4JAS

Structural basis of a rationally rewired protein-protein interface (HK853mutant A268V, A271G, T275M, V294T and D297E and RR468mutant V13P, L14I, I17M and N21V)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.212 

Starting Models: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Structural basis of a rationally rewired protein-protein interface critical to bacterial signaling

Podgornaia, A.I.Casino, P.Marina, A.Laub, M.T.

(2013) Structure 21: 1636-1647

  • DOI: https://doi.org/10.1016/j.str.2013.07.005
  • Primary Citation of Related Structures:  
    4JA2, 4JAS, 4JAU, 4JAV

  • PubMed Abstract: 

    Two-component signal transduction systems typically involve a sensor histidine kinase that specifically phosphorylates a single, cognate response regulator. This protein-protein interaction relies on molecular recognition via a small set of residues in each protein. To better understand how these residues determine the specificity of kinase-substrate interactions, we rationally rewired the interaction interface of a Thermotoga maritima two-component system, HK853-RR468, to match that found in a different two-component system, Escherichia coli PhoR-PhoB. The rewired proteins interacted robustly with each other, but no longer interacted with the parent proteins. Analysis of the crystal structures of the wild-type and mutant protein complexes and a systematic mutagenesis study reveal how individual mutations contribute to the rewiring of interaction specificity. Our approach and conclusions have implications for studies of other protein-protein interactions and protein evolution and for the design of novel protein interfaces.


  • Organizational Affiliation

    Computational and Systems Biology Initiative, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histidine kinase258Thermotoga maritima MSB8Mutation(s): 5 
Gene Names: TM_0853
EC: 2.7.13.3
UniProt
Find proteins for Q9WZV7 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8))
Explore Q9WZV7 
Go to UniProtKB:  Q9WZV7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9WZV7
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Response regulator122Thermotoga maritima MSB8Mutation(s): 4 
Gene Names: TM_0468
UniProt
Find proteins for Q9WYT9 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8))
Explore Q9WYT9 
Go to UniProtKB:  Q9WYT9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9WYT9
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.212 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.71α = 90
b = 85.309β = 90
c = 185.595γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
PHASERphasing
REFMACrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-09-04
    Type: Initial release
  • Version 1.1: 2013-09-25
    Changes: Database references, Structure summary
  • Version 1.2: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.3: 2024-10-16
    Changes: Structure summary