5BQK

CRYSTAL STRUCTURE OF C-TERMINAL DOMAIN OF ICP27 PROTEIN FROM HSV-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the C-Terminal Domain of the Multifunctional ICP27 Protein from Herpes Simplex Virus 1.

Patel, V.Dahlroth, S.L.Rajakannan, V.Ho, H.T.Cornvik, T.Nordlund, P.

(2015) J.Virol. 89: 8828-8839

  • DOI: 10.1128/JVI.00441-15

  • PubMed Abstract: 
  • Herpesviruses are nuclear-replicating viruses that have successfully evolved to evade the immune system of humans, establishing lifelong infections. ICP27 from herpes simplex virus is a multifunctional regulatory protein that is functionally conserve ...

    Herpesviruses are nuclear-replicating viruses that have successfully evolved to evade the immune system of humans, establishing lifelong infections. ICP27 from herpes simplex virus is a multifunctional regulatory protein that is functionally conserved in all known human herpesviruses. It has the potential to interact with an array of cellular proteins, as well as intronless viral RNAs. ICP27 plays an essential role in viral transcription, nuclear export of intronless RNAs, translation of viral transcripts, and virion host shutoff function. It has also been implicated in several signaling pathways and the prevention of apoptosis. Although much is known about its central role in viral replication and infection, very little is known about the structure and mechanistic properties of ICP27 and its homologs. We present the first crystal structure of ICP27 C-terminal domain at a resolution of 2.0 Å. The structure reveals the C-terminal half of ICP27 to have a novel fold consisting of α-helices and long loops, along with a unique CHCC-type of zinc-binding motif. The two termini of this domain extend from the central core and hint to possibilities of making interactions. ICP27 essential domain is capable of forming self-dimers as seen in the structure, which is confirmed by analytical ultracentrifugation study. Preliminary in vitro phosphorylation assays reveal that this domain may be regulated by cellular kinases.


    Organizational Affiliation

    Structural Biology and Biochemistry Division, Nanyang Technological University, Singapore.,Structural Biology and Biochemistry Division, Nanyang Technological University, Singapore Institute of Molecular and Cell Biology, A*STAR, Singapore Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden pnordlund@ntu.edu.sg.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ICP27
A, B, C
271Human herpesvirus 1 (strain 17)Mutation(s): 0 
Find proteins for P10238 (Human herpesvirus 1 (strain 17))
Go to UniProtKB:  P10238
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.217 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 156.983α = 90.00
b = 120.335β = 100.46
c = 79.037γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
SCALAdata scaling
SOLVEphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Nanyang Technological UniversitySingapore1
Swedish Research CouncilSweden1

Revision History 

  • Version 1.0: 2015-07-01
    Type: Initial release
  • Version 1.1: 2015-08-12
    Type: Database references