4U4H | pdb_00004u4h

Crystal Structure of HSV-1 UL21 N-terminal Domain

• PDB DOI: https://doi.org/10.2210/pdb4U4H/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Human alphaherpesvirus 1 strain 17
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-07-23 Released: 2015-01-07 
• Deposition Author(s): Metrick, C.M., Heldwein, E.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 
  0.221 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.166 (Depositor), 0.170 (DCC) 
• R-Value Observed: 
  0.168 (Depositor) 

Literature

The Unusual Fold of Herpes Simplex Virus 1 UL21, a Multifunctional Tegument Protein.

Metrick, C.M., Chadha, P., Heldwein, E.E.

(2015) J Virol 89: 2979-2984

• PubMed: 25540382 
• DOI: https://doi.org/10.1128/JVI.03516-14
• Primary Citation of Related Structures:  
  4U4H


• PubMed Abstract: 
  

  UL21 is a conserved protein in the tegument of alphaherpesviruses and has multiple important albeit poorly understood functions in viral replication and pathogenesis. To provide a roadmap for exploration of the multiple roles of UL21, we determined the crystal structure of its conserved N-terminal domain from herpes simplex virus 1 to 2.0-Å resolution, which revealed a novel sail-like protein fold. Evolutionarily conserved surface patches highlight residues of potential importance for future targeting by mutagenesis.

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Organizational Affiliation: 
• Department of Molecular Biology and Microbiology and Graduate Program in Biochemistry, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts, USA.
Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA.
Department of Molecular Biology and Microbiology and Graduate Program in Biochemistry, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts, USA [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 23.18 kDa 
• Atom Count: 1,645 
• Modeled Residue Count: 198 
• Deposited Residue Count: 209 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tegument protein UL21	A	209	Human alphaherpesvirus 1 strain 17	Mutation(s): 0  Gene Names: UL21
UniProt
Find proteins for P10205 (Human herpesvirus 1 (strain 17)) Explore P10205  Go to UniProtKB:  P10205

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free:  0.221 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.166 (Depositor), 0.170 (DCC) 
• R-Value Observed: 0.168 (Depositor) 

Diffraction Data: https://doi.org/10.15785/SBGRID/141

Diffraction Data: https://doi.org/10.15785/SBGRID/140

Space Group: P 6₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 108.346	α = 90
b = 108.346	β = 90
c = 65.236	γ = 120

Software Package:

Software Name	Purpose
HKL-2000	data reduction
SHARP	phasing
PDB_EXTRACT	data extraction
PHENIX	refinement
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-01-07 
Deposition Author(s): Metrick, C.M., Heldwein, E.E.

Revision History  

• Version 1.0: 2015-01-07
  Type: Initial release
  
• Version 1.1: 2015-01-14
  Changes: Database references
• Version 1.2: 2015-02-18
  Changes: Database references
• Version 1.3: 2023-12-27
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy