1TU2

THE COMPLEX OF NOSTOC CYTOCHROME F AND PLASTOCYANIN DETERMIN WITH PARAMAGNETIC NMR. BASED ON THE STRUCTURES OF CYTOCHROME F AND PLASTOCYANIN, 10 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 5000 
  • Conformers Submitted: 10 
  • Selection Criteria: REFER TO PUBLICATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the complex between plastocyanin and cytochrome f from the cyanobacterium Nostoc sp. PCC 7119 as determined by paramagnetic NMR. The balance between electrostatic and hydrophobic interactions within the transient complex determines the relative orientation of the two proteins.

Diaz-Moreno, I.Diaz-Quintana, A.De la Rosa, M.A.Ubbink, M.

(2005) J.Biol.Chem. 280: 18908-18915

  • DOI: 10.1074/jbc.M413298200

  • PubMed Abstract: 
  • The complex between cytochrome f and plastocyanin from the cyanobacterium Nostoc has been characterized by NMR spectroscopy. The binding constant is 16 mM(-1), and the lifetime of the complex is much less than 10 ms. Intermolecular pseudo-contact shi ...

    The complex between cytochrome f and plastocyanin from the cyanobacterium Nostoc has been characterized by NMR spectroscopy. The binding constant is 16 mM(-1), and the lifetime of the complex is much less than 10 ms. Intermolecular pseudo-contact shifts observed for the plastocyanin amide nuclei, caused by the heme iron, as well as the chemical-shift perturbation data were used as the sole experimental restraints to determine the orientation of plastocyanin relative to cytochrome f with a precision of 1.3 angstroms. The data show that the hydrophobic patch surrounding tyrosine 1 in cytochrome f docks the hydrophobic patch of plastocyanin. Charge complementarities are found between the rims of the respective recognition sites of cytochrome f and plastocyanin. Significant differences in the relative orientation of both proteins are found between this complex and those previously reported for plants and Phormidium, indicating that electrostatic and hydrophobic interactions are balanced differently in these complexes.


    Related Citations: 
    • Cloning and correct expression in Escherichia coli of the petE and petJ genes respectively encoding plastocyanin and cytochrome c6 from the cyanobacterium Anabaena sp. PCC 7119
      Molina-Heredia, F.P.,Hervas, M.,Navarro, J.A.,De la Rosa, M.A.
      (1998) BIOCHEM.BIOPHYS.RES.COMMUN. 243: 302
    • Plastocyanin from Nostoc sp. PCC 7119 Uses the Same Electrostatic and Hydrophobic Surface Areas for the Interaction with both Cytochrome f and Photosystem I
      Molina-Heredia, F.P.,Hervas, M.,Navarro, J.A.,De la Rosa, M.A.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla y Consejo Superior de Investigaciones Científicas, Avda. Américo Vespucio 49, 41092 Sevilla, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Plastocyanin
A
105Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)Mutation(s): 0 
Gene Names: petE
Find proteins for P46444 (Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576))
Go to UniProtKB:  P46444
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Apocytochrome f
B
254Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)Mutation(s): 0 
Gene Names: petA
Find proteins for Q93SW9 (Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576))
Go to UniProtKB:  Q93SW9
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

Download SDF File 
Download CCD File 
A
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
HEC
Query on HEC

Download SDF File 
Download CCD File 
B
HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 5000 
  • Conformers Submitted: 10 
  • Selection Criteria: REFER TO PUBLICATION 
  • Olderado: 1TU2 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance