2IF4

Crystal structure of a multi-domain immunophilin from Arabidopsis thaliana

• PDB DOI: https://doi.org/10.2210/pdb2IF4/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2006-09-20 Released: 2006-10-31 
• Deposition Author(s): Granzin, J., Eckhoff, A., Weiergraeber, O.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 0.355 
• R-Value Work: 0.290 
• R-Value Observed: 0.296 

Literature

Crystal Structure of a Multi-domain Immunophilin from Arabidopsis thaliana: A Paradigm for Regulation of Plant ABC Transporters.

Granzin, J., Eckhoff, A., Weiergraber, O.H.

(2006) J Mol Biol 364: 799-809

• PubMed: 17045295 
• DOI: https://doi.org/10.1016/j.jmb.2006.09.052
• Primary Citation of Related Structures:  
  2IF4


• PubMed Abstract: 
  

  FKBP42 is a membrane-anchored immunophilin playing a critical role in morphogenesis and development of higher plants. We present the X-ray structure of the cytoplasmic portion of FKBP42 comprising both the FKBP-like domain and the TPR domain at 2.85 A resolution. The data shed light on the probable binding modes of key interaction partners, including HSP90 and two classes of ABC transporters. The resulting models provide a structural background for further investigation of the unique biological properties of this protein.

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Organizational Affiliation: 

Institute of Neurosciences and Biophysics, Molecular Biophysics, Research Centre Jülich, D-52425 Jülich, Germany.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 38.36 kDa 
• Atom Count: 2,072 
• Modelled Residue Count: 258 
• Deposited Residue Count: 338 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATFKBP42	A	338	Arabidopsis thaliana	Mutation(s): 0  Gene Names: FKBP42, TWD1, UCU2 EC: 5.2.1.8
UniProt
Find proteins for Q9LDC0 (Arabidopsis thaliana) Explore Q9LDC0  Go to UniProtKB:  Q9LDC0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 0.355 
• R-Value Work: 0.290 
• R-Value Observed: 0.296 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 86.142	α = 90
b = 117.873	β = 90
c = 40.112	γ = 90

Software Package:

Software Name	Purpose
MLPHARE	phasing
CNS	refinement
MOSFLM	data reduction
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-10-31 
Deposition Author(s): Granzin, J., Eckhoff, A., Weiergraeber, O.H.

Revision History  

• Version 1.0: 2006-10-31
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references