1A8J

IMMUNOGLOBULIN LAMBDA LIGHT CHAIN DIMER (MCG) COMPLEX WITH ASPARTAME


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.380 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
IMMUNOGLOBULIN LAMBDA LIGHT CHAIN DIMER (MCG)
L, H
216Homo sapiensMutation(s): 0 
Gene Names: IGLV2-8
Find proteins for P01709 (Homo sapiens)
Go to UniProtKB:  P01709
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PME
Query on PME

Download SDF File 
Download CCD File 
H, L
N-L-ALPHA-ASPARTYL L-PHENYLALANINE 1-METHYL ESTER
ASPARTAME
C14 H18 N2 O5
IAOZJIPTCAWIRG-QWRGUYRKSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
H, L
L-PEPTIDE LINKINGC5 H7 N O3GLU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.380 
  • R-Value Work: 0.220 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 72.300α = 90.00
b = 72.300β = 90.00
c = 185.900γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-06-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-04-04
    Type: Data collection, Other