7LUV

Cryo-EM structure of the yeast THO-Sub2 complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


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Literature

Cryo-EM structure of the yeast TREX complex and coordination with the SR-like protein Gbp2.

Xie, Y.Clarke, B.P.Kim, Y.J.Ivey, A.L.Hill, P.S.Shi, Y.Ren, Y.

(2021) Elife 10

  • DOI: 10.7554/eLife.65699
  • Primary Citation of Related Structures:  
    7LUV

  • PubMed Abstract: 
  • The evolutionarily conserved TRanscript-EXport (TREX) complex plays central roles during mRNP (messenger ribonucleoprotein) maturation and export from the nucleus to the cytoplasm. In yeast, TREX is composed of the THO sub-complex (Tho2, Hpr1, Tex1, Mft1, and Thp2), the DEAD box ATPase Sub2, and Yra1 ...

    The evolutionarily conserved TRanscript-EXport (TREX) complex plays central roles during mRNP (messenger ribonucleoprotein) maturation and export from the nucleus to the cytoplasm. In yeast, TREX is composed of the THO sub-complex (Tho2, Hpr1, Tex1, Mft1, and Thp2), the DEAD box ATPase Sub2, and Yra1. Here we present a 3.7 Å cryo-EM structure of the yeast THO•Sub2 complex. The structure reveals the intimate assembly of THO revolving around its largest subunit Tho2. THO stabilizes a semi-open conformation of the Sub2 ATPase via interactions with Tho2. We show that THO interacts with the serine-arginine (SR)-like protein Gbp2 through both the RS domain and RRM domains of Gbp2. Cross-linking mass spectrometry analysis supports the extensive interactions between THO and Gbp2, further revealing that RRM domains of Gbp2 are in close proximity to the C-terminal domain of Tho2. We propose that THO serves as a landing pad to configure Gbp2 to facilitate its loading onto mRNP.


    Organizational Affiliation

    Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, United States.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
THO complex subunit HPR1A603Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: HPR1YDR138WYD9302.14
UniProt
Find proteins for P17629 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Go to UniProtKB:  P17629
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
THO complex subunit THP2B261Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: THP2YHR167W
UniProt
Find proteins for O13539 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
THO complex subunit 2C1262Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: THO2LDB5RLR1ZRG13YNL139CN1209N1835
UniProt
Find proteins for P53552 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
THO complex subunit MFT1D256Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: MFT1YML062C
UniProt
Find proteins for P33441 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Tex1E385Saccharomyces bayanusMutation(s): 0 
Gene Names: TEX1
UniProt
Find proteins for Q1ESZ7 (Saccharomyces bayanus)
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Find proteins for A0A0L8RC19 (Saccharomyces eubayanus)
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-dependent RNA helicase SUB2F [auth M]446Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SUB2YDL084W
EC: 3.6.4.13
UniProt
Find proteins for Q07478 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data

  • Deposited Date: 2021-02-23 
  • Released Date: 2021-04-14 
  • Deposition Author(s): Xie, Y., Ren, Y.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM133743

Revision History  (Full details and data files)

  • Version 1.0: 2021-04-14
    Type: Initial release