2FUA | pdb_00002fua

L-FUCULOSE 1-PHOSPHATE ALDOLASE CRYSTAL FORM T WITH COBALT

• PDB DOI: https://doi.org/10.2210/pdb2FUA/pdb

• Classification: LYASE (ALDEHYDE)
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1996-02-14 Released: 1996-10-14 
• Deposition Author(s): Dreyer, M.K., Schulz, G.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 
  0.180 (Depositor), 0.181 (DCC) 
• R-Value Observed: 
  0.180 (Depositor) 

Literature

Refined high-resolution structure of the metal-ion dependent L-fuculose-1-phosphate aldolase (class II) from Escherichia coli.

Dreyer, M.K., Schulz, G.E.

(1996) Acta Crystallogr D Biol Crystallogr 52: 1082-1091

• PubMed: 15299567 
• DOI: https://doi.org/10.1107/S0907444996009146
• Primary Citation Related Structures: 
  1FUA, 2FUA


• PubMed Abstract: 
  

  The structure of the class II zinc-ion dependent L-fuculose-1-phosphate aldolase from Escherichia coli in its tetragonal crystal form has been established at 1.92 A resolution. The homotetrameric enzyme has a molecular mass of 4 x 24 kDa and follows C(4) symmetry. The structure model is exactly symmetrical, which contradicts an observed birefringence anomaly of the crystals. The four catalytic centers are located in deep clefts at the interfaces of adjacent subunits. The zinc ion is coordinated by three histidines and one glutamate in an almost tetrahedral arrangement. In contrast to numerous other catalytically competent zinc ions, there is no water molecule in the ligand sphere. Replacement of zinc by a cobalt ion caused only small structural changes. A search through the Protein Data Bank indicated that the chain fold is novel. Sequence homology searches revealed a significant similarity to the bacterial L-ribulose-5-phosphate 4-epimerase.

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Organizational Affiliation: 
• Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content 

• Total Structure Weight: 24.13 kDa 
• Atom Count: 1,761 
• Modeled Residue Count: 210 
• Deposited Residue Count: 215 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
L-FUCULOSE-1-PHOSPHATE ALDOLASE	A	215	Escherichia coli	Mutation(s): 0  EC: 4.1.2.17
UniProt
Find proteins for P0AB87 (Escherichia coli (strain K12)) Explore P0AB87  Go to UniProtKB:  P0AB87

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
BME	E [auth A]	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N
CO	B [auth A]	COBALT (II) ION Co XLJKHNWPARRRJB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work:  0.180 (Depositor), 0.181 (DCC) 
• R-Value Observed: 0.180 (Depositor) 

Space Group: P 4 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.7	α = 90
b = 93.7	β = 90
c = 42.8	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-10-14 
Deposition Author(s): Dreyer, M.K., Schulz, G.E.

Revision History  

• Version 1.0: 1996-10-14
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2011-11-16
  Changes: Atomic model
• Version 1.4: 2024-06-05
  Changes: Data collection, Database references, Derived calculations, Other