3PHV

X-RAY ANALYSIS OF HIV-1 PROTEINASE AT 2.7 ANGSTROMS RESOLUTION CONFIRMS STRUCTURAL HOMOLOGY AMONG RETROVIRAL ENZYMES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

X-ray analysis of HIV-1 proteinase at 2.7 A resolution confirms structural homology among retroviral enzymes.

Lapatto, R.Blundell, T.Hemmings, A.Overington, J.Wilderspin, A.Wood, S.Merson, J.R.Whittle, P.J.Danley, D.E.Geoghegan, K.F.Hawrylik, S.J.Lee, S.E.Scheld, K.G.Hobart, P.M.

(1989) Nature 342: 299-302

  • DOI: 10.1038/342299a0

  • PubMed Abstract: 
  • Knowledge of the tertiary structure of the proteinase from human immunodeficiency virus HIV-1 is important to the design of inhibitors that might possess antiviral activity and thus be useful in the treatment of AIDS. The conserved Asp-Thr/Ser-Gly se ...

    Knowledge of the tertiary structure of the proteinase from human immunodeficiency virus HIV-1 is important to the design of inhibitors that might possess antiviral activity and thus be useful in the treatment of AIDS. The conserved Asp-Thr/Ser-Gly sequence in retroviral proteinases suggests that they exist as dimers similar to the ancestor proposed for the pepsins. Although this has been confirmed by X-ray analyses of Rous sarcoma virus and HIV-1 proteinases, these structures have overall folds that are similar to each other only where they are also similar to the pepsins. We now report a further X-ray analysis of a recombinant HIV-1 proteinase at 2.7 A resolution. The polypeptide chain adopts a fold in which the N- and C-terminal strands are organized together in a four-stranded beta-sheet. A helix precedes the single C-terminal strand, as in the Rous sarcoma virus proteinase and also in a synthetic HIV-1 proteinase, in which the cysteines have been replaced by alpha-aminobuytric acid. The structure reported here provides an explanation for the amino acid invariance amongst retroviral proteinases, but differs from that reported earlier in some residues that are candidates for substrate interactions at P3, and in the mode of intramolecular cleavage during processing of the polyprotein.


    Related Citations: 
    • Crystallization of the Aspartyl Protease from the Human Immunodeficiency Virus, HIV-1
      Mckeever, B.M.,Navia, M.A.,Fitzgerald, P.M.D.,Springer, J.P.,Leu, C.-T.,Heimbach, J.C.,Herber, W.K.,Sigal, I.S.,Darke, P.L.
      (1989) J.Biol.Chem. 264: 1919


    Organizational Affiliation

    Department of Crystallography, Birkbeck College, London, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
UNLIGANDED HIV-1 PROTEASE
A
99Human immunodeficiency virus type 1 group M subtype BGene Names: gag-pol
EC: 3.4.23.16, 3.1.-.-, 2.7.7.49, 2.7.7.7, 3.1.26.13, 2.7.7.-, 3.1.13.2
Find proteins for P04585 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P04585
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Work: 0.191 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 50.240α = 90.00
b = 50.240β = 90.00
c = 107.120γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1992-01-15
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2012-02-29
    Type: Database references
  • Version 1.4: 2017-11-29
    Type: Derived calculations, Other