7W7H

S Suis FakA-FakB2 complex structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 

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Literature

Structure and mechanism for streptococcal fatty acid kinase (Fak) system dedicated to host fatty acid scavenging.

Shi, Y.Zang, N.Lou, N.Xu, Y.Sun, J.Huang, M.Zhang, H.Lu, H.Zhou, C.Feng, Y.

(2022) Sci Adv 8: eabq3944-eabq3944

  • DOI: 10.1126/sciadv.abq3944
  • Primary Citation of Related Structures:  
    7W7H

  • PubMed Abstract: 
  • Staphylococcus and Streptococcus , two groups of major human pathogens, are equipped with a fatty acid kinase (Fak) machinery to scavenge host fatty acids. The Fak complex is contains an ATP-binding subunit FakA, which interacts with varied FakB isoforms, and synthesizes acyl-phosphate from extracellular fatty acids ...

    Staphylococcus and Streptococcus , two groups of major human pathogens, are equipped with a fatty acid kinase (Fak) machinery to scavenge host fatty acids. The Fak complex is contains an ATP-binding subunit FakA, which interacts with varied FakB isoforms, and synthesizes acyl-phosphate from extracellular fatty acids. However, how FakA recognizes its FakB partners and then activates different fatty acids is poorly understood. Here, we systematically describe the Fak system from the zoonotic pathogen, Streptococcus suis . The crystal structure of SsFakA complexed with SsFakB2 was determined at 2.6 Å resolution. An in vitro system of Fak-PlsX (phosphate: acyl-ACP transacylase) was developed to track acyl-phosphate intermediate and its final product acyl-ACP. Structure-guided mutagenesis enabled us to characterize a mechanism for streptococcal FakA working with FakB partners engaged in host fatty acid scavenging. These findings offer a comprehensive description of the Fak kinase machinery, thus advancing the discovery of attractive targets against deadly infections with Streptococcus .


    Organizational Affiliation

    College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Predicted kinase related to dihydroxyacetone kinaseA, B554Streptococcus suis 05ZYH33Mutation(s): 0 
Gene Names: SSU05_1861
UniProt
Find proteins for A4VXI8 (Streptococcus suis (strain 05ZYH33))
Explore A4VXI8 
Go to UniProtKB:  A4VXI8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA4VXI8
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Uncharacterized protein conserved in bacteriaC [auth E]277Streptococcus suis 05ZYH33Mutation(s): 0 
Gene Names: SSU05_1650
UniProt
Find proteins for A4VWX7 (Streptococcus suis (strain 05ZYH33))
Explore A4VWX7 
Go to UniProtKB:  A4VWX7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA4VWX7
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 107.749α = 90
b = 107.749β = 90
c = 398.999γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, China)China--

Revision History  (Full details and data files)

  • Version 1.0: 2022-09-21
    Type: Initial release