4CMF

The (R)-selective transaminase from Nectria haematococca with inhibitor bound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.180 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.154 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

The Substrate Specificity, Enantioselectivity and Structure of the (R)-Selective Amine:Pyruvate Transaminase from Nectria Haematococca.

Sayer, C.Martinez-Torres, R.J.Richter, N.Isupov, M.N.Hailes, H.C.Littlechild, J.A.Ward, J.M.

(2014) FEBS J 281: 2240

  • DOI: https://doi.org/10.1111/febs.12778
  • Primary Citation of Related Structures:  
    4CMD, 4CMF

  • PubMed Abstract: 

    During the last decade the use of transaminases for the production of pharmaceutical and fine chemical intermediates has attracted a great deal of attention. Transaminases are versatile biocatalysts for the efficient production of amine intermediates and many have (S)-enantiospecificity. Transaminases with (R)-specificity are needed to expand the applications of these enzymes in biocatalysis. In this work we have identified a fungal putative (R)-specific transaminase from the Eurotiomycetes Nectria haematococca, cloned a synthetic version of this gene, demonstrated (R)-selective deamination of several substrates including (R)-α-methylbenzylamine, as well as production of (R)-amines, and determined its crystal structure. The crystal structures of the holoenzyme and the complex with an inhibitor gabaculine offer the first detailed insight into the structural basis for substrate specificity and enantioselectivity of the industrially important class of (R)-selective amine : pyruvate transaminases. The atomic coordinates and structure factors for the Nectria TAm in holoenzyme and gabaculine-bound forms have been deposited in the PDB as entries 4cmd and 4cmf respectively.


  • Organizational Affiliation

    Henry Wellcome Building for Biocatalysis, College of Life and Environmental Sciences, University of Exeter, EX4 4QD, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
AMINOTRANSFERASE322Fusarium vanetteniiMutation(s): 0 
EC: 2.6.1.42
UniProt
Find proteins for C7YVL8 (Fusarium vanettenii (strain ATCC MYA-4622 / CBS 123669 / FGSC 9596 / NRRL 45880 / 77-13-4))
Explore C7YVL8 
Go to UniProtKB:  C7YVL8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupC7YVL8
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.180 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.154 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.73α = 90
b = 100.34β = 90
c = 130.25γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-03-26
    Type: Initial release
  • Version 1.1: 2014-05-14
    Changes: Database references
  • Version 1.2: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description