D 2009

Novel two - domain superlectin from the human opportunistic pathogen Bukholderia cenocepacia

ŠULÁK, Ondřej, Monia DELIA, Gianluca CIOCI, Annabelle VARROT, Anne IMBERTY et. al.

Basic information

Original name

Novel two - domain superlectin from the human opportunistic pathogen Bukholderia cenocepacia

Name in Czech

Nový superlektin z lidského podmíněného patogenu Burkholderia cenocepacia

Authors

ŠULÁK, Ondřej, Monia DELIA, Gianluca CIOCI, Annabelle VARROT, Anne IMBERTY and Michaela WIMMEROVÁ

Edition

Brno, Cukrblik 2009, p. 28-87, 2009

Publisher

Masarykova univerzita

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Science

ISBN

978-80-210-4831-7

Keywords in English

Superlectin; X ray; Isothermal titration callorimetry; Burkolderia cenocepacia

Tags

International impact, Reviewed
Změněno: 9/4/2010 09:19, prof. RNDr. Michaela Wimmerová, Ph.D.

Abstract

V originále

Lectins are known for their ability to agglutinate erythrocytes in vitro. Plant and animal pathogens use these protein-carbohydrate interactions in their strategy for host recognition and invasion. Burkholderia cenocepacia is a Gram-negative bacterium that can be found throughout the environment.Four genes coding protein homologues to the lectin PA-IIL from Pseudomonas aeruginosa have been found in the genome of B. cenocepacia. One of them, BclC, is a 28 kDa protein. Further sequence analysis showed two distinct domains in the protein structure. The C-terminal part coding lectin domain shows partial homology to the PA-IIL lectin, as mentioned above, and the N-terminal part is unknown. Both domains were also cloned separately. The results indicated the unusual binding activity of the protein. The C-terminal domain recognizes D-mannosylated saccharides with high affinity. Interestingly, the N-terminal domain also displays sugar-binding activity with a strong preference for L-fucosylated oligosaccharides, the Lewis type determinants.

In Czech

Hlavním smyslem této studie je snaha porozumět molekulárním mechanismům, zejména protein sacharidovým interakcím, které umožňují patogenní bakterii takto napadat, kolonizovat a ovlivňovat fysiopatologii jejich hostitele. Detailní funkční studie pomocí Surface Plasmon Resonance a mikrokalorimetrických metod umožnily charakterizovat vazebné vlastnosti (afinita, specifita) a termodynamické parametry interakce lektinu s vybranými sacharidy.

Links

MSM0021622413, plan (intention)
Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment