1FIV

STRUCTURE OF AN INHIBITOR COMPLEX OF PROTEINASE FROM FELINE IMMUNODEFICIENCY VIRUS

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.148 
  • R-Value Observed: 0.148 

wwPDB Validation   3D Report Full Report


This is version 1.6 of the entry. See complete history. 


Literature

Structure of an inhibitor complex of the proteinase from feline immunodeficiency virus.

Wlodawer, A., Gustchina, A., Reshetnikova, L., Lubkowski, J., Zdanov, A., Hui, K.Y., Angleton, E.L., Farmerie, W.G., Goodenow, M.M., Bhatt, D.

(1995) Nat Struct Biol 2: 480-488

  • DOI: https://doi.org/10.1038/nsb0695-480
  • Primary Citation of Related Structures:  
    1FIV

  • PubMed Abstract: 

    The crystal structure of a recombinant form of the proteinase encoded by the feline immunodeficiency virus (FIV PR) has been solved at 2 A resolution and refined to an R-factor of 0.148. The refined structure includes a peptidomimetic, statine-based inhibitor, LP-149, which is an even more potent inhibitor of HIV PR. Kinetic parameters were obtained for the cleavage of five substrates by FIV PR, and inhibition constants were measured for four inhibitors. The structure of FIV PR resembles other related retroviral enzymes although few inhibitors of HIV PR are capable of inhibiting FIV PR. The structure of FIV PR will enhance our knowledge of this class of enzymes, and will direct testing of new proteinase inhibitors in a feline animal model.

    • Organizational Affiliation: 

    Macromolecular Structure Laboratory, NCI-Frederick Cancer Research and Development Center, Maryland 21702, USA.


Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FIV PROTEASE113Feline immunodeficiency virusMutation(s): 0 
EC: 3.4.23.16
UniProt
Find proteins for P16088 (Feline immunodeficiency virus (isolate Petaluma))
Explore P16088 
Go to UniProtKB:  P16088
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP16088
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
FIV PROTEASE INHIBITOR ACE-ALN-VAL-STA-GLU-ALN-NH27N/AMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
ALN
Query on ALN
B
L-PEPTIDE LINKINGC13 H13 N O2ALA
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.148 
  • R-Value Observed: 0.148 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.65α = 90
b = 50.65β = 90
c = 74.5γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
PROLSQrefinement
X-PLORrefinement
XENGENdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-07-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2012-02-01
    Changes: Derived calculations
  • Version 1.4: 2012-12-12
    Changes: Other
  • Version 1.5: 2019-07-17
    Changes: Data collection, Derived calculations, Other, Refinement description
  • Version 1.6: 2019-08-14
    Changes: Data collection, Refinement description