3RT3

Complex of influenza virus protein with host anti-viral factor

• PDB DOI: https://doi.org/10.2210/pdb3RT3/pdb

• Classification: ANTIVIRAL PROTEIN/VIRAL PROTEIN
• Organism(s): Homo sapiens, Influenza B virus (B/Lee/1940)
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2011-05-03 Released: 2011-07-13 
• Deposition Author(s): Wang, X.Q., Li, L.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 0.243 
• R-Value Work: 0.189 
• R-Value Observed: 0.192 

Literature

Crystal structure of human ISG15 in complex with influenza B virus NS1B

Li, L., Wang, X.Q.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Macromolecule Content

• Total Structure Weight: 30.31 kDa 
• Atom Count: 2,051 
• Modelled Residue Count: 247 
• Deposited Residue Count: 268 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ubiquitin-like protein ISG15	A [auth B]	159	Homo sapiens	Mutation(s): 1  Gene Names: ISG15, G1P2, UCRP
UniProt & NIH Common Fund Data Resources
Find proteins for P05161 (Homo sapiens) Explore P05161  Go to UniProtKB:  P05161
PHAROS:  P05161 GTEx:  ENSG00000187608

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Non-structural protein 1	B [auth C]	109	Influenza B virus (B/Lee/1940)	Mutation(s): 0  Gene Names: NS
UniProt
Find proteins for P03502 (Influenza B virus (strain B/Lee/1940)) Explore P03502  Go to UniProtKB:  P03502

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SIN	C [auth B], D [auth B]	SUCCINIC ACID C4 H6 O4 KDYFGRWQOYBRFD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 0.243 
• R-Value Work: 0.189 
• R-Value Observed: 0.192 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.674	α = 90
b = 39.147	β = 90.46
c = 74.704	γ = 90

Software Package:

Software Name	Purpose
MAR345dtb	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-07-13 
Deposition Author(s): Wang, X.Q., Li, L.

Revision History  

• Version 1.0: 2011-07-13
  Type: Initial release
  
• Version 1.1: 2017-08-16
  Changes: Structure summary
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description