N-terminal Truncation Enables Crystallization of the Receptor-binding Domain of the FedF Bacterial Adhesin
Overview
Affiliations
FedF is the two-domain tip adhesin of F18 fimbriae from enterotoxigenic Escherichia coli. Bacterial adherence, mediated by the N-terminal receptor-binding domain of FedF to carbohydrate receptors on intestinal microvilli, causes diarrhoea and oedema disease in newly weaned piglets and induces the secretion of Shiga toxins. A truncate containing only the receptor-binding domain of FedF was found to be further cleaved at its N-terminus. Reconstruction of this N-terminal truncate rendered FedF amenable to crystallization, resulting in crystals with space group P2(1)2(1)2(1) and unit-cell parameters a = 36.20, b = 74.64, c = 99.03 A that diffracted to beyond 2 A resolution. The binding specificity of FedF was screened for on a glycan array, exposing 264 glycoconjugates, to identify specific receptors for cocrystallization with FedF.
Effect of Gravity on Bacterial Adhesion to Heterogeneous Surfaces.
Hogan K, Paul S, Lin G, Fuerte-Stone J, Sokurenko E, Thomas W Pathogens. 2023; 12(7).
PMID: 37513788 PMC: 10383686. DOI: 10.3390/pathogens12070941.
Duality of β-glucan microparticles: antigen carrier and immunostimulants.
Baert K, De Geest B, De Greve H, Cox E, Devriendt B Int J Nanomedicine. 2016; 11:2463-9.
PMID: 27330289 PMC: 4898424. DOI: 10.2147/IJN.S101881.
Nanobody mediated inhibition of attachment of F18 Fimbriae expressing Escherichia coli.
Moonens K, De Kerpel M, Coddens A, Cox E, Pardon E, Remaut H PLoS One. 2014; 9(12):e114691.
PMID: 25502211 PMC: 4263667. DOI: 10.1371/journal.pone.0114691.
Lonardi E, Moonens K, Buts L, de Boer A, Olsson J, Weiss M Biology (Basel). 2014; 2(3):894-917.
PMID: 24833052 PMC: 3960879. DOI: 10.3390/biology2030894.
Glycan microarrays for decoding the glycome.
Rillahan C, Paulson J Annu Rev Biochem. 2011; 80:797-823.
PMID: 21469953 PMC: 3116967. DOI: 10.1146/annurev-biochem-061809-152236.