4CHI

(R)-selective amine transaminase from Aspergillus fumigatus at 1.27 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.27 Å
  • R-Value Free: 0.127 
  • R-Value Work: 0.103 
  • R-Value Observed: 0.104 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystallographic Characterization of the (R)-Selective Amine Transaminase from Aspergillus Fumigatus.

Thomsen, M.Skalden, L.Palm, G.J.Hohne, M.Bornscheuer, U.T.Hinrichs, W.

(2014) Acta Crystallogr D Biol Crystallogr 70: 1086

  • DOI: 10.1107/S1399004714001084
  • Primary Citation of Related Structures:  
    4CHI

  • PubMed Abstract: 
  • The importance of amine transaminases for producing optically pure chiral precursors for pharmaceuticals and chemicals has substantially increased in recent years. The X-ray crystal structure of the (R)-selective amine transaminase from the fungus Aspergillus fumigatus was solved by S-SAD phasing to 1 ...

    The importance of amine transaminases for producing optically pure chiral precursors for pharmaceuticals and chemicals has substantially increased in recent years. The X-ray crystal structure of the (R)-selective amine transaminase from the fungus Aspergillus fumigatus was solved by S-SAD phasing to 1.84 Å resolution. The refined structure at 1.27 Å resolution provides detailed knowledge about the molecular basis of substrate recognition and conversion to facilitate protein-engineering approaches. The protein forms a homodimer and belongs to fold class IV of the pyridoxal-5'-phosphate-dependent enzymes. Both subunits contribute residues to form two active sites. The structure of the holoenzyme shows the catalytically important cofactor pyridoxal-5'-phosphate bound as an internal aldimine with the catalytically responsible amino-acid residue Lys179, as well as in its free form. A long N-terminal helix is an important feature for the stability of this fungal (R)-selective amine transaminase, but is missing in branched-chain amino-acid aminotransferases and D-amino-acid aminotransferases.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Studies of the (R)-Selective Amine Transaminase from Aspergillus Fumigatus
      Thomsen, M., Skalden, L., Palm, G.J., Hoehne, M., Bornscheuer, U.T., Hinrichs, W.
      (2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 1415

    Organizational Affiliation

    Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Strasse 4, 17489 Greifswald, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASEA, B332Aspergillus fumigatus Af293Mutation(s): 0 
Gene Names: AFUA_7G06900
EC: 2.6.1 (PDB Primary Data), 2.6.1.18 (PDB Primary Data)
Find proteins for Q4WH08 (Neosartorya fumigata (strain ATCC MYA-4609 / Af293 / CBS 101355 / FGSC A1100))
Explore Q4WH08 
Go to UniProtKB:  Q4WH08
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PLP
Query on PLP

Download Ideal Coordinates CCD File 
C [auth A], K [auth B]PYRIDOXAL-5'-PHOSPHATE
C8 H10 N O6 P
NGVDGCNFYWLIFO-UHFFFAOYSA-N
 Ligand Interaction
PO4
Query on PO4

Download Ideal Coordinates CCD File 
D [auth A], L [auth B]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
E [auth A], M [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
K
Query on K

Download Ideal Coordinates CCD File 
G [auth A], H [auth A], O [auth B], P [auth B]POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
I [auth A], J [auth A], Q [auth B], R [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
NA
Query on NA

Download Ideal Coordinates CCD File 
F [auth A], N [auth B]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.27 Å
  • R-Value Free: 0.127 
  • R-Value Work: 0.103 
  • R-Value Observed: 0.104 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.367α = 90
b = 120.935β = 90
c = 135.464γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
SHELXCDEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-30
    Type: Initial release
  • Version 1.1: 2017-10-18
    Changes: Data collection