4Z8U

CRYSTAL STRUCTURE OF AvrRxo1-ORF1:-ORF2 WITH ATP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.202 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.7 of the entry. See complete history


Literature

Crystal Structure of Xanthomonas AvrRxo1-ORF1, a Type III Effector with a Polynucleotide Kinase Domain, and Its Interactor AvrRxo1-ORF2.

Han, Q.Zhou, C.Wu, S.Liu, Y.Triplett, L.Miao, J.Tokuhisa, J.Deblais, L.Robinson, H.Leach, J.E.Li, J.Zhao, B.

(2015) Structure 23: 1900-1909

  • DOI: https://doi.org/10.1016/j.str.2015.06.030
  • Primary Citation of Related Structures:  
    4Z8Q, 4Z8T, 4Z8U, 4Z8V

  • PubMed Abstract: 

    Xanthomonas oryzae pv. oryzicola (Xoc) causes bacterial leaf streak (BLS) disease on rice plants. Xoc delivers a type III effector AvrRxo1-ORF1 into rice plant cells that can be recognized by disease resistance (R) protein Rxo1, and triggers resistance to BLS disease. However, the mechanism and virulence role of AvrRxo1 is not known. In the genome of Xoc, AvrRxo1-ORF1 is adjacent to another gene AvrRxo1-ORF2, which was predicted to encode a molecular chaperone of AvrRxo1-ORF1. We report the co-purification and crystallization of the AvrRxo1-ORF1:AvrRxo1-ORF2 tetramer complex at 1.64 Å resolution. AvrRxo1-ORF1 has a T4 polynucleotide kinase domain, and expression of AvrRxo1-ORF1 suppresses bacterial growth in a manner dependent on the kinase motif. Although AvrRxo1-ORF2 binds AvrRxo1-ORF1, it is structurally different from typical effector-binding chaperones, in that it has a distinct fold containing a novel kinase-binding domain. AvrRxo1-ORF2 functions to suppress the bacteriostatic activity of AvrRxo1-ORF1 in bacterial cells.


  • Organizational Affiliation

    Laboratory of Tropical Veterinary Medicine and Vector Biology, and Hainan Key Laboratory of Sustainable Utilization of Tropical Bioresources, College of Agriculture, Hainan University, Haikou 570228, Hainan, China; Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
AvrRxo1-ORF1333Xanthomonas oryzae pv. oryzicolaMutation(s): 0 
UniProt
Find proteins for Q6TKR8 (Xanthomonas oryzae pv. oryzicola)
Explore Q6TKR8 
Go to UniProtKB:  Q6TKR8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6TKR8
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
AvrRxo1-ORF298Xanthomonas oryzae pv. oryzicolaMutation(s): 0 
UniProt
Find proteins for Q6TKR9 (Xanthomonas oryzae pv. oryzicola)
Explore Q6TKR9 
Go to UniProtKB:  Q6TKR9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6TKR9
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.202 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.225α = 90
b = 88.385β = 90
c = 152.709γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
SCALAdata scaling
MOLREPphasing
REFMACrefinement

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United StatesIOS-0845283
United States Department of Agriculture (USDA), National Institute of Food and Agriculture (NIFA, United States)United States2011-67012-30570
United States Department of Agriculture (USDA), National Institute of Food and Agriculture (NIFA, United States)United States2014-67013-21564
National Natural Science Foundation of China (NSFC)China31472186

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-23
    Type: Initial release
  • Version 1.1: 2015-10-21
    Changes: Database references
  • Version 1.2: 2017-09-20
    Changes: Author supporting evidence, Database references, Derived calculations
  • Version 1.3: 2019-11-27
    Changes: Author supporting evidence
  • Version 1.4: 2022-03-16
    Changes: Author supporting evidence, Database references
  • Version 1.5: 2023-09-27
    Changes: Data collection, Refinement description
  • Version 1.6: 2023-11-15
    Changes: Data collection
  • Version 1.7: 2024-10-30
    Changes: Structure summary