1HVU

HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 REVERSE TRANSCRIPTASE COMPLEXED WITH A 33-BASE NUCLEOTIDE RNA PSEUDOKNOT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.75 Å
  • R-Value Free: 0.413 
  • R-Value Work: 0.340 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of HIV-1 reverse transcriptase complexed with an RNA pseudoknot inhibitor.

Jaeger, J.Restle, T.Steitz, T.A.

(1998) EMBO J. 17: 4535-4542

  • DOI: 10.1093/emboj/17.15.4535

  • PubMed Abstract: 
  • Small RNA pseudoknots, selected to bind human immunodeficiency virus type 1 (HIV-1) reverse transcriptase tightly, are potent inhibitors of reverse transcriptase. The co-crystal structure of reverse transcriptase complexed with a 33 nucleotide RNA ps ...

    Small RNA pseudoknots, selected to bind human immunodeficiency virus type 1 (HIV-1) reverse transcriptase tightly, are potent inhibitors of reverse transcriptase. The co-crystal structure of reverse transcriptase complexed with a 33 nucleotide RNA pseudoknot has been determined by fitting the ligand into a high quality, 4-fold averaged 4.8 A resolution electron density map. The RNA is kinked between stems S1 and S2, thereby optimizing its contacts with subunits of the heterodimer. Its binding site extends along the cleft that lies between the polymerase and RNase H active sites, partially overlaps with that observed for duplex DNA and presumably overlaps some portion of the tRNA site. Stem S2 and loop L1 stabilize the 'closed' conformation of the polymerase through extensive electrostatic interactions with several basic residues in helix I of the p66 thumb and in the p66 fingers domain. Presumably, this RNA ligand inhibits reverse transcriptase by binding to a site that partly overlaps the primer-template binding site.


    Related Citations: 
    • Comparison of Three Different Crystal Forms Shows HIV-1 Reverse Transcriptase Displays an Internal Swivel Motion
      Jaeger, J.,Smerdon, S.J.,Wang, J.,Boisvert, D.C.,Steitz, T.A.
      (1994) Structure 2: 869


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520-8114, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (HIV-1 REVERSE TRANSCRIPTASE)
A, D, G, J
554Human immunodeficiency virus type 1 group M subtype BMutation(s): 0 
Gene Names: gag-pol
Find proteins for P03366 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P03366
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (HIV-1 REVERSE TRANSCRIPTASE)
B, E, H, K
423Human immunodeficiency virus type 1 group M subtype BMutation(s): 0 
Gene Names: gag-pol
Find proteins for P03366 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P03366
Entity ID: 1
MoleculeChainsLengthOrganism
RNA (33 NUCLEOTIDE RNA PSEUDOKNOT)C,F,I,L30N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.75 Å
  • R-Value Free: 0.413 
  • R-Value Work: 0.340 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 166.700α = 90.00
b = 169.200β = 104.50
c = 331.400γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
Omodel building
CCP4phasing
X-PLORrefinement
CCP4/Omodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-01-13
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance