1PBZ

DE NOVO DESIGNED PEPTIDE-METALLOPORPHYRIN COMPLEX, SOLUTION STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 14 
  • Selection Criteria: NO RESTRAINT VIOLATIONS GREATER THAN 0.3 ANGSTROMS 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

De novo designed cyclic-peptide heme complexes

Rosenblatt, M.M.Wang, J.Suslick, K.S.

(2003) Proc.Natl.Acad.Sci.USA 100: 13140-13145

  • DOI: 10.1073/pnas.2231273100

  • PubMed Abstract: 
  • The structural characterization of de novo designed metalloproteins together with determination of chemical reactivity can provide a detailed understanding of the relationship between protein structure and functional properties. Toward this goal, we ...

    The structural characterization of de novo designed metalloproteins together with determination of chemical reactivity can provide a detailed understanding of the relationship between protein structure and functional properties. Toward this goal, we have prepared a series of cyclic peptides that bind to water-soluble metalloporphyrins (FeIII and CoIII). Neutral and positively charged histidine-containing peptides bind with a high affinity, whereas anionic peptides bind only weakly to the negatively charged metalloporphyrin. Additionally, it was found that the peptide becomes helical only in the presence of the metalloporphyrin. CD experiments confirm that the metalloporphyrin binds specific cyclic peptides with high affinity and with isodichroic behavior. Thermal unfolding experiments show that the complex has "native-like" properties. Finally, NMR spectroscopy produced well dispersed spectra and experimental restraints that provide a high-resolution solution structure of the complexed peptide.


    Organizational Affiliation

    Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
De novo designed cyclic peptide
A, B
19N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PC3
Query on PC3

Download SDF File 
Download CCD File 
A
COPROPORPHYRIN I CONTAINING CO(III)
C36 H36 Co N4 O8
YMJSUHOSFAHJRH-MXOXSBADSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
NH2
Query on NH2
A, B
NON-POLYMERH2 N

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ACE
Query on ACE
A, B
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 14 
  • Selection Criteria: NO RESTRAINT VIOLATIONS GREATER THAN 0.3 ANGSTROMS 
  • Olderado: 1PBZ Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-12-09
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance