1I2M

RAN-RCC1-SO4 COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.192 

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This is version 1.5 of the entry. See complete history


Literature

Structural basis for guanine nucleotide exchange on Ran by the regulator of chromosome condensation (RCC1).

Renault, L.Kuhlmann, J.Henkel, A.Wittinghofer, A.

(2001) Cell 105: 245-255

  • DOI: https://doi.org/10.1016/s0092-8674(01)00315-4
  • Primary Citation of Related Structures:  
    1I2M

  • PubMed Abstract: 

    RCC1 (regulator of chromosome condensation), a beta propeller chromatin-bound protein, is the guanine nucleotide exchange factor (GEF) for the nuclear GTP binding protein Ran. We report here the 1.8 A crystal structure of a Ran*RCC1 complex in the absence of nucleotide, an intermediate in the multistep GEF reaction. In contrast to previous structures, the phosphate binding region of the nucleotide binding site is perturbed only marginally, possibly due to the presence of a polyvalent anion in the P loop. Biochemical experiments show that a sulfate ion stabilizes the Ran*RCC1 complex and inhibits dissociation by guanine nucleotides. Based on the available structural and biochemical evidence, we present a unified scenario for the GEF mechanism where interaction of the P loop lysine with an acidic residue is a crucial element for the overall reaction.


  • Organizational Affiliation

    Max-Planck-Institut für Molekulare Physiologie, Postfach 50 02 47, 44202, Dortmund, Germany.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GTP-BINDING NUCLEAR PROTEIN RAN
A, C
216Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P62826 (Homo sapiens)
Explore P62826 
Go to UniProtKB:  P62826
PHAROS:  P62826
GTEx:  ENSG00000132341 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62826
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
REGULATOR OF CHROMOSOME CONDENSATION 1
B, D
402Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P18754 (Homo sapiens)
Explore P18754 
Go to UniProtKB:  P18754
PHAROS:  P18754
GTEx:  ENSG00000180198 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP18754
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.192 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.334α = 100.92
b = 71.447β = 92.05
c = 77.729γ = 104.47
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XDSdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-05-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 1.4: 2018-02-14
    Changes: Experimental preparation
  • Version 1.5: 2023-08-09
    Changes: Data collection, Database references, Derived calculations, Refinement description