1FXS

GDP-FUCOSE SYNTHETASE FROM ESCHERICHIA COLI COMPLEX WITH NADP

• PDB DOI: https://doi.org/10.2210/pdb1FXS/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 1998-09-01 Released: 1999-08-26 
• Deposition Author(s): Somers, W.S., Stahl, M.L., Sullivan, F.X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Observed: 0.163 

Literature

GDP-fucose synthetase from Escherichia coli: structure of a unique member of the short-chain dehydrogenase/reductase family that catalyzes two distinct reactions at the same active site.

Somers, W.S., Stahl, M.L., Sullivan, F.X.

(1998) Structure 6: 1601-1612

• PubMed: 9862812 
• DOI: https://doi.org/10.1016/s0969-2126(98)00157-9
• Primary Citation of Related Structures:  
  1BSV, 1FXS, 1GFS


• PubMed Abstract: 
  

  . In all species examined, GDP-fucose is synthesized from GDP-mannose in a three-step reaction catalyzed by two enzymes, GDP-mannose 4,6 dehydratase and a dual function 3, 5-epimerase-4-reductase named GDP-fucose synthetase. In this latter aspect fucose biosynthesis differs from that of other deoxy and dideoxy sugars, in which the epimerase and reductase activities are present as separate enzymes. Defects in GDP-fucose biosynthesis have been shown to affect nodulation in bacteria, stem development in plants, and are associated with the immune defect leukocyte adhesion deficiency type II in humans.

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Organizational Affiliation: 

Small Molecule Drug Discovery Genetics Institute, Inc. 87 Cambridgepark Drive, Cambridge, MA 02140, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 36.93 kDa 
• Atom Count: 2,629 
• Modelled Residue Count: 317 
• Deposited Residue Count: 321 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (GDP-FUCOSE SYNTHETASE)	A	321	Escherichia coli K-12	Mutation(s): 0  Gene Names: WCAG
UniProt
Find proteins for P32055 (Escherichia coli (strain K12)) Explore P32055  Go to UniProtKB:  P32055

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAP	B [auth A]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Observed: 0.163 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.2	α = 90
b = 104.2	β = 90
c = 75.1	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-08-26 
Deposition Author(s): Somers, W.S., Stahl, M.L., Sullivan, F.X.

Revision History  

• Version 1.0: 1999-08-26
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Source and taxonomy, Version format compliance
• Version 1.3: 2023-08-09
  Changes: Data collection, Database references, Derived calculations, Refinement description