2J7Q

Crystal structure of the ubiquitin-specific protease encoded by murine cytomegalovirus tegument protein M48 in complex with a ubquitin-based suicide substrate

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 

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Literature

Structure of a Herpesvirus-Encoded Cysteine Protease Reveals a Unique Class of Deubiquitinating Enzymes

Schlieker, C., Weihofen, W.A., Frijns, E., Kattenhorn, L.M., Gaudet, R., Ploegh, H.L.

(2007) Mol Cell 25: 677

  • DOI: 10.1016/j.molcel.2007.01.033
  • Primary Citation of Related Structures:  
    2J7Q

  • PubMed Abstract: 

    • All members of the herpesviridae contain within their large tegument protein a cysteine protease module that displays deubiquitinating activity. We report the crystal structure of the cysteine protease domain of murine cytomegalovirus M48 (M48(USP)) ...

    All members of the herpesviridae contain within their large tegument protein a cysteine protease module that displays deubiquitinating activity. We report the crystal structure of the cysteine protease domain of murine cytomegalovirus M48 (M48(USP)) in a complex with a ubiquitin (Ub)-based suicide substrate. M48(USP) adopts a papain-like fold, with the active-site cysteine forming a thioether linkage to the suicide substrate. The Ub core participates in an extensive hydrophobic interaction with an exposed beta hairpin loop of M48(USP). This Ub binding mode contributes to Ub specificity and is distinct from that observed in other deubiquitinating enzymes. Both the arrangement of active-site residues and the architecture of the interface with Ub lead us to classify this domain as the founding member of a previously unknown class of deubiquitinating enzymes.

    Organizational Affiliation: 

    Department of Biology, Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, 9 Cambridge Center, Cambridge, MA 02142, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MCMV TEGUMENT PROTEIN M48 ENCODED UBIQUITIN- SPECIFIC PROTEASE, M48USPA232Murid betaherpesvirus 1Mutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
UBIQUITINB, D75Homo sapiensMutation(s): 0 
Gene Names: UBC
Find proteins for P0CG48 (Homo sapiens)
Explore P0CG48 
Go to UniProtKB:  P0CG48
NIH Common Fund Data Resources
PHAROS  P0CG48
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
MCMV TEGUMENT PROTEIN M48 ENCODED UBIQUITIN- SPECIFIC PROTEASE, M48USPC232Murid betaherpesvirus 1Mutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PG4
Query on PG4
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B
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N		 Ligand Interaction
GVE
Query on GVE
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A, C
METHYL 4-AMINOBUTANOATE
C5 H11 N O2
KVQGGLZHHFGHPU-UHFFFAOYSA-N		 Ligand Interaction
GOL
Query on GOL
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C
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
MG
Query on MG
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A, B, D
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE		AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.907α = 73.37
b = 57.298β = 85.37
c = 67.279γ = 88.54
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
HKL2MAPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-03-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance