4HYE

Crystal structure of a response regulator spr1814 from Streptococcus pneumoniae reveals unique interdomain contacts among NarL family proteins

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 

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Literature

Crystal structure of the response regulator spr1814 from Streptococcus pneumoniae reveals unique interdomain contacts among NarL family proteins.

Park, A.K., Moon, J.H., Oh, J.S., Lee, K.S., Chi, Y.M.

(2013) Biochem Biophys Res Commun 434: 65-69

  • DOI: 10.1016/j.bbrc.2013.03.065
  • Primary Citation of Related Structures:  
    4HYE

  • PubMed Abstract: 

    • Spr1814 belongs to the NarL/FixJ subfamily of signal transduction response regulators (RR), and has been predicted to regulate the neighboring ABC transporter, which translocates antibiotic molecules in Streptococcus pneumoniae. Here, we report the crystal structure of full-length unphosphorylated spr1814 at 1 ...

    Spr1814 belongs to the NarL/FixJ subfamily of signal transduction response regulators (RR), and has been predicted to regulate the neighboring ABC transporter, which translocates antibiotic molecules in Streptococcus pneumoniae. Here, we report the crystal structure of full-length unphosphorylated spr1814 at 1.7Å resolution. The asymmetric unit contains two spr1814 molecules, which display very different conformations. Through comparisons with other RRs structures, we concluded that one molecule adopts a general inactive conformation, whereas the other molecule adopts an intermediate conformation. The superposition of each molecule showed that rotational change of the effector domain occurred in intermediate conformational state, implying that domain rearrangement could occur upon phosphorylation.

    Organizational Affiliation: 

    Division of Biotechnology, College of Life Sciences, Korea University, Seoul 136-713, Republic of Korea.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Response regulatorA, B220Streptococcus pneumoniae R6Mutation(s): 0 
Gene Names: rr11, spr1814
UniProt
Find proteins for Q8DNC2 (Streptococcus pneumoniae (strain ATCC BAA-255 / R6))
Explore Q8DNC2 
Go to UniProtKB:  Q8DNC2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8DNC2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.91α = 90
b = 71.376β = 90
c = 117.727γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-06-05
    Type: Initial release
  • Version 1.1: 2017-11-15
    Changes: Refinement description