Viral crosslinking and solid-phase purification enables discovery of ribonucleoprotein complexes on incoming RNA virus genomes.
Viral crosslinking and solid-phase purification enables discovery of ribonucleoprotein complexes on incoming RNA virus genomes.
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病毒交联和固相纯化使人们能够在传入的RNA病毒基因组上发现核糖核蛋白复合体。
DOI:
10.1038/s41596-020-00429-6
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发表时间:
2021-01
期刊:
影响因子:
14.8
通讯作者:
Ascano M
中科院分区:
文献类型:
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作者:
Kim B;Arcos S;Rothamel K;Ascano M
The initial interactions between incoming, pre-replicated virion RNA and host protein factors are important in infection and immunity. Yet currently there are no methods to study these crucial events. We established VIR-CLASP (VIRal Cross-Linking And Solid-phase Purification) to identify the primary viral RNA-host protein interactions. First, host cells are infected with 4-thiouridine (4SU)-labeled RNA viruses and irradiated with 365 nm light to crosslink 4SU-labeled viral genomes and interacting proteins from host or virus. The cross-linked RNA binding proteins (RBPs) are purified by solid-phase reversible immobilization (SPRI) beads with protein denaturing buffers, and then identified by proteomics. With VIR-CLASP, only the incoming virion RNAs are labeled with 4SU, so cross-linking events specifically occur between proteins and pre-replicated virion RNA. Since solid-phase purification under protein-denaturing conditions, rather than sequence-specific nucleic acid purification, is used to pull-down total RNA and cross-linked RBPs, this method facilitates investigation of potentially all RNA viruses, regardless of RNA sequence. Preparation of 4SU-labeled virus takes ~7 days and VIR-CLASP takes 1 day.
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DOI:
10.1109/tvcg.2014.2346248
发表时间:
2014-12
影响因子:
5.2
作者:
Lex A;Gehlenborg N;Strobelt H;Vuillemot R;Pfister H
通讯作者:
Pfister H
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:
4.4
作者:
Asencio C;Chatterjee A;Hentze MW
通讯作者:
Hentze MW
影响因子:
64.8
作者:
通讯作者:
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影响因子:
16.8
作者:
通讯作者:
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