Biological Assembly 1  

 3D View: Structure | Ligand Interaction

Global Symmetry: Dihedral - D2  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 39.68 kDa 
• Atom Count: 2783 
• Residue Count: 363 
• Unique protein chains: 1

4ALD

HUMAN MUSCLE FRUCTOSE 1,6-BISPHOSPHATE ALDOLASE COMPLEXED WITH FRUCTOSE 1,6-BISPHOSPHATE

• DOI: 10.2210/pdb4ALD/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 1998-07-26 Released: 1999-03-02 
• Deposition Author(s): Dalby, A.R., Dauter, Z., Littlechild, J.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.304 
• R-Value Work: 0.202 

Literature

Crystal structure of human muscle aldolase complexed with fructose 1,6-bisphosphate: mechanistic implications.

Dalby, A., Dauter, Z., Littlechild, J.A.

(1999) Protein Sci 8: 291-297

• PubMed: 10048322 
• DOI: 10.1110/ps.8.2.291
• Primary Citation of Related Structures:  
  2ALD, 4ALD


• PubMed Abstract: 
  

Fructose 1,6-bisphosphate aldolase catalyzes the reversible cleavage of fructose 1,6-bisphosphate and fructose 1-phosphate to dihydroxyacetone phosphate and either glyceraldehyde 3-phosphate or glyceraldehyde, respectively. Catalysis involves the formation of a Schiff's base intermediate formed at the epsilon-amino group of Lys229. The existing apo-enzyme structure was refined using the crystallographic free-R-factor and maximum likelihood methods that have been shown to give improved structural results that are less subject to model bias. Crystals were also soaked with the natural substrate (fructose 1,6-bisphosphate), and the crystal structure of this complex has been determined to 2.8 A. The apo structure differs from the previous Brookhaven-deposited structure (1ald) in the flexible C-terminal region. This is also the region where the native and complex structures exhibit differences. The conformational changes between native and complex structure are not large, but the observed complex does not involve the full formation of the Schiff's base intermediate, and suggests a preliminary hydrogen-bonded Michaelis complex before the formation of the covalent complex.

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Related Citations: 

• Activity and Specificity of Human Aldolases
  Gamblin, S.J., Davies, G.J., Grimes, J.M., Jackson, R.M., Littlechild, J.A., Watson, H.C.
  (1991) J Mol Biol 219: 573

• The Crystal Structure of Human Muscle Aldolase at 3.0 A Resolution
  Gamblin, S.J., Cooper, B., Millar, J.R., Davies, G.J., Littlechild, J.A., Watson, H.C.
  (1990) FEBS Lett 262: 282

• Molecular Architecture of Rabbit Skeletal Muscle Aldolase at 2.7-A Resolution
  Sygusch, J., Beaudry, D., Allaire, M.
  (1987) Proc Natl Acad Sci U S A 84: 7846

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Organizational Affiliation: 

Department of Chemistry and Biological Sciences, Exeter University, United Kingdom.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FRUCTOSE-BISPHOSPHATE ALDOLASE	A	363	Homo sapiens	Mutation(s): 0  Gene Names: ALDOA, ALDA EC: 4.1.2.13
Find proteins for P04075 (Homo sapiens) Explore P04075  Go to UniProtKB:  P04075
NIH Common Fund Data Resources
PHAROS:  P04075 GTEx:  ENSG00000149925

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
2FP	A	1,6-FRUCTOSE DIPHOSPHATE (LINEAR FORM) C6 H14 O12 P2 XPYBSIWDXQFNMH-PYWDMBMJSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.304 
• R-Value Work: 0.202 
• Space Group: P 6₄ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.5	α = 90
b = 96.5	β = 90
c = 166.9	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-07-26 
• Released Date: 1999-03-02 
Deposition Author(s): Dalby, A.R., Dauter, Z., Littlechild, J.A.

Revision History 

• Version 1.0: 1999-03-02
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance