1A8J

IMMUNOGLOBULIN LAMBDA LIGHT CHAIN DIMER (MCG) COMPLEX WITH ASPARTAME


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.380 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 

wwPDB Validation 3D Report Full Report



Literature

Treatment of osteoarthritis with aspartame.

Edmundson, A.B.Manion, C.V.

(1998) Clin Pharmacol Ther 63: 580-593

  • DOI: 10.1016/S0009-9236(98)90109-6
  • Primary Citation of Related Structures:  
    1A8J

  • PubMed Abstract: 
  • The binding of sweet-tasting compounds in a human (Mcg) Bence-Jones dimer has been characterized by x-ray crystallography. Aspartame binding in this immunoglobulin fragment is remarkable. Unexpected pain relief noted by A.B.E., a crystallographer wit ...

    The binding of sweet-tasting compounds in a human (Mcg) Bence-Jones dimer has been characterized by x-ray crystallography. Aspartame binding in this immunoglobulin fragment is remarkable. Unexpected pain relief noted by A.B.E., a crystallographer with diagnosed osteoarthritis, suggested that the accommodation of aspartame in the active site of the dimer may represent surrogate binding by other proteins, with analgesia as the outcome.


    Related Citations: 
    • Three-Dimensional Structure of a Light Chain Dimer Crystallized in Water. Conformational Flexibility of a Molecule in Two Crystal Forms
      Ely, K.R., Herron, J.N., Harker, M., Edmundson, A.B.
      (1989) J Mol Biol 210: 601

    Organizational Affiliation

    Oklahoma Medical Research Foundation, Oklahoma City 73104, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
IMMUNOGLOBULIN LAMBDA LIGHT CHAIN DIMER (MCG)HL216Homo sapiensMutation(s): 0 
Gene Names: IGLV2-8
Find proteins for P01709 (Homo sapiens)
Explore P01709 
Go to UniProtKB:  P01709
NIH Common Fund Data Resources
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PME
Query on PME

Download CCD File 
H, L
N-L-ALPHA-ASPARTYL L-PHENYLALANINE 1-METHYL ESTER
C14 H18 N2 O5
IAOZJIPTCAWIRG-QWRGUYRKSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
H,LL-PEPTIDE LINKINGC5 H7 N O3GLN
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.380 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.3α = 90
b = 72.3β = 90
c = 185.9γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-06-17
    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: 2018-04-04
    Changes: Data collection, Other
  • Version 2.0: 2019-12-25
    Changes: Database references, Derived calculations, Polymer sequence