1S9H

Crystal Structure of Adeno-associated virus Type 2 Rep40


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of the SF3 Helicase from Adeno-Associated Virus Type 2

James, J.A.Escalante, C.R.Yoon-Robarts, M.Edwards, T.A.Linden, R.M.Aggarwal, A.K.

(2003) Structure 11: 1025-1035


  • PubMed Abstract: 
  • We report here the crystal structure of an SF3 DNA helicase, Rep40, from adeno-associated virus 2 (AAV2). We show that AAV2 Rep40 is structurally more similar to the AAA(+) class of cellular proteins than to DNA helicases from other superfamilies. Th ...

    We report here the crystal structure of an SF3 DNA helicase, Rep40, from adeno-associated virus 2 (AAV2). We show that AAV2 Rep40 is structurally more similar to the AAA(+) class of cellular proteins than to DNA helicases from other superfamilies. The structure delineates the expected Walker A and B motifs, but also reveals an unexpected "arginine finger" that directly implies the requirement of Rep40 oligomerization for ATP hydrolysis and helicase activity. Further, the Rep40 AAA(+) domain is novel in that it is unimodular as opposed to bimodular. Altogether, the structural connection to AAA(+) proteins defines the general architecture of SF3 DNA helicases, a family that includes simian virus 40 (SV40) T antigen, as well as provides a conceptual framework for understanding the role of Rep proteins during AAV DNA replication, packaging, and site-specific integration.


    Organizational Affiliation

    Carl C. Icahn Center for Gene Therapy and Molecular Medicine, Mount Sinai School of Medicine, 1425 Madison Avenue, New York, NY 10029, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Rep 40 protein
A, B, C
268Adeno-associated virus 2Gene Names: Rep68
EC: 3.6.4.12
Find proteins for P03132 (Adeno-associated virus 2)
Go to UniProtKB:  P03132
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.227 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 126.294α = 90.00
b = 126.294β = 90.00
c = 97.894γ = 120.00
Software Package:
Software NamePurpose
CNSphasing
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-05-25
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance