1CMV

HUMAN CYTOMEGALOVIRUS PROTEASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.27 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.241 
  • R-Value Observed: 0.241 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Three-dimensional structure of human cytomegalovirus protease.

Shieh, H.S.Kurumbail, R.G.Stevens, A.M.Stegeman, R.A.Sturman, E.J.Pak, J.Y.Wittwer, A.J.Palmier, M.O.Wiegand, R.C.Holwerda, B.C.Stallings, W.C.

(1996) Nature 383: 279-282

  • DOI: 10.1038/383279a0
  • Primary Citation of Related Structures:  
    1CMV

  • PubMed Abstract: 
  • Herpesviruses encode a serine protease that specifically cleaves assembly protein. This protease is critical for replication, and represents a new target for antiviral drug design. Here we report the three-dimensional structure of the protease from h ...

    Herpesviruses encode a serine protease that specifically cleaves assembly protein. This protease is critical for replication, and represents a new target for antiviral drug design. Here we report the three-dimensional structure of the protease from human cytomegalovirus (hCMV) at 2.27 angstroms resolution. The structure reveals a unique fold and new catalytic strategy for cleavage. The monomer fold of the enzyme, a seven-stranded beta-barrel encircled by a chain of helices that form the carboxy terminus of the molecule, is unrelated to those observed in classic serine proteases such as chymotrypsin and subtilisin. The serine nucleophile at position 132 is activated by two juxtaposed histidine residues at positions 63 and 157. Dimerization, which seems to be necessary for activity, is observed in the crystals. Correlations of the structure with the sequences of herpesvirus proteases suggest that dimerization may confer specificity and recognition in substrate binding.


    Related Citations: 
    • Activity of Two-Chain Recombinant Human Cytomegalovirus Protease
      Holwerda, B.C., Wittwer, A.J., Duffin, K.L., Smith, C., Toth, M.V., Carr, L.S., Wiegand, R.C., Bryant, M.L.
      (1994) J Biol Chem 269: 25911

    Organizational Affiliation

    Department of Medicinal and Structural Chemistry, Monsanto/Searle, Searle Discovery Research, St Louis, Missouri 63198, USA. hsshie@ccmail.monsanto.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HUMAN CYTOMEGALOVIRUS PROTEASEAB256Human betaherpesvirus 5Mutation(s): 0 
EC: 3.4.21 (PDB Primary Data), 3.4.21.97 (UniProt)
Find proteins for P16753 (Human cytomegalovirus (strain AD169))
Explore P16753 
Go to UniProtKB:  P16753
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.27 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.241 
  • R-Value Observed: 0.241 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.8α = 90
b = 76.8β = 90
c = 172.6γ = 90
Software Package:
Software NamePurpose
PHASESphasing
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-09-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance