4CG1: Structural and functional studies on a thermostable polyethylene terephthalate degrading hydrolase from Thermobifida fusca

Citation:
Abstract
Bacterial cutinases are promising catalysts for the modification and degradation of the widely used plastic polyethylene terephthalate (PET). The improvement of the enzyme for industrial purposes is limited due to the lack of structural information for cutinases of bacterial origin. We have crystallized and structurally characterized a cutinase from Thermobifida fusca KW3 (TfCut2) in free as well as in inhibitor-bound form. Together with our analysis of the thermal stability and modelling studies, we suggest possible reasons for the outstanding thermostability in comparison to the less thermostable homolog from Thermobifida alba AHK119 and propose a model for the binding of the enzyme towards its polymeric substrate. The TfCut2 structure is the basis for the rational design of catalytically more efficient enzyme variants for the hydrolysis of PET and other synthetic polyesters.
PDB ID: 4CG1Download
MMDB ID: 120925
PDB Deposition Date: 2013/11/20
Updated in MMDB: 2014/09
Experimental Method:
x-ray diffraction
Resolution: 1.4  Å
Source Organism:
Similar Structures:
Biological Unit for 4CG1: monomeric; determined by author and by software (PISA)
Molecular Components in 4CG1
Label Count Molecule
Protein (1 molecule)
1
Cutinase
Molecule annotation
Chemicals (2 molecules)
1
2
* Click molecule labels to explore molecular sequence information.

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