8X7D

Crystal structure of OsHSL1 L204F/F298L/I335F


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.213 

Starting Model: experimental
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Literature

An artificially evolved gene for herbicide-resistant rice breeding.

Dong, J.Yu, X.H.Dong, J.Wang, G.H.Wang, X.L.Wang, D.W.Yan, Y.C.Xiao, H.Ye, B.Q.Lin, H.Y.Yang, G.F.

(2024) Proc Natl Acad Sci U S A 121: e2407285121-e2407285121

  • DOI: https://doi.org/10.1073/pnas.2407285121
  • Primary Citation of Related Structures:  
    8X6Q, 8X74, 8X7C, 8X7D, 8XC3

  • PubMed Abstract: 

    Discovering and engineering herbicide-resistant genes is a crucial challenge in crop breeding. This study focuses on the 4-hydroxyphenylpyruvate dioxygenase Inhibitor Sensitive 1-Like (HSL) protein, prevalent in higher plants and exhibiting weak catalytic activity against many β-triketone herbicides (β-THs). The crystal structures of maize HSL1A complexed with β-THs were elucidated, identifying four essential herbicide-binding residues and explaining the weak activity of HSL1A against the herbicides. Utilizing an artificial evolution approach, we developed a series of rice HSL1 mutants targeting the four residues. Then, these mutants were systematically evaluated, identifying the M10 variant as the most effective in modifying β-THs. The initial active conformation of substrate binding in HSL1 was also revealed from these mutants. Furthermore, overexpression of M10 in rice significantly enhanced resistance to β-THs, resulting in a notable 32-fold increase in resistance to methyl-benquitrione. In conclusion, the artificially evolved M10 gene shows great potential for the development of herbicide-resistant crops.


  • Organizational Affiliation

    State Key Laboratory of Green Pesticide, Central China Normal University, Wuhan 430079, People's Republic of China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HPPD Inhibitor Sensitive 1-like 1 protein
A, B
350Oryza sativaMutation(s): 3 
Gene Names: OsHSL1
UniProt
Find proteins for Q8H620 (Oryza sativa subsp. japonica)
Explore Q8H620 
Go to UniProtKB:  Q8H620
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8H620
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.213 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.019α = 90
b = 140.474β = 111.89
c = 58.976γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2024-10-02
    Type: Initial release