1MSC

CRYSTAL STRUCTURE OF MS2 COAT PROTEIN DIMER

• PDB DOI: https://doi.org/10.2210/pdb1MSC/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Escherichia phage MS2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1995-04-28 Released: 1995-07-10 
• Deposition Author(s): Ni, C.-Z., Kodandapani, R., Ely, K.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.200 

Literature

Crystal structure of the MS2 coat protein dimer: implications for RNA binding and virus assembly.

Ni, C.Z., Syed, R., Kodandapani, R., Wickersham, J., Peabody, D.S., Ely, K.R.

(1995) Structure 3: 255-263

• PubMed: 7788292 
• DOI: https://doi.org/10.1016/S0969-2126(01)00156-3
• Primary Citation of Related Structures:  
  1MSC


• PubMed Abstract: 
  

  The coat protein in RNA bacteriophages binds and encapsidates viral RNA, and also acts as translational repressor of viral replicase by binding to an RNA hairpin in the RNA genome. Because of its dual function, the MS2 coat protein is an interesting candidate for structural studies of protein-RNA interactions and protein-protein interactions. In this study, unassembled MS2 coat protein dimers were selected to analyze repressor activity and virus assembly.

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Organizational Affiliation: 

Cancer Research Center, La Jolla Cancer Research Foundation, CA 92037, USA.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 13.71 kDa 
• Atom Count: 1,073 
• Modelled Residue Count: 129 
• Deposited Residue Count: 129 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BACTERIOPHAGE MS2 COAT PROTEIN	A	129	Escherichia phage MS2	Mutation(s): 0  Gene Names: MS2 COAT GENE
UniProt
Find proteins for P03612 (Escherichia phage MS2) Explore P03612  Go to UniProtKB:  P03612

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.200 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.2	α = 90
b = 55.7	β = 90
c = 28.4	γ = 90

Software Package:

Software Name	Purpose
PROLSQ	refinement
XENGEN	data reduction
NIELSEN	data reduction
XUONG)	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-07-10 
Deposition Author(s): Ni, C.-Z., Kodandapani, R., Ely, K.R.

Revision History  

• Version 1.0: 1995-07-10
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references, Other