8HOP

Crystal structure of the P450 BM3 heme domain mutant F87A in complex with Im-C6-Nap-Tyr


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Anchoring a Structurally Editable Proximal Cofactor-like Module to Construct an Artificial Dual-center Peroxygenase.

Qin, X.Jiang, Y.Yao, F.Chen, J.Kong, F.Zhao, P.Jin, L.Cong, Z.

(2023) Angew Chem Int Ed Engl 62: e202311259-e202311259

  • DOI: https://doi.org/10.1002/anie.202311259
  • Primary Citation of Related Structures:  
    7Y0T, 8HON, 8HOP, 8HOQ, 8HOR, 8HOS, 8HOU

  • PubMed Abstract: 

    A recent novel strategy for constructing artificial metalloenzymes (ArMs) that target new-to-nature functions uses dual-functional small molecules (DFSMs) with catalytic and anchoring groups for converting P450BM3 monooxygenase into a peroxygenase. However, this process requires excess DFSMs (1000 equivalent of P450) owing to their low binding affinity for P450, thus severely limiting its practical application. Herein, structural optimization of the DFSM-anchoring group considerably enhanced their binding affinity by three orders of magnitude (K d ≈10 -8  M), thus approximating native cofactors, such as FMN or FAD in flavoenzymes. An artificial cofactor-driven peroxygenase was thus constructed. The co-crystal structure of P450BM3 bound to a DFSM clearly revealed a precatalytic state in which the DFSM participates in H 2 O 2 activation, thus facilitating peroxygenase activity. Moreover, the increased binding affinity substantially decreases the DFSM load to as low as 2 equivalents of P450, while maintaining increased activity. Furthermore, replacement of catalytic groups showed disparate selectivity and activity for various substrates. This study provides an unprecedented approach for assembling ArMs by binding editable organic cofactors as a co-catalytic center, thereby increasing the catalytic promiscuity of P450 enzymes.


  • Organizational Affiliation

    CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bifunctional cytochrome P450/NADPH--P450 reductase
A, B
465Priestia megateriumMutation(s): 1 
Gene Names: BTA37_15100
EC: 1.14.14.1 (PDB Primary Data), 1.6.2.4 (PDB Primary Data)
UniProt
Find proteins for P14779 (Priestia megaterium (strain ATCC 14581 / DSM 32 / CCUG 1817 / JCM 2506 / NBRC 15308 / NCIMB 9376 / NCTC 10342 / NRRL B-14308 / VKM B-512 / Ford 19))
Explore P14779 
Go to UniProtKB:  P14779
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14779
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Im-C6-Nap-Tyr
C, D
3synthetic constructMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
ALN
Query on ALN
C, D
L-PEPTIDE LINKINGC13 H13 N O2ALA
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.816α = 90
b = 147.934β = 100.08
c = 64.787γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata scaling
autoPROCdata reduction
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China22207112
National Natural Science Foundation of China (NSFC)China21977104

Revision History  (Full details and data files)

  • Version 1.0: 2023-12-13
    Type: Initial release
  • Version 1.1: 2023-12-27
    Changes: Database references