5A2G

An esterase from anaerobic Clostridium hathewayi can hydrolyze aliphatic aromatic polyesters


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

An Esterase from Anaerobic Clostridium Hathewayi Can Hydrolyze Aliphatic-Aromatic Polyesters.

Perz, V.Hromic, A.Baumschlager, A.Steinkellner, G.Pavkov-Keller, T.Gruber, K.Bleymaier, K.Zitzenbacher, S.Zankel, A.Mayrhofer, C.Sinkel, C.Kueper, U.Schlegel, K.Ribitsch, D.Guebitz, G.M.

(2016) Environ Sci Technol 50: 2899

  • DOI: 10.1021/acs.est.5b04346
  • Primary Citation of Related Structures:  
    5A2G

  • PubMed Abstract: 
  • Recently, a variety of biodegradable polymers have been developed as alternatives to recalcitrant materials. Although many studies on polyester biodegradability have focused on aerobic environments, there is much less known on biodegradation of polye ...

    Recently, a variety of biodegradable polymers have been developed as alternatives to recalcitrant materials. Although many studies on polyester biodegradability have focused on aerobic environments, there is much less known on biodegradation of polyesters in natural and artificial anaerobic habitats. Consequently, the potential of anaerobic biogas sludge to hydrolyze the synthetic compostable polyester PBAT (poly(butylene adipate-co-butylene terephthalate) was evaluated in this study. On the basis of reverse-phase high-performance liquid chromatography (RP-HPLC) analysis, accumulation of terephthalic acid (Ta) was observed in all anaerobic batches within the first 14 days. Thereafter, a decline of Ta was observed, which occurred presumably due to consumption by the microbial population. The esterase Chath_Est1 from the anaerobic risk 1 strain Clostridium hathewayi DSM-13479 was found to hydrolyze PBAT. Detailed characterization of this esterase including elucidation of the crystal structure was performed. The crystal structure indicates that Chath_Est1 belongs to the α/β-hydrolases family. This study gives a clear hint that also micro-organisms in anaerobic habitats can degrade manmade PBAT.


    Organizational Affiliation

    Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna , Konrad Lorenz Strasse 20, 3430 Tulln, Austria.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CARBOXYLIC ESTER HYDROLASEABCD522Hungatella hathewayi DSM 13479Mutation(s): 0 
Gene Names: CLOSTHATH_07193
EC: 3.1.1
Find proteins for D3AU79 (Hungatella hathewayi DSM 13479)
Explore D3AU79 
Go to UniProtKB:  D3AU79
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download CCD File 
A, B, C, D
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.05α = 90
b = 241.83β = 90
c = 83.58γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
XDSphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History 

  • Version 1.0: 2016-02-24
    Type: Initial release
  • Version 1.1: 2016-03-09
    Changes: Database references
  • Version 1.2: 2016-03-30
    Changes: Database references