1989
DOI: 10.1073/pnas.86.12.4357
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The PapG adhesin of uropathogenic Escherichia coli contains separate regions for receptor binding and for the incorporation into the pilus.

Abstract: Most uropathogenic strains of Escherichia coli produce heteropolymeric organelles, known as P pili, that bind to the globoseries of glycolipids present in the urinary tract. The formation of a P pilus is the result of a family of related proteins being coordinately assembled into the structure in a defined order with the adhesin located exclusively at the tip. The preassembled digalactoside a-D-galactopyranosyl-(1--4)-.8-D-galactopyranose-binding adhesin was purified to homogeneity from the periplasmic space i… Show more

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Cited by 172 publications
(133 citation statements)
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“…The same compound has also been isolated from the small intestine of miniature swine and characterized by NMR. 7 The A9 type 1 glycosphingolipid differs from the A9 type 3 structure (35) only in that the core Gal at position 4 is 3-linked instead of 4-linked. However, this affects the anomeric region of the NMR spectrum significantly as regards the internal blood group A determinant, as summarized in Table 2.…”
Section: Isolation and Characterization Of F18-binding Glycosphingolimentioning
confidence: 99%
See 1 more Smart Citation
“…The same compound has also been isolated from the small intestine of miniature swine and characterized by NMR. 7 The A9 type 1 glycosphingolipid differs from the A9 type 3 structure (35) only in that the core Gal at position 4 is 3-linked instead of 4-linked. However, this affects the anomeric region of the NMR spectrum significantly as regards the internal blood group A determinant, as summarized in Table 2.…”
Section: Isolation and Characterization Of F18-binding Glycosphingolimentioning
confidence: 99%
“…FedF is the adhesive subunit and is presumably located at the tip of the fimbrial structure (5,6). Typically, tip adhesins consist of two domains: an N-terminal carbohydrate-specific lectin domain and a C-terminal pilin domain (7), which needs to be donor-strand-complemented to stabilize its incomplete Ig fold (8,9). Crystal structures of the lectin domains of type 1 pili, P pili, and F17 fimbrial adhesins reveal that they all have the immunoglobulin-like (Ig-like) fold in common, which is remarkable, because they show little to no sequence identity (10).…”
mentioning
confidence: 99%
“…The P pilus comprises a flexible-tip fibrillum made up of minor pilins with the two-domain adhesin PapG at the distal end where it can recognize Galα1-4Gal disaccharide-containing glycolipids found in the human kidney (14,15). The P pilus tip is joined to a righthanded, helical pilus rod made up of PapA pilins (16,17) and is anchored in the OM via the terminator/anchoring subunit PapH (18).…”
mentioning
confidence: 99%
“…The plates were blocked with 2% BSA in PBS, then treated with PapD^PapG complex (20 Wg/ml) in blocking bu¡er overnight at 4³C. After washing, the PapD^PapG complex was detected with rabbit anti-PapG antiserum [28], diluted 1:100 and applied at room temperature for 2 h. Ligands bound to the plates were visualized using horseradish peroxidase-conjugated goat anti-rabbit immunoglobulins (diluted 1:100) for 90 min at room temperature, followed by diaminobenzidine development (Pierce, Rockford, IL, USA). Parallel plates were stained with 0.2% orcinol spray to estimate glycolipid loading.…”
Section: Glycolipid Extractions and Adhesin Binding Assaysmentioning
confidence: 99%
“…P pili [2,27] and the PapD^PapG complex [5,28] were isolated from E. coli strain HB101 bearing the appropriate plasmid as described previously. The papG gene was subcloned from plasmid pPAP5 that contains the entire pap operon cloned from the E. coli strain J96 isolate of serotype O4:K6 [29], derived from a case of human pyelonephritis.…”
Section: Bacterial Componentsmentioning
confidence: 99%