1NMW

Solution structure of the PPIase domain of human Pin1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the least restraint violations,structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Analysis of the Mitotic Regulator hPin1 in Solution: INSIGHTS INTO DOMAIN ARCHITECTURE AND SUBSTRATE BINDING.

Bayer, E.Goettsch, S.Mueller, J.W.Griewel, B.Guiberman, E.Mayr, L.M.Bayer, P.

(2003) J.Biol.Chem. 278: 26183-26193

  • DOI: 10.1074/jbc.M300721200
  • Primary Citation of Related Structures:  1NMV

  • PubMed Abstract: 
  • The peptidyl-prolyl cis/trans isomerase hPin1 is a phosphorylation-dependent regulatory enzyme whose substrates are proteins involved in regulation of cell cycle, transcription, Alzheimer's disease, and cancer pathogenesis. We have determined the sol ...

    The peptidyl-prolyl cis/trans isomerase hPin1 is a phosphorylation-dependent regulatory enzyme whose substrates are proteins involved in regulation of cell cycle, transcription, Alzheimer's disease, and cancer pathogenesis. We have determined the solution structure of the two domain protein hPin1-(1-163) and its separately expressed PPIase domain (50-163) (hPin1PPIase) with an root mean square deviation of <0.5 A over backbone atoms using NMR. Domain organization of hPin1 differs from that observed in structures solved by x-ray crystallography. Whereas PPIase and WW domain are tightly packed onto each other and share a common binding interface in crystals, our NMR-based data revealed only weak interaction of both domains at their interface in solution. Interaction between the two domains of full-length hPin1 is absent when the protein is dissected into the catalytic and the WW domain. It indicates that the flexible linker, connecting both domains, promotes binding. By evaluation of NOESY spectra we can show that the alpha1/beta1 loop, which was proposed to undergo a large conformational rearrangement in the absence of sulfate and an Ala-Pro peptide, remained in the closed conformation under these conditions. Dissociation constants of 0.4 and 2.0 mm for sulfate and phosphate ions were measured at 12 degrees C by fluorescence spectroscopy. Binding of sulfate prevents hPin1 aggregation and changes surface charges across the active center and around the reactive and catalytically essential Cys113. In the absence of sulfate and/or reducing agent this residue seems to promote aggregation, as observed in hPin1 solutions in vitro.


    Related Citations: 
    • A human peptidyl-prolyl isomerase essential for regulation of mitosis
      Lu, K.P.,Hannes, S.D.,Hunter, T.
      (1996) Nature 380: 544
    • Structural basis for phosphoserine-proline recognition by group IV WW domains
      Verdecia, M.A.,Bowman, M.E.,Lu, K.P.,Hunter, T.,Noel, J.P.
      (2000) Nat.Struct.Mol.Biol. 7: 639
    • Structural and functional analysis of the mitotic rotamase Pin1 suggests substrate recognition is phosphorylation dependent
      Ranganathan, R.,Lu, K.P.,Hunter, T.,Noel, J.P.
      (1997) Cell 89: 875


    Organizational Affiliation

    Max-Planck-Institute for Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1
A
114Homo sapiensGene Names: PIN1
EC: 5.2.1.8
Find proteins for Q13526 (Homo sapiens)
Go to Gene View: PIN1
Go to UniProtKB:  Q13526
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the least restraint violations,structures with the lowest energy 
  • Olderado: 1NMW Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-15
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance