1FL1

KSHV PROTEASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Functional consequences of the Kaposi's sarcoma-associated herpesvirus protease structure: regulation of activity and dimerization by conserved structural elements.

Reiling, K.K.Pray, T.R.Craik, C.S.Stroud, R.M.

(2000) Biochemistry 39: 12796-12803


  • PubMed Abstract: 
  • The structure of Kaposi's sarcoma-associated herpesvirus protease (KSHV Pr), at 2.2 A resolution, reveals the active-site geometry and defines multiple possible target sites for drug design against a human cancer-producing virus. The catalytic triad ...

    The structure of Kaposi's sarcoma-associated herpesvirus protease (KSHV Pr), at 2.2 A resolution, reveals the active-site geometry and defines multiple possible target sites for drug design against a human cancer-producing virus. The catalytic triad of KSHV Pr, (Ser114, His46, and His157) and transition-state stabilization site are arranged as in other structurally characterized herpesviral proteases. The distal histidine-histidine hydrogen bond is solvent accessible, unlike the situation in other classes of serine proteases. As in all herpesviral proteases, the enzyme is active only as a weakly associated dimer (K(d) approximately 2 microM), and inactive as a monomer. Therefore, both the active site and dimer interface are potential targets for antiviral drug design. The dimer interface in KSHV Pr is compared with the interface of other herpesviral proteases. Two conserved arginines (Arg209), one from each monomer, are buried within the same region of the dimer interface. We propose that this conserved arginine may provide a destabilizing element contributing to the tuned micromolar dissociation of herpesviral protease dimers.


    Related Citations: 
    • Crystallography & NMR System: A new software suite for macromolecular structure determination
      Brunger, A.T.,Adams, P.D.,Clore, G.M.,Delano, W.L.,Gros, P.,Grosse-Kunstleve, R.,Jiang, J.-S.,Kuszewski, J.,Nilges, M.,Pannu, N.S.,Read, R.J.,Rice, L.M.,Simonson, T.,Warren, G.
      (1998) Acta Crystallogr.,Sect.D 54: 905


    Organizational Affiliation

    Departments of Biochemistry & Biophysics and Pharmaceutical Chemistry, and Graduate Group in Biophysics, University of California in San Francisco, San Francisco, California 94143, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEASE
A, B
230Human herpesvirus 8N/A
Find proteins for O36607 (Human herpesvirus 8)
Go to UniProtKB:  O36607
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
K
Query on K

Download SDF File 
Download CCD File 
B
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.225 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 53.580α = 90.00
b = 53.580β = 90.00
c = 323.060γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
AMoREphasing
MAR345data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-11-22
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description