1WOD

CRYSTAL STRUCTURE OF MODA, A MOLYBDATE PROTEIN, COMPLEXED WITH TUNGSTATE

• PDB DOI: https://doi.org/10.2210/pdb1WOD/pdb

• Classification: TRANSPORT
• Organism(s): Escherichia coli
• Mutation(s): No 


• Deposited: 1997-06-17 Released: 1997-12-17 
• Deposition Author(s): Hu, Y., Rech, S., Gunsalus, R.P., Rees, D.C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 
  0.187 (Depositor) 
• R-Value Work: 
  0.163 (Depositor) 
• R-Value Observed: 
  0.163 (Depositor) 

Literature

Crystal structure of the molybdate binding protein ModA.

Hu, Y., Rech, S., Gunsalus, R.P., Rees, D.C.

(1997) Nat Struct Biol 4: 703-707

• PubMed: 9302996 
• DOI: https://doi.org/10.1038/nsb0997-703
• Primary Citation of Related Structures:  
  1AMF, 1WOD

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 25.2 kDa 
• Atom Count: 1,817 
• Modelled Residue Count: 231 
• Deposited Residue Count: 233 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MODA	A	233	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P37329 (Escherichia coli (strain K12)) Explore P37329  Go to UniProtKB:  P37329

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
WO4	B [auth A]	TUNGSTATE(VI)ION O4 W PBYZMCDFOULPGH-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free:  0.187 (Depositor) 
• R-Value Work:  0.163 (Depositor) 
• R-Value Observed: 0.163 (Depositor) 

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.59	α = 90
b = 82.59	β = 90
c = 81.52	γ = 120

Software Package:

Software Name	Purpose
SOLOMON	phasing
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-12-17 
Deposition Author(s): Hu, Y., Rech, S., Gunsalus, R.P., Rees, D.C.

Revision History  

• Version 1.0: 1997-12-17
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references, Derived calculations