4MH8

The crystal structure of the monomeric reverse transcriptase from moloney murine leukemia virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.237 

Starting Models: experimental
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This is version 1.2 of the entry. See complete history


Literature

The crystal structure of the monomeric reverse transcriptase from Moloney murine leukemia virus.

Das, D.Georgiadis, M.M.

(2004) Structure 12: 819-829

  • DOI: https://doi.org/10.1016/j.str.2004.02.032
  • Primary Citation of Related Structures:  
    4MH8

  • PubMed Abstract: 

    Reverse transcriptases (RTs) are multidomain enzymes of variable architecture that couple both RNA- and DNA-directed DNA polymerase activities with an RNase H activity specific for an RNA:DNA hybrid in order to replicate the single-stranded RNA genome of the retrovirus. Previous structural work has been reported for the heterodimeric HIV-1 and HIV-2 RTs. We now report the first crystal structure of the full-length Moloney murine leukemia virus (MMLV) RT at 3.0 A resolution. The structure reveals a clamp-shaped molecule resulting from the relative positions of the thumb, connection, and RNase H domains that is strikingly different from the HIV-1 RT and provides the first example of a monomeric reverse transcriptase. A comparative analysis with related DNA polymerases suggests a unique trajectory for the template-primer exiting the polymerase active site and provides insights regarding processive DNA synthesis by MMLV RT.


  • Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Reverse transcriptase/ribonuclease H p80652Moloney murine leukemia virus isolate ShinnickMutation(s): 1 
Gene Names: gag-pol
EC: 2.7.7.49 (PDB Primary Data), 2.7.7.7 (PDB Primary Data), 3.1.26.4 (PDB Primary Data)
UniProt
Find proteins for P03355 (Moloney murine leukemia virus (isolate Shinnick))
Explore P03355 
Go to UniProtKB:  P03355
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03355
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.237 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 242.332α = 90
b = 94.621β = 90
c = 52.408γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
CNSrefinement
MLPHAREphasing
PHASERphasing
PHENIXmodel building
AMoREphasing
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-16
    Type: Initial release
  • Version 1.1: 2019-07-17
    Changes: Data collection, Refinement description
  • Version 1.2: 2023-09-20
    Changes: Data collection, Database references, Refinement description