1YAT

IMPROVED CALCINEURIN INHIBITION BY YEAST FKBP12-DRUG COMPLEXES. CRYSTALLOGRAPHIC AND FUNCTIONAL ANALYSIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Improved calcineurin inhibition by yeast FKBP12-drug complexes. Crystallographic and functional analysis.

Rotonda, J.Burbaum, J.J.Chan, H.K.Marcy, A.I.Becker, J.W.

(1993) J.Biol.Chem. 268: 7607-7609


  • PubMed Abstract: 
  • The protein phosphatase calcineurin is the putative target for the immunosuppressive drug FK-506. The enzyme is inhibited by the complex of the drug with its intracellular receptor, the 12-kDa FK-506-binding protein (FKBP12), and the strength of inhi ...

    The protein phosphatase calcineurin is the putative target for the immunosuppressive drug FK-506. The enzyme is inhibited by the complex of the drug with its intracellular receptor, the 12-kDa FK-506-binding protein (FKBP12), and the strength of inhibition usually correlates strongly with immunosuppressive potency. We find, however, that the complex of yeast FKBP12 with L-685,818, a well characterized antagonist of FK-506 immunosuppression, is a potent inhibitor of calcineurin. The corresponding human complex does not inhibit the enzyme, and both human and yeast complexes with FK-506 do inhibit. To understand the structural basis of these findings, we have determined the three-dimensional structure of the complex of yeast FKBP12 with FK-506 by x-ray crystallography, and have found that the structure of the yeast complex is strikingly similar to its human homolog. These observations indicate that specific sequence elements in the yeast protein provide stronger binding interactions with a heterologous calcineurin than do the corresponding elements in the human protein, and suggest structural modifications that may improve the potency of this class of immunosuppressants.


    Related Citations: 
    • Fk-506-Binding Protein: Three-Dimensional Structure of the Complex with the Antagonist L-685,818
      Becker, J.W.,Rotonda, J.,Mckeever, B.M.,Chan, H.K.,Marcy, A.I.,Wiederrecht, G.,Hermes, J.D.,Springer, J.P.
      (1993) J.Biol.Chem. 268: 11335


    Organizational Affiliation

    Department of Biophysical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065-0900.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FK506 BINDING PROTEIN
A
113Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: FPR1 (FKB1, RBP1)
Find proteins for P20081 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: FPR1
Go to UniProtKB:  P20081
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FK5
Query on FK5

Download SDF File 
Download CCD File 
A
8-DEETHYL-8-[BUT-3-ENYL]-ASCOMYCIN
K506
C44 H69 N O12
QJJXYPPXXYFBGM-LFZNUXCKSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 79.681α = 90.00
b = 79.681β = 90.00
c = 54.063γ = 120.00
Software Package:
Software NamePurpose
PROLSQrefinement
CORELSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other