1PIN

PIN1 PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FROM HOMO SAPIENS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

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: 875-886


  • PubMed Abstract: 
  • The human rotamase or peptidyl-prolyl cis-trans isomerase Pin1 is a conserved mitotic regulator essential for the G2/M transition of the eukaryotic cell cycle. We report the 1.35 A crystal structure of Pin1 complexed with an AlaPro dipeptide and the ...

    The human rotamase or peptidyl-prolyl cis-trans isomerase Pin1 is a conserved mitotic regulator essential for the G2/M transition of the eukaryotic cell cycle. We report the 1.35 A crystal structure of Pin1 complexed with an AlaPro dipeptide and the initial characterization of Pin1's functional properties. The crystallographic structure as well as pH titration studies and mutagenesis of an active site cysteine suggest a catalytic mechanism that includes general acid-base and covalent catalysis during peptide bond isomerization. Pin1 displays a preference for an acidic residue N-terminal to the isomerized proline bond due to interaction of this acidic side chain with a basic cluster. This raises the possibility of phosphorylation-mediated control of Pin1-substrate interactions in cell cycle regulation.


    Related Citations: 
    • A Human Peptidyl-Prolyl Isomerase Essential for Regulation of Mitosis
      Lu, K.P.,Hanes, S.D.,Hunter, T.
      (1996) Nature 380: 544


    Organizational Affiliation

    Structural Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PEPTIDYL-PROLYL CIS-TRANS ISOMERASE
A
163Homo 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 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1PG
Query on 1PG

Download SDF File 
Download CCD File 
A
2-(2-{2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHANOL
C11 H24 O6
SLNYBUIEAMRFSZ-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

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Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ALA
Query on ALA

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Download CCD File 
A
ALANINE
C3 H7 N O2
QNAYBMKLOCPYGJ-REOHCLBHSA-N
 Ligand Interaction
PRO
Query on PRO

Download SDF File 
Download CCD File 
A
PROLINE
C5 H9 N O2
ONIBWKKTOPOVIA-BYPYZUCNSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.223 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 49.000α = 90.00
b = 49.000β = 90.00
c = 137.800γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
X-PLORphasing
X-PLORrefinement
X-PLORmodel building
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-10-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2013-04-24
    Type: Other
  • Version 1.4: 2014-02-26
    Type: Other