Macromolecule Content

• Total Structure Weight: 906.02 
• Atom Count: 62 
• Residue Count: 9 
• Unique protein chains: 1

1CT6

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

• DOI: 10.2210/pdb1CT6/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Homo sapiens


• Deposited: 1999-08-19 Released: 1999-09-02 
• Deposition Author(s): Phan Chan Du, A., Petit, M.C., Guichard, G., Briand, J.P., Muller, S., Cung, M.T.

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Experimental Data Snapshot

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

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

• PubMed: 11341837 
• Primary Citation of Related Structures:  
  1CWZ, 1CW8, 1CVQ, 1CS9


• 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-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.

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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
Molecule	Chains	Sequence Length	Organism	Details
HISTONE H3 PEPTIDE	A	9	Homo sapiens	Mutation(s): 0  Gene Names: HIST1H3A, HIST1H3B, HIST1H3C, HIST1H3D, HIST1H3E, HIST1H3F, HIST1H3G, HIST1H3H, HIST1H3I, HIST1H3J (H3FA, H3FL, H3FC, H3FB, H3FD, H3FI, H3FH, H3FK, H3FF, H3FJ)
Find proteins for P68431 (Homo sapiens) Go to Gene View: HIST1H3A HIST1H3B HIST1H3C HIST1H3D HIST1H3E HIST1H3F HIST1H3G HIST1H3H HIST1H3I HIST1H3J Go to UniProtKB:  P68431

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

Entry History 

Deposition Data

• Deposited Date: 1999-08-19 
• Released Date: 1999-09-02 
• Deposition Author(s): Phan Chan Du, A., Petit, M.C., Guichard, G., Briand, J.P., Muller, S., Cung, M.T.

Revision History 

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