5FID

Crystal structure of the protein elicitor MoHrip2 from Magnaporthe oryzae

  • Classification: TOXIN
  • Organism(s): Pyricularia oryzae
  • Expression System: Escherichia coli
  • Mutation(s): Yes 

  • Deposited: 2015-12-23 Released: 2016-12-07 
  • Deposition Author(s): Liu, M., Duan, L., Qiu, D., Liu, X.
  • Funding Organization(s): National High Technology Research and Development Program of China (863 Program), National Natural Science Foundation of Chinia

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.81 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.165 

wwPDB Validation 3D Report Full Report



Literature

Crystal Structure Analysis and the Identification of Distinctive Functional Regions of the Protein Elicitor Mohrip2

Liu, M.Duan, L.Wang, M.Zeng, H.Liu, X.Qiu, D.

(2016) Front Plant Sci 7: 1103-1103

  • DOI: 10.3389/fpls.2016.01103
  • Primary Citation of Related Structures:  
    5FID

  • PubMed Abstract: 
  • The protein elicitor MoHrip2, which was extracted from Magnaporthe oryzae as an exocrine protein, triggers the tobacco immune system and enhances blast resistance in rice. However, the detailed mechanisms by which MoHrip2 acts as an elicitor remain u ...

    The protein elicitor MoHrip2, which was extracted from Magnaporthe oryzae as an exocrine protein, triggers the tobacco immune system and enhances blast resistance in rice. However, the detailed mechanisms by which MoHrip2 acts as an elicitor remain unclear. Here, we investigated the structure of MoHrip2 to elucidate its functions based on molecular structure. The three-dimensional structure of MoHrip2 was obtained. Overall, the crystal structure formed a β-barrel structure and showed high similarity to the pathogenesis-related (PR) thaumatin superfamily protein thaumatin-like xylanase inhibitor (TL-XI). To investigate the functional regions responsible for MoHrip2 elicitor activities, the full length and eight truncated proteins were expressed in Escherichia coli and were evaluated for elicitor activity in tobacco. Biological function analysis showed that MoHrip2 triggered the defense system against Botrytis cinerea in tobacco. Moreover, only MoHrip2M14 and other fragments containing the 14 amino acids residues in the middle region of the protein showed the elicitor activity of inducing a hypersensitive response and resistance related pathways, which were similar to that of full-length MoHrip2. These results revealed that the central 14 amino acid residues were essential for anti-pathogenic activity.


    Organizational Affiliation

    State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection - Chinese Academy of Agricultural Sciences Beijing, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Elicitor protein Hrip2A, B137Pyricularia oryzaeMutation(s): 1 
Gene Names: hrip2
Find proteins for I3RTU7 (Magnaporthe oryzae)
Explore I3RTU7 
Go to UniProtKB:  I3RTU7
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.81 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.165 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.245α = 90
b = 43.511β = 92.88
c = 74.001γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SCALEPACKdata reduction
HKL-2000data scaling
AutoSolphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National High Technology Research and Development Program of China (863 Program)ChinaNo.2011AA10A205
National Natural Science Foundation of ChiniaChinaNo.31371984

Revision History 

  • Version 1.0: 2016-12-07
    Type: Initial release