5YA0

Crystal structure of LsrK and HPr complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Evidence of link between quorum sensing and sugar metabolism inEscherichia colirevealed via cocrystal structures of LsrK and HPr

Ha, J.H.Hauk, P.Cho, K.Eo, Y.Ma, X.Stephens, K.Cha, S.Jeong, M.Suh, J.Y.Sintim, H.O.Bentley, W.E.Ryu, K.S.

(2018) Sci Adv 4: eaar7063-eaar7063

  • DOI: https://doi.org/10.1126/sciadv.aar7063
  • Primary Citation of Related Structures:  
    5YA0, 5YA1, 5YA2

  • PubMed Abstract: 

    Quorum sensing (QS), a bacterial process that regulates population-scale behavior, is mediated by small signaling molecules, called autoinducers (AIs), that are secreted and perceived, modulating a "collective" phenotype. Because the autoinducer AI-2 is secreted by a wide variety of bacterial species, its "perception" cues bacterial behavior. This response is mediated by the lsr (LuxS-regulated) operon that includes the AI-2 transporter LsrACDB and the kinase LsrK. We report that HPr, a phosphocarrier protein central to the sugar phosphotransferase system of Escherichia coli , copurifies with LsrK. Cocrystal structures of an LsrK/HPr complex were determined, and the effects of HPr and phosphorylated HPr on LsrK activity were assessed. LsrK activity is inhibited when bound to HPr, revealing new linkages between QS activity and sugar metabolism. These findings help shed new light on the abilities of bacteria to rapidly respond to changing nutrient levels at the population scale. They also suggest new means of manipulating QS activity among bacteria and within various niches.


  • Organizational Affiliation

    Protein Structure Research Group, Korea Basic Science Institute, 162 Yeongudanji-ro, Ochang-eup, Cheongju-si, Chungcheongbuk-do 28119, South Korea.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Autoinducer-2 kinase
A, B
540Escherichia coli K-12Mutation(s): 0 
Gene Names: lsrKydeVb1511JW1504
EC: 2.7.1.189
UniProt
Find proteins for P77432 (Escherichia coli (strain K12))
Explore P77432 
Go to UniProtKB:  P77432
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP77432
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Phosphocarrier protein HPr
C, D
85Escherichia coli K-12Mutation(s): 0 
Gene Names: ptsHhprb2415JW2408
EC: 2.7.11
UniProt
Find proteins for P0AA04 (Escherichia coli (strain K12))
Explore P0AA04 
Go to UniProtKB:  P0AA04
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AA04
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.156α = 90
b = 101.156β = 90
c = 344.323γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data collection
HKL-2000data scaling
PHENIXphasing
PHENIXrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-07-11
    Type: Initial release