Biological Assembly 1  

 3D View: Structure

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - AB 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 33898.27 
• Atom Count: 2310 
• Residue Count: 297 
• Unique protein chains: 2

1F2T

Crystal Structure of ATP-Free RAD50 ABC-ATPase

• DOI: 10.2210/pdb1F2T/pdb

• Classification: REPLICATION
• Organism(s): Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)
• Expression System: Escherichia coli


• Deposited: 2000-05-29 Released: 2000-08-02 
• Deposition Author(s): Hopfner, K.P., Karcher, A., Shin, D.S., Craig, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.6 Å
• R-Value Free: 0.231 
• R-Value Work: 0.187 

Literature

Structural biology of Rad50 ATPase: ATP-driven conformational control in DNA double-strand break repair and the ABC-ATPase superfamily.

Hopfner, K.P., Karcher, A., Shin, D.S., Craig, L., Arthur, L.M., Carney, J.P., Tainer, J.A.

(2000) Cell 101: 789-800

• PubMed: 10892749 
• Primary Citation of Related Structures:  
  1F2U


• PubMed Abstract: 
  

To clarify the key role of Rad50 in DNA double-strand break repair (DSBR), we biochemically and structurally characterized ATP-bound and ATP-free Rad50 catalytic domain (Rad50cd) from Pyrococcus furiosus. Rad50cd displays ATPase activity plus ATP-controlled dimerization and DNA binding activities. Rad50cd crystal structures identify probable protein and DNA interfaces and reveal an ABC-ATPase fold, linking Rad50 molecular mechanisms to ABC transporters, including P glycoprotein and cystic fibrosis transmembrane conductance regulator. Binding of ATP gamma-phosphates to conserved signature motifs in two opposing Rad50cd molecules promotes dimerization that likely couples ATP hydrolysis to dimer dissociation and DNA release. These results, validated by mutations, suggest unified molecular mechanisms for ATP-driven cooperativity and allosteric control of ABC-ATPases in DSBR, membrane transport, and chromosome condensation by SMC proteins.

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Organizational Affiliation: 

Department of Molecular Biology and Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
RAD50 ABC-ATPASE	A	149	Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)	Mutation(s): 0  Gene Names: rad50
Find proteins for P58301 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)) Go to UniProtKB:  P58301

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
RAD50 ABC-ATPASE	B	148	Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)	Mutation(s): 0  Gene Names: rad50
Find proteins for P58301 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)) Go to UniProtKB:  P58301

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.6 Å
• R-Value Free: 0.231 
• R-Value Work: 0.187 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 66.570	α = 90.00
b = 67.080	β = 90.00
c = 70.060	γ = 90.00

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-05-29 
• Released Date: 2000-08-02 
• Deposition Author(s): Hopfner, K.P., Karcher, A., Shin, D.S., Craig, L.

Revision History 

• Version 1.0: 2000-08-02
  Type: Initial release
• Version 1.1: 2007-10-21
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Derived calculations, Version format compliance