Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.38 kDa 
• Atom Count: 1629 
• Modelled Residue Count: 217 
• Deposited Residue Count: 217 
• Unique protein chains: 1

1IEZ

Solution Structure of 3,4-Dihydroxy-2-Butanone 4-Phosphate Synthase of Riboflavin Biosynthesis

• PDB DOI: 10.2210/pdb1IEZ/pdb

• Classification: ISOMERASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-04-11 Released: 2001-11-07 
• Deposition Author(s): Kelly, M.J.S., Ball, L.J., Kuhne, R., Bacher, A., Oschkinat, H.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: structures with the least restraint violations,structures with the lowest energy 

Literature

The NMR structure of the 47-kDa dimeric enzyme 3,4-dihydroxy-2-butanone-4-phosphate synthase and ligand binding studies reveal the location of the active site.

Kelly, M.J., Ball, L.J., Krieger, C., Yu, Y., Fischer, M., Schiffmann, S., Schmieder, P., Kuhne, R., Bermel, W., Bacher, A., Richter, G., Oschkinat, H.

(2001) Proc Natl Acad Sci U S A 98: 13025-13030

• PubMed: 11687623 
• DOI: 10.1073/pnas.231323598
• Primary Citation of Related Structures:  
  1IEZ


• PubMed Abstract: 
  

Recent developments in NMR have extended the size range of proteins amenable to structural and functional characterization to include many larger proteins involved in important cellular processes. By applying a combination of residue-specific isotope labeling and protein deuteration strategies tailored to yield specific information, we were able to determine the solution structure and study structure-activity relationships of 3,4-dihydroxy-2-butanone-4-phosphate synthase, a 47-kDa enzyme from the Escherichia coli riboflavin biosynthesis pathway and an attractive target for novel antibiotics. Our investigations of the enzyme's ligand binding by NMR and site-directed mutagenesis yields a conclusive picture of the location and identity of residues directly involved in substrate binding and catalysis. Our studies illustrate the power of state-of-the-art NMR techniques for the structural characterization and investigation of ligand binding in protein complexes approaching the 50-kDa range in solution.

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Organizational Affiliation: 

Research Institute for Molecular Pharmacology, Robert-Rössle-Strasse 10, D-13125 Berlin, Germany. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3,4-Dihydroxy-2-Butanone 4-Phosphate Synthase	A	217	Escherichia coli K-12	Mutation(s): 0  Gene Names: ribB, htrP, b3041, JW3009 EC: 5.4.99 (PDB Primary Data), 4.1.99.12 (UniProt)
UniProt
Find proteins for P0A7J0 (Escherichia coli (strain K12)) Explore P0A7J0  Go to UniProtKB:  P0A7J0

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: structures with the least restraint violations,structures with the lowest energy 
• OLDERADO: 1IEZ Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-04-11 
• Released Date: 2001-11-07 
Deposition Author(s): Kelly, M.J.S., Ball, L.J., Kuhne, R., Bacher, A., Oschkinat, H.

Revision History  

• Version 1.0: 2001-11-07
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance