8FBC | pdb_00008fbc

Crystal structure of P450T2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.53 Å
  • R-Value Free: 
    0.191 (Depositor), 0.191 (DCC) 
  • R-Value Work: 
    0.164 (Depositor), 0.164 (DCC) 
  • R-Value Observed: 
    0.165 (Depositor) 

Starting Model: in silico
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history

Literature

Complete integration of carbene-transfer chemistry into biosynthesis.

Huang, J.Quest, A.Cruz-Morales, P.Deng, K.Pereira, J.H.Van Cura, D.Kakumanu, R.Baidoo, E.E.K.Dan, Q.Chen, Y.Petzold, C.J.Northen, T.R.Adams, P.D.Clark, D.S.Balskus, E.P.Hartwig, J.F.Mukhopadhyay, A.Keasling, J.D.

(2023) Nature 617: 403-408

  • DOI: https://doi.org/10.1038/s41586-023-06027-2
  • Primary Citation Related Structures: 
    8FBC

  • PubMed Abstract: 

    Biosynthesis is an environmentally benign and renewable approach that can be used to produce a broad range of natural and, in some cases, new-to-nature products. However, biology lacks many of the reactions that are available to synthetic chemists, resulting in a narrower scope of accessible products when using biosynthesis rather than synthetic chemistry. A prime example of such chemistry is carbene-transfer reactions 1 . Although it was recently shown that carbene-transfer reactions can be performed in a cell and used for biosynthesis 2,3 , carbene donors and unnatural cofactors needed to be added exogenously and transported into cells to effect the desired reactions, precluding cost-effective scale-up of the biosynthesis process with these reactions. Here we report the access to a diazo ester carbene precursor by cellular metabolism and a microbial platform for introducing unnatural carbene-transfer reactions into biosynthesis. The α-diazoester azaserine was produced by expressing a biosynthetic gene cluster in Streptomyces albus. The intracellularly produced azaserine was used as a carbene donor to cyclopropanate another intracellularly produced molecule-styrene. The reaction was catalysed by engineered P450 mutants containing a native cofactor with excellent diastereoselectivity and a moderate yield. Our study establishes a scalable, microbial platform for conducting intracellular abiological carbene-transfer reactions to functionalize a range of natural and new-to-nature products and expands the scope of organic products that can be produced by cellular metabolism.


  • Organizational Affiliation
    • Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.

Macromolecule Content 

  • Total Structure Weight: 89.86 kDa 
  • Atom Count: 7,309 
  • Modeled Residue Count: 784 
  • Deposited Residue Count: 790 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Cytochrome P450
A, B
395metagenomeMutation(s): 0 
Gene Names: DCM06_12860

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.53 Å
  • R-Value Free:  0.191 (Depositor), 0.191 (DCC) 
  • R-Value Work:  0.164 (Depositor), 0.164 (DCC) 
  • R-Value Observed: 0.165 (Depositor) 
Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.931α = 90
b = 95.61β = 90
c = 100.433γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
xia2data reduction
xia2data scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Department of Energy (DOE, United States)United StatesDE-AC02-05CH11231

Revision History  (Full details and data files)

  • Version 1.0: 2023-05-10
    Type: Initial release
  • Version 1.1: 2023-05-17
    Changes: Database references
  • Version 1.2: 2024-05-22
    Changes: Data collection