2MLK

Three-dimensional structure of the C-terminal DNA-binding domain of RstA protein from Klebsiella pneumoniae


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 150 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural dynamics of the two-component response regulator RstA in recognition of promoter DNA element.

Li, Y.C.Chang, C.K.Chang, C.F.Cheng, Y.H.Fang, P.J.Yu, T.Chen, S.C.Li, Y.C.Hsiao, C.D.Huang, T.H.

(2014) Nucleic Acids Res 42: 8777-8788

  • DOI: 10.1093/nar/gku572
  • Primary Citation of Related Structures:  
    2MLK, 4NHJ, 4NIC

  • PubMed Abstract: 
  • The RstA/RstB system is a bacterial two-component regulatory system consisting of the membrane sensor, RstB and its cognate response regulator (RR) RstA. The RstA of Klebsiella pneumoniae (kpRstA) consists of an N-terminal receiver domain (RD, residues 1-119) and a C-terminal DNA-binding domain (DBD, residues 130-236) ...

    The RstA/RstB system is a bacterial two-component regulatory system consisting of the membrane sensor, RstB and its cognate response regulator (RR) RstA. The RstA of Klebsiella pneumoniae (kpRstA) consists of an N-terminal receiver domain (RD, residues 1-119) and a C-terminal DNA-binding domain (DBD, residues 130-236). Phosphorylation of kpRstA induces dimerization, which allows two kpRstA DBDs to bind to a tandem repeat, called the RstA box, and regulate the expression of downstream genes. Here we report the solution and crystal structures of the free kpRstA RD, DBD and DBD/RstA box DNA complex. The structure of the kpRstA DBD/RstA box complex suggests that the two protomers interact with the RstA box in an asymmetric fashion. Equilibrium binding studies further reveal that the two protomers within the kpRstA dimer bind to the RstA box in a sequential manner. Taken together, our results suggest a binding model where dimerization of the kpRstA RDs provides the platform to allow the first kpRstA DBD protomer to anchor protein-DNA interaction, whereas the second protomer plays a key role in ensuring correct recognition of the RstA box.


    Related Citations: 
    • (1)H, (13)C and (15)N resonance assignments of the C-terminal DNA-binding domain of RstA protein from Klebsiella pneumoniae.
      Chen, S.C., Chang, C.F., Fan, P.J., Cheng, Y.H., Yu, T., Huang, T.H.
      (2013) Biomol NMR Assign 7: 85

    Organizational Affiliation

    Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan, ROC Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC Department of Physics, National Taiwan Normal University, Taipei 116, Taiwan, ROC bmthh@ibms.sinica.edu.tw.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RstAA119Klebsiella pneumoniaeMutation(s): 0 
Gene Names: D364_07465
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 150 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-07-16
    Type: Initial release
  • Version 1.1: 2014-08-13
    Changes: Database references