1DFJ

RIBONUCLEASE INHIBITOR COMPLEXED WITH RIBONUCLEASE A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A structural basis of the interactions between leucine-rich repeats and protein ligands.

Kobe, B.Deisenhofer, J.

(1995) Nature 374: 183-186

  • DOI: 10.1038/374183a0

  • PubMed Abstract: 
  • The leucine-rich repeat is a recently characterized structural motif used in molecular recognition processes as diverse as signal transduction, cell adhesion, cell development, DNA repair and RNA processing. We present here the crystal structure at 2 ...

    The leucine-rich repeat is a recently characterized structural motif used in molecular recognition processes as diverse as signal transduction, cell adhesion, cell development, DNA repair and RNA processing. We present here the crystal structure at 2.5 A resolution of the complex between ribonuclease A and ribonuclease inhibitor, a protein built entirely of leucine-rich repeats. The unusual non-globular structure of ribonuclease inhibitor, its solvent-exposed parallel beta-sheet and the conformational flexibility of the structure are used in the interaction; they appear to be the principal reasons for the effectiveness of leucine-rich repeats as protein-binding motifs. The structure can serve as a model for the interactions of other proteins containing leucine-rich repeats with their ligands.


    Related Citations: 
    • Complex between Bovine Ribonuclease A and Porcine Ribonuclease Inhibitor Crystallizes in a Similar Unit Cell as Free Ribonuclease Inhibitor
      Kobe, B.,Ma, Z.,Deisenhofer, J.
      (1994) J.Mol.Biol. 241: 288
    • Mechanism of Ribonuclease Inhibition by Ribonuclease Inhibitor Protein Based on the Crystal Structure of its Complex with Ribonuclease A
      Kobe, B.,Deisenhofer, J.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas 75235-9050.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RIBONUCLEASE A
E
124Bos taurusGene Names: RNASE1 (RNS1)
EC: 3.1.27.5
Find proteins for P61823 (Bos taurus)
Go to Gene View: RNASE1
Go to UniProtKB:  P61823
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
RIBONUCLEASE INHIBITOR
I
457Sus scrofaGene Names: RNH1 (RI, RNH)
Find proteins for P10775 (Sus scrofa)
Go to Gene View: RNH1
Go to UniProtKB:  P10775
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
E
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
I
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.194 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 133.300α = 90.00
b = 133.300β = 90.00
c = 86.700γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-01-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance