6GD3

Structure of HuR RRM3 in complex with RNA (UAUUUA)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.166 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

HuR biological function involves RRM3-mediated dimerization and RNA binding by all three RRMs.

Pabis, M., Popowicz, G.M., Stehle, R., Fernandez-Ramos, D., Asami, S., Warner, L., Garcia-Maurino, S.M., Schlundt, A., Martinez-Chantar, M.L., Diaz-Moreno, I., Sattler, M.

(2019) Nucleic Acids Res 47: 1011-1029

  • DOI: 10.1093/nar/gky1138
  • Primary Citation of Related Structures:  
    6GD2, 6GD1, 6GD3, 6G2K

  • PubMed Abstract: 

    • HuR/ELAVL1 is an RNA-binding protein involved in differentiation and stress response that acts primarily by stabilizing messenger RNA (mRNA) targets. HuR comprises three RNA recognition motifs (RRMs) where the structure and RNA binding of RRM3 and of ful ...

    HuR/ELAVL1 is an RNA-binding protein involved in differentiation and stress response that acts primarily by stabilizing messenger RNA (mRNA) targets. HuR comprises three RNA recognition motifs (RRMs) where the structure and RNA binding of RRM3 and of full-length HuR remain poorly understood. Here, we report crystal structures of RRM3 free and bound to cognate RNAs. Our structural, NMR and biochemical data show that RRM3 mediates canonical RNA interactions and reveal molecular details of a dimerization interface localized on the α-helical face of RRM3. NMR and SAXS analyses indicate that the three RRMs in full-length HuR are flexibly connected in the absence of RNA, while they adopt a more compact arrangement when bound to RNA. Based on these data and crystal structures of tandem RRM1,2-RNA and our RRM3-RNA complexes, we present a structural model of RNA recognition involving all three RRM domains of full-length HuR. Mutational analysis demonstrates that RRM3 dimerization and RNA binding is required for functional activity of full-length HuR in vitro and to regulate target mRNAs levels in human cells, thus providing a fine-tuning for HuR activity in vivo.

    Organizational Affiliation: 

    Center for Integrated Protein Science Munich at Chair Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany.



Macromolecules

Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ELAV-like protein 1 A, B, C87Homo sapiensMutation(s): 0 
Gene Names: ELAVL1, HUR
Find proteins for Q15717 (Homo sapiens)
Explore Q15717 
Go to UniProtKB:  Q15717
NIH Common Fund Data Resources
PHAROS:  Q15717
GTEx:  ENSG00000066044
Protein Feature View
Expand
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    RNA (5'-R(P*UP*AP*UP*UP*UP*A)-3')P6synthetic construct
    Small Molecules
    Ligands 1 Unique
    IDChainsName / Formula / InChI Key2D Diagram3D Interactions
    NA
    Query on NA
    Download Ideal Coordinates CCD File 
    A
    		SODIUM ION
    Na
    FKNQFGJONOIPTF-UHFFFAOYSA-N    		 Ligand Interaction
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 1.35 Å
    • R-Value Free: 0.189 
    • R-Value Work: 0.165 
    • R-Value Observed: 0.166 
    • Space Group: P 1 21 1
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 33.74α = 90
    b = 79.93β = 90.63
    c = 54.87γ = 90
    Software Package:
    Software NamePurpose
    REFMACrefinement
    XDSdata reduction
    XSCALEdata scaling
    PHASERphasing
    MOLREPphasing

    Structure Validation

    View Full Validation Report


    View more in-depth experimental data

    Entry History & Funding Information

    Deposition Data

    • Deposited Date: 2018-04-21 
    • Released Date: 2018-10-31 
      • Deposition Author(s): Pabis, M., Sattler, M.
    Funding OrganizationLocationGrant Number
    German Research FoundationGermanySFB1035

    Revision History 

    • Version 1.0: 2018-10-31
      Type: Initial release
    • Version 1.1: 2019-05-15
      Changes: Data collection, Database references