Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 12.57 kDa 
• Atom Count: 948 
• Residue Count: 107 
• Unique protein chains: 1

1BKF

FK506 BINDING PROTEIN FKBP MUTANT R42K/H87V COMPLEX WITH IMMUNOSUPPRESSANT FK506

• DOI: 10.2210/pdb1BKF/pdb

• Classification: ISOMERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1995-10-18 Released: 1996-08-01 
• Deposition Author(s): Itoh, S., Decenzo, M.T., Livingston, D.J., Pearlman, D.A., Navia, M.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Work: 0.187 
• R-Value Observed: 0.187 

Literature

Conformation of Fk506 in X-Ray Structures of its Complexes with Human Recombinant Fkbp12 Mutants

Itoh, S., Decenzo, M.T., Livingston, D.J., Pearlman, D.A., Navia, M.A.

(1995) Bioorg Med Chem Lett 5: 1983

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FK506 BINDING PROTEIN	A	107	Homo sapiens	Mutation(s): 2  Gene Names: FKBP1A, FKBP1, FKBP12 EC: 5.2.1.8
Find proteins for P62942 (Homo sapiens) Explore P62942  Go to UniProtKB:  P62942
NIH Common Fund Data Resources
PHAROS:  P62942 GTEx:  ENSG00000088832

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FK5	A	8-DEETHYL-8-[BUT-3-ENYL]-ASCOMYCIN C44 H69 N O12 QJJXYPPXXYFBGM-LFZNUXCKSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
FK5	Ki:  2.0999999046325684   nM  Binding MOAD

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Work: 0.187 
• R-Value Observed: 0.187 
• Space Group: P 4₂ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.36	α = 90
b = 58.36	β = 90
c = 56.04	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XENGEN	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-10-18 
• Released Date: 1996-08-01 
Deposition Author(s): Itoh, S., Decenzo, M.T., Livingston, D.J., Pearlman, D.A., Navia, M.A.

Revision History 

• Version 1.0: 1996-08-01
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-03-21
  Changes: Data collection, Other