6QI9

Truncated human R2TP complex, structure 4 (ADP-empty)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.63 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural mechanism for regulation of the AAA-ATPases RUVBL1-RUVBL2 in the R2TP co-chaperone revealed by cryo-EM.

Munoz-Hernandez, H.Pal, M.Rodriguez, C.F.Fernandez-Leiro, R.Prodromou, C.Pearl, L.H.Llorca, O.

(2019) Sci Adv 5: eaaw1616-eaaw1616

  • DOI: 10.1126/sciadv.aaw1616
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The human R2TP complex (RUVBL1-RUVBL2-RPAP3-PIH1D1) is an HSP90 co-chaperone required for the maturation of several essential multiprotein complexes, including RNA polymerase II, small nucleolar ribonucleoproteins, and PIKK complexes such as mTORC1 a ...

    The human R2TP complex (RUVBL1-RUVBL2-RPAP3-PIH1D1) is an HSP90 co-chaperone required for the maturation of several essential multiprotein complexes, including RNA polymerase II, small nucleolar ribonucleoproteins, and PIKK complexes such as mTORC1 and ATR-ATRIP. RUVBL1-RUVBL2 AAA-ATPases are also primary components of other essential complexes such as INO80 and Tip60 remodelers. Despite recent efforts, the molecular mechanisms regulating RUVBL1-RUVBL2 in these complexes remain elusive. Here, we report cryo-EM structures of R2TP and show how access to the nucleotide-binding site of RUVBL2 is coupled to binding of the client recruitment component of R2TP (PIH1D1) to its DII domain. This interaction induces conformational rearrangements that lead to the destabilization of an N-terminal segment of RUVBL2 that acts as a gatekeeper to nucleotide exchange. This mechanism couples protein-induced motions of the DII domains with accessibility of the nucleotide-binding site in RUVBL1-RUVBL2, and it is likely a general mechanism shared with other RUVBL1-RUVBL2-containing complexes.


    Organizational Affiliation

    Structural Biology Programme, Spanish National Cancer Research Centre (CNIO), Calle de Melchor Fernández Almagro 3, 28029 Madrid, Spain.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RuvB-like 1A, B, C456Homo sapiensMutation(s): 0 
Gene Names: RUVBL1INO80HNMP238TIP49TIP49A
EC: 3.6.4.12
Find proteins for Q9Y265 (Homo sapiens)
Explore Q9Y265 
Go to UniProtKB:  Q9Y265
NIH Common Fund Data Resources
PHAROS  Q9Y265
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
RuvB-like 2D, E, F463Homo sapiensMutation(s): 0 
Gene Names: RUVBL2INO80JTIP48TIP49BCGI-46
EC: 3.6.4.12
Find proteins for Q9Y230 (Homo sapiens)
Explore Q9Y230 
Go to UniProtKB:  Q9Y230
NIH Common Fund Data Resources
PHAROS  Q9Y230
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download CCD File 
A, B, C, E, F
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.63 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Spanish Ministry of Science, Innovation, and UniversitiesSpainSAF2014-52301-R
Spanish Ministry of Science, Innovation, and UniversitiesSpainSAF2017-82632-P
Spanish Ministry of Economy and CompetitivenessSpainBES-2015-071348

Revision History 

  • Version 1.0: 2019-05-15
    Type: Initial release
  • Version 1.1: 2019-12-18
    Changes: Other