6FRW

X-ray structure of the levansucrase from Erwinia tasmaniensis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 

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Literature

Comparison of the Levansucrase from the epiphyte Erwinia tasmaniensis vs its homologue from the phytopathogen Erwinia amylovora.

Polsinelli, I.Caliandro, R.Salomone-Stagni, M.Demitri, N.Rejzek, M.Field, R.A.Benini, S.

(2019) Int J Biol Macromol 127: 496-501

  • DOI: 10.1016/j.ijbiomac.2019.01.074
  • Primary Citation of Related Structures:  
    6FRW

  • PubMed Abstract: 
  • Erwinia tasmaniensis is an epiphytic bacterium related to the plant pathogen Erwinia amylovora, the etiological agent of fire blight. In this study the levansucrase from E. tasmaniensis (EtLsc) has been compared with the homologous enzyme from E. amylovora (EaLsc) ...

    Erwinia tasmaniensis is an epiphytic bacterium related to the plant pathogen Erwinia amylovora, the etiological agent of fire blight. In this study the levansucrase from E. tasmaniensis (EtLsc) has been compared with the homologous enzyme from E. amylovora (EaLsc). We characterized the enzymatic activity and compared the products profile of both enzymes by High Performance Anion Exchange Chromatography coupled with Pulsed Amperometric Detector (HPAEC-PAD). Moreover we determined the crystal structure of EtLsc to understand the structural peculiarity causing the different product profiles of the two homologues. EtLsc exhibits increased efficiency in the production of FOS, resulting in a better catalyst for biotechnological synthesis than EaLsc. Based on our results, we propose that the role of this enzyme in the life cycle of the two bacteria is most likely related to survival, rather than linked to pathogenicity in E. amylovora.


    Organizational Affiliation

    Bioorganic Chemistry and Bio-Crystallography laboratory (B(2)Cl), Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100 Bolzano, Italy. Electronic address: stefano.benini@unibz.it.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Levansucrase (Beta-D-fructofuranosyl transferase)A411Erwinia tasmaniensisMutation(s): 0 
Gene Names: lscETA_34670
EC: 2.4.1.10
UniProt
Find proteins for B2VCC3 (Erwinia tasmaniensis (strain DSM 17950 / CFBP 7177 / CIP 109463 / NCPPB 4357 / Et1/99))
Explore B2VCC3 
Go to UniProtKB:  B2VCC3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB2VCC3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 128.493α = 90
b = 128.493β = 90
c = 58.945γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Free University of BolzanoItaly1440

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-06
    Type: Initial release