X-ray structure of the levansucrase from Erwinia tasmaniensisX-ray structure of the levansucrase from Erwinia tasmaniensis

Structural highlights

6frw is a 1 chain structure with sequence from Erwinia tasmaniensis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.52Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

B2VCC3_ERWT9

Publication Abstract from PubMed

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.

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 RA, Benini S Int J Biol Macromol. 2019 Apr 15;127:496-501. doi:, 10.1016/j.ijbiomac.2019.01.074. Epub 2019 Jan 17. PMID:30660564[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Polsinelli I, Caliandro R, Salomone-Stagni M, Demitri N, Rejzek M, Field RA, Benini S. Comparison of the Levansucrase from the epiphyte Erwinia tasmaniensis vs its homologue from the phytopathogen Erwinia amylovora. Int J Biol Macromol. 2019 Apr 15;127:496-501. doi:, 10.1016/j.ijbiomac.2019.01.074. Epub 2019 Jan 17. PMID:30660564 doi:http://dx.doi.org/10.1016/j.ijbiomac.2019.01.074

6frw, resolution 1.52Å

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