4JAV

Structural basis of a rationally rewired protein-protein interface (HK853wt and RR468mutant V13P, L14I, I17M and N21V)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.10 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

wwPDB Validation   3D Report Full Report


This is version 1.1 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: 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 e ...

    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
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histidine kinase AB258Thermotoga maritima MSB8Mutation(s): 0 
Gene Names: TM_0853
EC: 2.7.13.3
Find proteins for Q9WZV7 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Explore Q9WZV7 
Go to UniProtKB:  Q9WZV7
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Response regulator CD122Thermotoga maritima MSB8Mutation(s): 4 
Gene Names: TM_0468
Find proteins for Q9WYT9 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Explore Q9WYT9 
Go to UniProtKB:  Q9WYT9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.10 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 119.319α = 90
b = 143.928β = 90
c = 138.969γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
PHASERphasing
REFMACrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-04
    Type: Initial release
  • Version 1.1: 2013-09-25
    Changes: Database references, Structure summary