5FR2

Farnesylated RhoA-GDP in complex with RhoGDI-alpha, lysine acetylated at K178


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.35 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.5 of the entry. See complete history


Literature

Structural and Mechanistic Insights Into the Regulation of the Fundamental Rho-Regulator Rhogdi Alpha by Lysine Acetylation.

Kuhlmann, N.Wroblowski, S.Knyphausen, P.De Boor, S.Brenig, J.Zienert, A.Y.Meyer-Teschendorf, K.Praefcke, G.J.K.Nolte, H.Kruger, M.Schacherl, M.Baumann, U.James, L.C.Chin, J.W.Lammers, M.

(2016) J Biol Chem 291: 5484

  • DOI: https://doi.org/10.1074/jbc.M115.707091
  • Primary Citation of Related Structures:  
    5FR2

  • PubMed Abstract: 

    Rho proteins are small GTP/GDP-binding proteins primarily involved in cytoskeleton regulation. Their GTP/GDP cycle is often tightly connected to a membrane/cytosol cycle regulated by the Rho guanine nucleotide dissociation inhibitor α (RhoGDIα). RhoGDIα has been regarded as a housekeeping regulator essential to control homeostasis of Rho proteins. Recent proteomic screens showed that RhoGDIα is extensively lysine-acetylated. Here, we present the first comprehensive structural and mechanistic study to show how RhoGDIα function is regulated by lysine acetylation. We discover that lysine acetylation impairs Rho protein binding and increases guanine nucleotide exchange factor-catalyzed nucleotide exchange on RhoA, these two functions being prerequisites to constitute a bona fide GDI displacement factor. RhoGDIα acetylation interferes with Rho signaling, resulting in alteration of cellular filamentous actin. Finally, we discover that RhoGDIα is endogenously acetylated in mammalian cells, and we identify CBP, p300, and pCAF as RhoGDIα-acetyltransferases and Sirt2 and HDAC6 as specific deacetylases, showing the biological significance of this post-translational modification.


  • Organizational Affiliation

    From the Institute for Genetics and Cologne Excellence Cluster on Cellular Stress Responses in Aging-associated Diseases (CECAD), Joseph-Stelzmann-Strasse 26, University of Cologne, 50931 Cologne, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
TRANSFORMING PROTEIN RHOA195Homo sapiensMutation(s): 0 
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P61586 (Homo sapiens)
Explore P61586 
Go to UniProtKB:  P61586
PHAROS:  P61586
GTEx:  ENSG00000067560 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61586
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
RHO GDP-DISSOCIATION INHIBITOR 1213Bos taurusMutation(s): 0 
UniProt
Find proteins for P19803 (Bos taurus)
Go to UniProtKB:  P19803
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
ALY
Query on ALY
B
L-PEPTIDE LINKINGC8 H16 N2 O3LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.35 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 
  • Space Group: P 62
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 176.979α = 90
b = 176.979β = 90
c = 63.896γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2016-01-13
    Type: Initial release
  • Version 1.1: 2016-01-27
    Changes: Database references
  • Version 1.2: 2016-03-23
    Changes: Database references
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary
  • Version 1.4: 2024-01-10
    Changes: Data collection, Database references, Refinement description, Structure summary
  • Version 1.5: 2024-10-23
    Changes: Structure summary