1ZDX | pdb_00001zdx

Solution Structure of the type 1 pilus assembly platform FimD(25-125)

• PDB DOI: https://doi.org/10.2210/pdb1ZDX/pdb
• BMRB: 6629
• BMRB: 6779

• Classification: MEMBRANE PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-04-15 Released: 2005-06-14 
• Deposition Author(s): Nishiyama, M., Horst, R., Herrmann, T., Vetsch, M., Bettendorff, P., Ignatov, O., Grutter, M., Wuthrich, K., Glockshuber, R., Capitani, G.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Structural basis of chaperone-subunit complex recognition by the type 1 pilus assembly platform FimD.

Nishiyama, M., Horst, R., Eidam, O., Herrmann, T., Ignatov, O., Vetsch, M., Bettendorff, P., Jelesarov, I., Glockshuber, R., Capitani, G.

(2005) EMBO J 24: 2075-2086

• PubMed: 15920478 
• DOI: https://doi.org/10.1038/sj.emboj.7600693
• Primary Citation Related Structures: 
  1ZDV, 1ZDX, 1ZE3


• PubMed Abstract: 
  

  Adhesive type 1 pili from uropathogenic Escherichia coli are filamentous protein complexes that are attached to the assembly platform FimD in the outer membrane. During pilus assembly, FimD binds complexes between the chaperone FimC and type 1 pilus subunits in the periplasm and mediates subunit translocation to the cell surface. Here we report nuclear magnetic resonance and X-ray protein structures of the N-terminal substrate recognition domain of FimD (FimD(N)) before and after binding of a chaperone-subunit complex. FimD(N) consists of a flexible N-terminal segment of 24 residues, a structured core with a novel fold, and a C-terminal hinge segment. In the ternary complex, residues 1-24 of FimD(N) specifically interact with both FimC and the subunit, acting as a sensor for loaded FimC molecules. Together with in vivo complementation studies, we show how this mechanism enables recognition and discrimination of different chaperone-subunit complexes by bacterial pilus assembly platforms.

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Organizational Affiliation: 
• Institut für Molekularbiologie und Biophysik, Eidgenössische Technische Hochschule Hönggerberg, Zürich, Switzerland.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 10.87 kDa 
• Atom Count: 756 
• Modeled Residue Count: 101 
• Deposited Residue Count: 101 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer membrane usher protein fimD	A	101	Escherichia coli	Mutation(s): 0  Gene Names: fimD
UniProt
Find proteins for P30130 (Escherichia coli (strain K12)) Explore P30130  Go to UniProtKB:  P30130

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-06-14 
Deposition Author(s): Nishiyama, M., Horst, R., Herrmann, T., Vetsch, M., Bettendorff, P., Ignatov, O., Grutter, M., Wuthrich, K., Glockshuber, R., Capitani, G.

Revision History  

• Version 1.0: 2005-06-14
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-02
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-05-22
  Changes: Data collection