1CT6

SOLUTION STRUCTURE OF CGGIRGERG IN CONTACT WITH THE MONOCLONAL ANTIBODY MAB 4X11, NMR, 11 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 11 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of antibody-bound peptides and retro-inverso analogues. A transferred nuclear Overhauser effect spectroscopy and molecular dynamics approach.

Phan-Chan-Du, A.Petit, M.C.Guichard, G.Briand, J.P.Muller, S.Cung, M.T.

(2001) Biochemistry 40: 5720-5727

  • DOI: 10.1021/bi001151h
  • Primary Citation of Related Structures:  
    1CW8, 1CVQ, 1CWZ, 1CS9, 1CT6

  • PubMed Abstract: 
  • The three-dimensional structures of the two L-peptides, H-CGGIRGERA-OH, called L(A), and H-CGGIRGERG-OH, called L(G), corresponding or close to the IRGERA sequence present in the C-terminal region (residues 130-135) of histone H3, and their retro-inv ...

    The three-dimensional structures of the two L-peptides, H-CGGIRGERA-OH, called L(A), and H-CGGIRGERG-OH, called L(G), corresponding or close to the IRGERA sequence present in the C-terminal region (residues 130-135) of histone H3, and their retro-inverso analogues HO-mAreGriGGC-NH2, called RI(mA), and HO-mGreGriGGC-NH2, called RI(mG), have been studied by two-dimensional 1H NMR and molecular dynamics calculations in association with a monoclonal antibody generated against L(A). At 25 degrees C, the affinity constants of the monoclonal antibody with respect to RI(mA) and RI(mG) were 75- and 270-fold higher than those measured with the homologous L(A) and L(G) peptides, respectively. Due to the spontaneous epimerization of the mA malonic residue, RI(mA) gave rise to two sets of resonances. With regard to the NH amide region, one set was similar to that for RI(mG) while the second was similar to those for the parent L-peptides L(A) and L(G). The antibody-bound conformations of the two couples of L- and retro-inverso peptides have been analyzed using molecular modeling calculations based on the transferred NOE interproton distances. Folded structures appeared in both cases with a type II' beta-turn in the parent GGIR sequence and a type I' beta-turn in the retro-inverso reGr sequence.


    Organizational Affiliation

    Laboratoire de Chimie-Physique Macromoléculaire, UMR 7568 CNRS-INPL, Groupe ENSIC, 1 rue Grandville, B.P. 451, 54001 Nancy Cedex, France.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HISTONE H3 PEPTIDEA9N/AMutation(s): 0 
Find proteins for P68431 (Homo sapiens)
Explore P68431 
Go to UniProtKB:  P68431
NIH Common Fund Data Resources
PHAROS  P68431
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 11 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 1CT6 Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-09-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance