6M2O

Double mutant(H333A/I334A) crystal structure of benzoate coenzyme A ligase

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 

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Literature

Chemoenzymatic Synthesis and Biological Evaluation for Bioactive Molecules Derived from Bacterial Benzoyl Coenzyme A Ligase and Plant Type III Polyketide Synthase.

Adhikari, K., Lo, I.W., Chen, C.L., Wang, Y.L., Lin, K.H., Zadeh, S.M., Rattinam, R., Li, Y.S., Wu, C.J., Li, T.L.

(2020) Biomolecules 10

  • DOI: 10.3390/biom10050738
  • Primary Citation of Related Structures:  
    6M2U, 6M2O

  • PubMed Abstract: 

    • Plant type III polyketide synthases produce diverse bioactive molecules with a great medicinal significance to human diseases. Here, we demonstrated versatility of a stilbene synthase (STS) from Pinus Sylvestris , which can accept various non ...

    Plant type III polyketide synthases produce diverse bioactive molecules with a great medicinal significance to human diseases. Here, we demonstrated versatility of a stilbene synthase (STS) from Pinus Sylvestris , which can accept various non-physiological substrates to form unnatural polyketide products. Three enzymes (4-coumarate CoA ligase, malonyl-CoA synthetase and engineered benzoate CoA ligase) along with synthetic chemistry was practiced to synthesize starter and extender substrates for STS. Of these, the crystal structures of benzoate CoA ligase (BadA) from Rhodopseudomonas palustris in an apo form or in complex with a 2-chloro-1,3-thiazole-5-carboxyl-AMP or 2-methylthiazole-5-carboxyl-AMP intermediate were determined at resolutions of 1.57 Å, 1.7 Å, and 2.13 Å, respectively, which reinforces its capacity in production of unusual CoA starters. STS exhibits broad substrate promiscuity effectively affording structurally diverse polyketide products. Seven novel products showed desired cytotoxicity against a panel of cancer cell lines (A549, HCT116, Cal27). With the treatment of two selected compounds, the cancer cells underwent cell apoptosis in a dose-dependent manner. The precursor-directed biosynthesis alongside structure-guided enzyme engineering greatly expands the pharmaceutical repertoire of lead compounds with promising/enhanced biological activities.

    Organizational Affiliation: 

    Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Benzoate-coenzyme A ligaseA, B524Rhodopseudomonas palustrisMutation(s): 4 
Gene Names: badA
Find proteins for Q93TK0 (Rhodopseudomonas palustris)
Explore Q93TK0 
Go to UniProtKB:  Q93TK0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.115α = 90
b = 95.379β = 105.05
c = 94.989γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2020-02-28 
  • Released Date: 2021-01-13 
    • Deposition Author(s): Li, T.L., Adhikari, K.

Revision History 

  • Version 1.0: 2021-01-13
    Type: Initial release