1RTJ

MECHANISM OF INHIBITION OF HIV-1 REVERSE TRANSCRIPTASE BY NON-NUCLEOSIDE INHIBITORS

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

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This is version 1.2 of the entry. See complete history. 


Literature

Mechanism of inhibition of HIV-1 reverse transcriptase by non-nucleoside inhibitors.

Esnouf, R., Ren, J., Ross, C., Jones, Y., Stammers, D., Stuart, D.

(1995) Nat Struct Biol 2: 303-308

  • DOI: 10.1038/nsb0495-303
  • Primary Citation of Related Structures:  
    1RTJ

  • PubMed Abstract: 

    • The structure of unliganded HIV-1 reverse transcriptase has been determined at 2.35 A resolution and refined to an R-factor of 0.219 (for all data) with good stereochemistry. The unliganded structure was produced by soaking out a weak binding non-nuc ...

    The structure of unliganded HIV-1 reverse transcriptase has been determined at 2.35 A resolution and refined to an R-factor of 0.219 (for all data) with good stereochemistry. The unliganded structure was produced by soaking out a weak binding non-nucleoside inhibitor, HEPT, from pregrown crystals. Comparison with the structures of four different RT and non-nucleoside inhibitor complexes reveals that only minor domain rearrangements occur, but there is a significant repositioning of a three-stranded beta-sheet in the p66 subunit (containing the catalytic aspartic acid residues 110, 185 and 186) with respect to the rest of the polymerase site. This suggests that NNIs inhibit RT by locking the polymerase active site in an inactive conformation, reminiscent of the conformation observed in the inactive p51 subunit.

    Related Citations: 
    • High Resolution Structures of HIV-1 RT from Four RT-Inhibitor Complexes
      Ren, J., Esnouf, R., Garman, E., Somers, D., Kirby, C.R.I., Keeling, J., Darby, G., Jones, Y., Stuart, D.I., Stammers, D.
      (1995) Nat Struct Biol 2: 293
    • Crystals of HIV-1 Reverse Transcriptase Diffracting to 2.2 Angstrom Resolution
      Stammers, D.K., Somers, D., Ross, C.K., Kirby, I., Ray, P.H., Wilson, J.E., Norman, M., Ren, J.S., Esnouf, R.M., Garman, E.F., Jones, E.Y., Stuart, D.I.
      (1994) J Mol Biol 242: 586
    Organizational Affiliation: 

    Laboratory of Molecular Biophysics, Oxford, UK.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HIV-1 REVERSE TRANSCRIPTASEA560Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: HIV-1 POL
EC: 2.7.7.49 (PDB Primary Data), 3.4.23.16 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
Find proteins for P04585 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2))
Explore P04585 
Go to UniProtKB:  P04585
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HIV-1 REVERSE TRANSCRIPTASEB440Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: HIV-1 POL
EC: 2.7.7.49 (PDB Primary Data), 3.4.23.16 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
Find proteins for P04585 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2))
Explore P04585 
Go to UniProtKB:  P04585
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CSD
Query on CSD		AL-PEPTIDE LINKINGC3 H7 N O4 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 137.5α = 90
b = 109.4β = 90
c = 72.3γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-04-03
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance