5ZKO

Crystal structure of the CRTC2-CREB-CRE complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.242 

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:  

  • 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, CR ...

    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.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cyclic AMP-responsive element-binding protein 1
A, C
59Homo sapiensMutation(s): 0 
Gene Names: CREB1
Find proteins for P16220 (Homo sapiens)
Go to Gene View: CREB1
Go to UniProtKB:  P16220
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
CREB-regulated transcription coactivator 2
G, H
80Mus musculusMutation(s): 0 
Gene Names: Crtc2 (Torc2)
Find proteins for Q3U182 (Mus musculus)
Go to UniProtKB:  Q3U182
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*TP*TP*GP*GP*CP*TP*GP*AP*CP*GP*TP*CP*AP*GP*CP*CP*AP*AP*G)-3')B,D20synthetic construct
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.242 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 50.300α = 90.00
b = 41.320β = 90.61
c = 122.580γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
PDB_EXTRACTdata extraction
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31570743

Revision History 

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