5ZK1

Crystal Structure of the CRTC2(SeMet)-CREB-CRE complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Structural Insights into the CRTC2-CREB Complex Assembly on CRE.

Song, Y.Zhai, L.Valencia Swain, J.Chen, Y.Wang, P.Chen, L.Liu, Y.Xiang, S.

(2018) J Mol Biol 430: 1926-1939

  • DOI: 10.1016/j.jmb.2018.04.038
  • Primary Citation of Related Structures:  
    5ZK1, 5ZKO

  • PubMed Abstract: 
  • The cAMP response element (CRE) binding protein (CREB) is central in the transcription regulation by cAMP, and the CREB-regulated transcriptional coactivators (CRTCs) play critical roles in CREB-mediated transcription activation. Upon stimulation, CRTCs translocate into the nucleus and complex with CREB on CRE promoters to activate target gene transcription ...

    The cAMP response element (CRE) binding protein (CREB) is central in the transcription regulation by cAMP, and the CREB-regulated transcriptional coactivators (CRTCs) play critical roles in CREB-mediated transcription activation. Upon stimulation, CRTCs translocate into the nucleus and complex with CREB on CRE promoters to activate target gene transcription. Their physiological importance is underscored by their function in energy balance, long-term memory, longevity and other processes. The CREB binding domain on CRTCs has been mapped, which interacts with the CREB basic leucine zipper domain that also mediates interaction with CRE-containing DNA. We report here crystal structures of a complex containing the CRTC2 CREB binding domain, the CREB basic leucine zipper domain and a CRE-containing DNA. The structures revealed that CRTC and CREB form a 2:2 complex on CRE-containing DNA, and CRTC interacts with both CREB and DNA through highly conserved residues. Structure-guided functional studies revealed that both interactions are crucial for the complex assembly and CREB stabilization on DNA. Interestingly, we found that the CRTC-DNA interaction confers selectivity toward the intrinsic DNA shape, which may play a role in selective transcription activation of the CRE genes.


    Organizational Affiliation

    Key Laboratory of Nutrition and Metabolism, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, P.R. China. Electronic address: sxiang@sibs.ac.cn.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Cyclic AMP-responsive element-binding protein 1B [auth A]59Homo sapiensMutation(s): 2 
Gene Names: CREB1
UniProt & NIH Common Fund Data Resources
Find proteins for P16220 (Homo sapiens)
Explore P16220 
Go to UniProtKB:  P16220
PHAROS:  P16220
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
CREB-regulated transcription coactivator 2C42Mus musculusMutation(s): 0 
Gene Names: Crtc2Torc2
UniProt
Find proteins for Q3U182 (Mus musculus)
Explore Q3U182 
Go to UniProtKB:  Q3U182
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*CP*TP*TP*GP*GP*CP*TP*GP*AP*CP*GP*TP*CP*AP*GP*CP*CP*AP*AP*G)-3')A [auth B]20synthetic construct
    Protein Feature View
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    • Reference Sequence
    Small Molecules
    Ligands 1 Unique
    IDChainsName / Formula / InChI Key2D Diagram3D Interactions
    ZN
    Query on ZN

    Download Ideal Coordinates CCD File 
    D [auth A]ZINC ION
    Zn
    PTFCDOFLOPIGGS-UHFFFAOYSA-N
     Ligand Interaction
    Modified Residues  1 Unique
    IDChainsTypeFormula2D DiagramParent
    MSE
    Query on MSE
    CL-PEPTIDE LINKINGC5 H11 N O2 SeMET
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 3.05 Å
    • R-Value Free: 0.269 
    • R-Value Work: 0.228 
    • R-Value Observed: 0.232 
    • Space Group: C 2 2 21
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 50.271α = 90
    b = 242.878β = 90
    c = 40.548γ = 90
    Software Package:
    Software NamePurpose
    PHENIXrefinement
    HKL-2000data reduction
    SCALEPACKdata scaling
    PHASERphasing
    PDB_EXTRACTdata extraction

    Structure Validation

    View Full Validation Report



    Entry History & Funding Information

    Deposition Data


    Funding OrganizationLocationGrant Number
    National Natural Science Foundation of ChinaChina31570743

    Revision History  (Full details and data files)

    • Version 1.0: 2018-06-20
      Type: Initial release