1MN8 | pdb_00001mn8

Structure of Moloney Murine Leukaemia Virus Matrix Protein

• PDB DOI: https://doi.org/10.2210/pdb1MN8/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Moloney murine leukemia virus
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2002-09-05 Released: 2003-01-14 
• Deposition Author(s): Riffel, N., Harlos, K., Iourin, O., Rao, Z., Kingsman, A., Stuart, D., Fry, E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.00 Å
• R-Value Free: 
  0.169 (Depositor), 0.207 (DCC) 
• R-Value Work: 
  0.208 (DCC) 

Literature

Atomic resolution structure of Moloney murine leukaemia virus matrix protein and its relationship to other retroviral matrix proteins.

Riffel, N., Harlos, K., Iourin, O., Rao, Z., Kingsman, A., Stuart, D., Fry, E.

(2002) Structure 10: 1627-1636

• PubMed: 12467570 
• DOI: https://doi.org/10.1016/s0969-2126(02)00896-1
• Primary Citation Related Structures: 
  1MN8


• PubMed Abstract: 
  

  Matrix proteins associated with the viral membrane are important in the formation of the viral particle and in virus maturation. The 1.0 A crystal structure of the ecotropic Gammaretrovirus Moloney murine leukemia virus (M-MuLV) matrix protein reveals the conserved topology of other retroviral matrix proteins, despite undetectable sequence similarity. The N terminus (normally myristylated) is exposed and adjacent to a basic surface patch, features likely to contribute to membrane binding. The four proteins in the asymmetric unit make varied contacts. The M-MuLV matrix structure is intermediate, between those of the lentiviruses and other retroviruses. The protein fold appears to be maintained, in part, by the conservation of side chain packing, which may provide a useful tool for searching for weak distant similarities in proteins.

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Organizational Affiliation: 
• Division of Structural Biology, The Henry Wellcome Building for Genomic Medicine, Oxford University, Roosevelt Drive, Oxford OX3 7BN, United Kingdom.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 45.79 kDa 
• Atom Count: 3,732 
• Modeled Residue Count: 379 
• Deposited Residue Count: 400 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Core protein p15	A, B, C, D	100	Moloney murine leukemia virus	Mutation(s): 0  Gene Names: p15 Membrane Entity: Yes
UniProt
Find proteins for P03332 (Moloney murine leukemia virus (isolate Shinnick)) Explore P03332  Go to UniProtKB:  P03332

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.00 Å
• R-Value Free:  0.169 (Depositor), 0.207 (DCC) 
• R-Value Work:  0.208 (DCC) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.8	α = 71.9
b = 49.5	β = 81.9
c = 50.8	γ = 80

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
SHELXL-97	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-01-14 
Deposition Author(s): Riffel, N., Harlos, K., Iourin, O., Rao, Z., Kingsman, A., Stuart, D., Fry, E.

Revision History  

• Version 1.0: 2003-01-14
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references