4ICA

Crystal structure of a C-terminal truncated form of the matrix subunit (p15) of Feline Immunodeficiency Virus (FIV)

• PDB DOI: https://doi.org/10.2210/pdb4ICA/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Feline immunodeficiency virus (isolate Petaluma)
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2012-12-10 Released: 2013-07-10 
• Deposition Author(s): Serriere, J., Robert, X., Perez, M., Gouet, P., Guillon, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.279 
• R-Value Work: 0.212 
• R-Value Observed: 0.215 

Literature

Biophysical characterization and crystal structure of the Feline Immunodeficiency Virus p15 matrix protein.

Serriere, J., Robert, X., Perez, M., Gouet, P., Guillon, C.

(2013) Retrovirology 10: 64-64

• PubMed: 23800358 
• DOI: https://doi.org/10.1186/1742-4690-10-64
• Primary Citation of Related Structures:  
  4IC9, 4ICA


• PubMed Abstract: 
  

  Feline Immunodeficiency Virus (FIV) is a viral pathogen that infects domestic cats and wild felids. During the viral replication cycle, the FIV p15 matrix protein oligomerizes to form a closed matrix that underlies the lipidic envelope of the virion. Because of its crucial role in the early and late stages of viral morphogenesis, especially in viral assembly, FIV p15 is an interesting target in the development of potential new therapeutic strategies.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 30.19 kDa 
• Atom Count: 1,871 
• Modelled Residue Count: 238 
• Deposited Residue Count: 268 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Matrix protein p15	A, B	134	Feline immunodeficiency virus (isolate Petaluma)	Mutation(s): 0  Gene Names: FIV Gag, gag
UniProt
Find proteins for P16087 (Feline immunodeficiency virus (isolate Petaluma)) Explore P16087  Go to UniProtKB:  P16087

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
7PE	C [auth A], D [auth B]	2-(2-(2-(2-(2-(2-ETHOXYETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHANOL C14 H30 O7 UKXKPKBTMYNOFS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.279 
• R-Value Work: 0.212 
• R-Value Observed: 0.215 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 28.48	α = 90
b = 71.3	β = 99.63
c = 57.06	γ = 90

Software Package:

Software Name	Purpose
MxCuBE	data collection
MrBUMP	phasing
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-07-10 
Deposition Author(s): Serriere, J., Robert, X., Perez, M., Gouet, P., Guillon, C.

Revision History  

• Version 1.0: 2013-07-10
  Type: Initial release
  
• Version 1.1: 2024-02-28
  Changes: Data collection, Database references, Derived calculations
• Version 1.2: 2024-04-03
  Changes: Refinement description