Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 39.63 kDa 
• Atom Count: 2699 
• Residue Count: 319 
• Unique protein chains: 1

3FQQ

Crystal structure of a novel dimeric form of HCV NS5A domain I protein

• DOI: 10.2210/pdb3FQQ/pdb

• Classification: METAL BINDING PROTEIN
• Organism(s): Hepatitis C virus (isolate Con1)
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-01-07 Released: 2009-03-24 
• Deposition Author(s): Love, R.A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.255 
• R-Value Work: 0.222 
• R-Value Observed: 0.222 

Literature

Crystal structure of a novel dimeric form of NS5A domain I protein from hepatitis C virus

Love, R.A., Brodsky, O., Hickey, M.J., Wells, P.A., Cronin, C.N.

(2009) J Virol 83: 4395-4403

• PubMed: 19244328 
• DOI: 10.1128/JVI.02352-08
• Structures With Same Primary Citation


• PubMed Abstract: 
  

A new protein expression vector design utilizing an N-terminal six-histidine tag and tobacco etch virus protease cleavage site upstream of the hepatitis C virus NS5A sequence has resulted in a more straightforward purification method and improved yields of purified NS5A domain I protein. High-resolution diffracting crystals of NS5A domain I (amino acids 33 to 202) [NS5A(33-202)] were obtained by using detergent additive crystallization screens, leading to the structure of a homodimer which is organized differently from that published previously (T. L. Tellinghuisen, J. Marcotrigiano, and C. M. Rice, Nature 435:374-379, 2005) yet is consistent with a membrane association model for NS5A. The monomer-monomer interface of NS5A(33-202) features an extensive buried surface area involving the most-highly conserved face of each monomer. The two alternate structural forms of domain I now available may be indicative of the multiple roles emerging for NS5A in viral RNA replication and viral particle assembly.

---

Organizational Affiliation: 

Structural Biology Group, Pfizer Global Research and Development, La Jolla Laboratories, San Diego, California 92121, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Non-structural protein 5A	A, B	177	Hepatitis C virus (isolate Con1)	Mutation(s): 0  Gene Names: Nonstructural protein NS5A EC: 3.4.22 (UniProt), 3.4.21.98 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q9WMX2 (Hepatitis C virus genotype 1b (isolate Con1)) Go to UniProtKB:  Q9WMX2

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
0BD	A	3-methyl-1-(2-methylpropyl)butyl 4-O-beta-L-gulopyranosyl-beta-D-glucopyranoside C21 H40 O11 RCXNRCWFTSDLDY-RDEKNSNJSA-N
GOL	A	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.255 
• R-Value Work: 0.222 
• R-Value Observed: 0.222 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.106	α = 90
b = 57.106	β = 90
c = 197.365	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
CNS	refinement
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2009-01-07 
• Released Date: 2009-03-24 
Deposition Author(s): Love, R.A.

Revision History 

• Version 1.0: 2009-03-24
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.2: 2019-07-24
  Changes: Data collection, Refinement description