1EA3

Influenza virus M1 protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.242 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Combined Results from Solution Studies on Intact Influenza Virus M1 Protein and from a New Crystal Form of its N-Terminal Domain Show that M1 is an Elongated Monomeric

Arzt, S.Baudin, F.Barge, A.Timmins, P.Burmeister, W.P.Ruigrok, R.W.

(2001) Virology 279: 439

  • DOI: 10.1006/viro.2000.0727

  • PubMed Abstract: 
  • The amino-terminal domain of influenza A virus matrix protein (residues 1-164) was crystallized at pH 7 into a new crystal form in space group P1. This packing of the protein implies that M1(1-164) was monomeric in solution when it crystallized. Othe ...

    The amino-terminal domain of influenza A virus matrix protein (residues 1-164) was crystallized at pH 7 into a new crystal form in space group P1. This packing of the protein implies that M1(1-164) was monomeric in solution when it crystallized. Otherwise, the structure of the M1 fragment in the pH 7 crystals was the same as the monomers in crystals formed at pH 4 where crystal packing resulted in dimer formation [B. Sha and M. Luo, 1997, Nature Struct. Biol. 4, 239-244]. Analysis of intact M1 protein, the N-terminal domain, and the remaining C-terminal fragment (residues 165-252) in solution also showed that the N-terminal domain was monomeric with the same dimensions as determined from the crystal structure. Intact M1 protein was also monomeric but with an elongated shape due to the presence of the C-terminal part. Circular dichroism showed that the C-terminal part of M1 contained helical structure. A model for soluble M1 is presented, based on the assumption that the C-terminal domain is spherical, in which the N- and C-terminal domains are connected by a linker sequence which is available for proteolytic attack.


    Organizational Affiliation

    European Synchrotron Radiation Facility, Forschungszentrum J├╝lich, Avenue des Martyrs, B.P. 220, Grenoble Cedex 09, F-38043, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MATRIX PROTEIN M1
A, B
164Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)Mutation(s): 0 
Gene Names: M
Find proteins for P03485 (Influenza A virus (strain A/Puerto Rico/8/1934 H1N1))
Go to UniProtKB:  P03485
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.242 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 36.860α = 77.10
b = 44.147β = 67.83
c = 47.692γ = 77.60
Software Package:
Software NamePurpose
AMoREphasing
SCALAdata scaling
CNSrefinement
MOSFLMdata reduction
EPMRphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2000-11-03 
  • Released Date: 2001-04-26 
  • Deposition Author(s): Arzt, S.

Revision History 

  • Version 1.0: 2001-04-26
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 2.0: 2018-10-24
    Type: Advisory, Atomic model, Data collection, Source and taxonomy