1AQA

SOLUTION STRUCTURE OF REDUCED MICROSOMAL RAT CYTOCHROME B5, NMR, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 
  • Selection Criteria: MINIMIZED AVERAGE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure of reduced microsomal rat cytochrome b5.

Banci, L.Bertini, I.Ferroni, F.Rosato, A.

(1997) Eur.J.Biochem. 249: 270-279


  • PubMed Abstract: 
  • The solution structure of the major form of the reduced soluble fragment of rat microsomal cytochrome b5 has been solved through 1H-NMR spectroscopy. The protein contains 98 amino acids. Proton assignment was available for residues 1-94, except 90 [G ...

    The solution structure of the major form of the reduced soluble fragment of rat microsomal cytochrome b5 has been solved through 1H-NMR spectroscopy. The protein contains 98 amino acids. Proton assignment was available for residues 1-94, except 90 [Guiles, R. D., Basus, V. J., Kuntz, I. D. & Waskell, L. (1992) Biochemistry 31, 11,365-11,375] and has been confirmed. From 1722 NOEs, of which 1203 were found to be meaningful, a family of 40 energy-minimized structures has been obtained with average backbone rmsd (for residues 5-89) of 0.078 +/- 0.018 nm and average target function of 0.0045 nm2, no distance violations being larger than 0.029 nm. The structure has been compared with the X-ray structure of the oxidized rat mitochondrial isoenzyme and with that of the highly similar bovine microsomal isoenzyme in the oxidized form. The analysis of the elements of secondary structure is instructive in terms of their stability and of their occurrence in related structures, and of the capability of NMR and X-ray spectroscopy to observe them. Some detailed structural variations are noticed among the solved structures of the various isoenzymes and between solid and solution. The structural features in solution of the residues proposed to be involved in protein-protein recognition are found to be largely conserved with respect to the solid state.


    Organizational Affiliation

    Department of Chemistry, University of Florence, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME B5
A
94Rattus norvegicusGene Names: Cyb5a (Cyb5)
Find proteins for P00173 (Rattus norvegicus)
Go to UniProtKB:  P00173
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 
  • Selection Criteria: MINIMIZED AVERAGE 
Software Package:
Software NamePurpose
AMBERrefinement
DYANArefinement
DYANAmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-09-17
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance