Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 12750.68 
• Atom Count: 904 
• Residue Count: 107 
• Unique protein chains: 1

1FKB

ATOMIC STRUCTURE OF THE RAPAMYCIN HUMAN IMMUNOPHILIN FKBP-12 COMPLEX

• DOI: 10.2210/pdb1FKB/pdb

• Classification: ISOMERASE
• Organism(s): Homo sapiens


• Deposited: 1992-07-02 Released: 1993-10-31 
• Deposition Author(s): Van Duyne, G.D., Standaert, R.F., Schreiber, S.L., Clardy, J.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.7 Å
• R-Value Work: 0.165 

Literature

Atomic Structure of the Rapamycin Human Immunophilin Fkbp-12 Complex

Van Duyne, G.D., Standaert, R.F., Schreiber, S.L., Clardy, J.

(1991) J.Am.Chem.Soc. 113: 7433

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
FK506 BINDING PROTEIN	A	107	Homo sapiens	Mutation(s): 0  Gene Names: FKBP1A (FKBP1, FKBP12) EC: 5.2.1.8
Find proteins for P62942 (Homo sapiens) Go to Gene View: FKBP1A Go to UniProtKB:  P62942

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
RAP	A	RAPAMYCIN IMMUNOSUPPRESSANT DRUG C51 H79 N O13 QFJCIRLUMZQUOT-HPLJOQBZSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
RAP	EC50: 30 nM (100) BINDINGDB
RAP	IC50: 0.4 - 1.1 nM (100) BINDINGDB
RAP	Ki: 0.2 - 1 nM (100) BINDINGDB
RAP	Kd: 0.2 nM BINDINGMOAD
RAP	Kd: 0.2 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.7 Å
• R-Value Work: 0.165 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 45.420	α = 90.00
b = 49.160	β = 90.00
c = 54.740	γ = 90.00

Software Package:

Software Name	Purpose
MERLOT	phasing
X-PLOR	refinement
X-PLOR	model building
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1992-07-02 
• Released Date: 1993-10-31 
• Deposition Author(s): Van Duyne, G.D., Standaert, R.F., Schreiber, S.L., Clardy, J.C.

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