7P6T image
Entry Detail
PDB ID:
7P6T
Title:
Crystal structure of the FimH-binding decoy module of human glycoprotein 2 (GP2) (crystal form III)
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2021-07-17
Release Date:
2022-03-16
Method Details:
Experimental Method:
Resolution:
1.40 Å
R-Value Free:
0.22
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
C 1 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Isoform Alpha of Pancreatic secretory granule membrane major glycoprotein GP2
Chain IDs:A
Chain Length:161
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation

Abstact

Glycoprotein 2 (GP2) and uromodulin (UMOD) filaments protect against gastrointestinal and urinary tract infections by acting as decoys for bacterial fimbrial lectin FimH. By combining AlphaFold2 predictions with X-ray crystallography and cryo-EM, we show that these proteins contain a bipartite decoy module whose new fold presents the high-mannose glycan recognized by FimH. The structure rationalizes UMOD mutations associated with kidney diseases and visualizes a key epitope implicated in cast nephropathy.

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Primary Citation of related structures