CryoEM structure of Saccharomyces cerevisiae U1 snRNP offers insight into alternative splicing.
CryoEM structure of Saccharomyces cerevisiae U1 snRNP offers insight into alternative splicing.
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DOI:
10.1038/s41467-017-01241-9
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发表时间:
2017-10-19
影响因子:
16.6
通讯作者:
Zhao R
中科院分区:
文献类型:
--
作者:
Li X;Liu S;Jiang J;Zhang L;Espinosa S;Hill RC;Hansen KC;Zhou ZH;Zhao R
U1 snRNP plays a critical role in 5ʹ-splice site recognition and is a frequent target of alternative splicing factors. These factors transiently associate with human U1 snRNP and are not amenable for structural studies, while their Saccharomyces cerevisiae (yeast) homologs are stable components of U1 snRNP. Here, we report the cryoEM structure of yeast U1 snRNP at 3.6 Å resolution with atomic models for ten core proteins, nearly all essential domains of its RNA, and five stably associated auxiliary proteins. The foot-shaped yeast U1 snRNP contains a core in the “ball-and-toes” region architecturally similar to the human U1 snRNP. All auxiliary proteins are in the “arch-and-heel” region and connected to the core through the Prp42/Prp39 paralogs. Our demonstration that homodimeric human PrpF39 directly interacts with U1C-CTD, mirroring yeast Prp42/Prp39, supports yeast U1 snRNP as a model for understanding how transiently associated auxiliary proteins recruit human U1 snRNP in alternative splicing. U1 snRNP is critical for 5′ splicing site recognition in pre-mRNA splicing. Here the authors describe the cryo-EM structure of the yeast U1 snRNP and suggest that PrpF39 is an alternative splicing factor essential for the successful recruitment of U1 snRNP by other alternative splicing factors.
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影响因子:
48
作者:
Barad BA;Echols N;Wang RY;Cheng Y;DiMaio F;Adams PD;Fraser JS
通讯作者:
Fraser JS
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
DOI:
10.1261/rna.047258.114
发表时间:
2015-03
期刊:
RNA (New York, N.Y.)
影响因子:
--
作者:
Becerra S;Montes M;Hernández-Munain C;Suñé C
通讯作者:
Suñé C
影响因子:
2.2
作者:
Chen, Shaoxia;McMullan, Greg;Faruqi, Abdul R.;Murshudov, Garib N.;Short, Judith M.;Scheres, Sjors H. W.;Henderson, Richard
通讯作者:
Henderson, Richard
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC