Sammanfattning

Mannose-specific adhesion of Escherichia coli bacteria to cell surfaces, the cause of various infections, is mediated by a fimbrial lectin, called FimH. X-ray studies have revealed a carbohydrate recognition domain (CRD) on FimH that can complex alpha-D-mannosides. However, as the precise nature of the ligand-receptor interactions in mannose-specific adhesion is not yet fully understood, it is of interest to identify carbohydrate recognition domains on the fimbrial lectin also in solution. Photoaffinity labeling serves as an appropriate methodology in this endeavour and hence biotin-labeled photoactive mannosides were designed and synthesized for photoaffinity labeling of FimH. So far, the photo-crosslinking properties of the new photoactive mannosides could be detailed with the peptide angiotensin II and labeling of FimH was shown both by MS/MS studies and by affino dot-blot analysis.

Nyckelord

diazirines; FimH; lectins; MS/MS analysis; photoactive mannoside ligands; photoaffinity labeling

Publicerad i

Beilstein Journal of Organic Chemistry
2010, Volym: 6, sidor: 810-822
Utgivare: BEILSTEIN-INSTITUT

SLU författare

• Knight, Stefan David

  • Institutionen för molekylärbiologi, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Organisk kemi


Publikationens identifierare

DOI: https://doi.org/10.3762/bjoc.6.91

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/59559