Transaminase Structure of Plurienzyme (Tr2E2) in complex with PLP

Experimental Data Snapshot

  • Resolution: 3.50 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.200 

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A Plurizyme with Transaminase and Hydrolase Activity Catalyzes Cascade Reactions.

Roda, S.Fernandez-Lopez, L.Benedens, M.Bollinger, A.Thies, S.Schumacher, J.Coscolin, C.Kazemi, M.Santiago, G.Gertzen, C.G.W.Gonzalez-Alfonso, J.L.Plou, F.J.Jaeger, K.E.Smits, S.H.J.Ferrer, M.Guallar, V.

(2022) Angew Chem Int Ed Engl 61: e202207344

  • DOI: https://doi.org/10.1002/anie.202207344
  • Primary Citation of Related Structures:  
    7QX0, 7QX3, 7QYF, 7QYG

  • PubMed Abstract: 

    Engineering dual-function single polypeptide catalysts with two abiotic or biotic catalytic entities (or combinations of both) supporting cascade reactions is becoming an important area of enzyme engineering and catalysis. Herein we present the development of a PluriZyme, TR 2 E 2 , with efficient native transaminase (k cat : 69.49±1.77 min -1 ) and artificial esterase (k cat : 3908-0.41 min -1 ) activities integrated into a single scaffold, and evaluate its utility in a cascade reaction. TR 2 E 2 (pH opt : 8.0-9.5; T opt : 60-65 °C) efficiently converts methyl 3-oxo-4-(2,4,5-trifluorophenyl)butanoate into 3-(R)-amino-4-(2,4,5-trifluorophenyl)butanoic acid, a crucial intermediate for the synthesis of antidiabetic drugs. The reaction proceeds through the conversion of the β-keto ester into the β-keto acid at the hydrolytic site and subsequently into the β-amino acid (e.e. >99 %) at the transaminase site. The catalytic power of the TR 2 E 2 PluriZyme was proven with a set of β-keto esters, demonstrating the potential of such designs to address bioinspired cascade reactions.

  • Organizational Affiliation

    Department of Life Sciences, Barcelona Supercomputing Center, Carrer de Jordi Girona, 31, 08034, Barcelona, Spain.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Aminotransferase TR2
A, B, C, D
465AcidihalobacterMutation(s): 0 
Find proteins for A0A3G5BC54 (uncultured Acidihalobacter sp)
Explore A0A3G5BC54 
Go to UniProtKB:  A0A3G5BC54
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A3G5BC54
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.50 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.921α = 90
b = 107.627β = 90
c = 211.637γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
German Research Foundation (DFG)Germany417919780

Revision History  (Full details and data files)

  • Version 1.0: 2023-08-16
    Type: Initial release