOI:
10.1038/nbt.2943
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发表时间:
2014-09
影响因子:
46.9
通讯作者:
Chang, Howard Y.
中科院分区:
文献类型:
--
作者:
Quinn, Jeffrey J.;Ilik, Ibrahim A.;Qu, Kun;Georgiev, Plamen;Chu, Ci;Alchtar, Asifa;Chang, Howard Y.
Little is known about the functional domain architecture of long RNA molecules, mainly because of a relative paucity of suitable methods to analyze RNA function at a domain level. Here we describe domain-specific chromatin isolation by RNA purification (dChIRP), a scalable technique to dissect pairwise RNA-RNA, RNA-protein, and RNA-chromatin interactions in living cells. dChIRP of roX1, a lncRNA essential for Drosophila X-chromosome dosage compensation, reveals a “three-fingered hand” ribonucleoprotein topology. Each RNA finger binds chromatin and the Male-Specific Lethal (MSL) protein complex, and can individually rescue male lethality in roX-null flies, thus defining a minimal RNA domain for chromosome-wide dosage compensation. dChIRP improves RNA genomic localization signal by >20-fold relative to previous techniques, and these binding sites are correlated with chromosome conformation data, indicating that most roX-bound loci cluster in a nuclear territory. These results suggest dChIRP can reveal lncRNA architecture and function with new precision and sensitivity.
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影响因子:
64.5
作者:
Alekseyenko AA;Peng S;Larschan E;Gorchakov AA;Lee OK;Kharchenko P;McGrath SD;Wang CI;Mardis ER;Park PJ;Kuroda MI
通讯作者:
Kuroda MI
影响因子:
64.8
作者:
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影响因子:
64.5
作者:
Hafner M;Landthaler M;Burger L;Khorshid M;Hausser J;Berninger P;Rothballer A;Ascano M Jr;Jungkamp AC;Munschauer M;Ulrich A;Wardle GS;Dewell S;Zavolan M;Tuschl T
通讯作者:
Tuschl T
影响因子:
4.8
作者:
Ule, J;Jensen, K;Darnell, RB
通讯作者:
Darnell, RB
影响因子:
10.5
作者:
Soruco, Marcela M. L.;Chery, Jessica;Larschan, Erica
通讯作者:
Larschan, Erica