5NOH

HRSV M2-1 core domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.172 

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This is version 1.2 of the entry. See complete history


Literature

Structure and stability of the Human respiratory syncytial virus M2-1RNA-binding core domain reveals a compact and cooperative folding unit.

Molina, I.G.Josts, I.Almeida Hernandez, Y.Esperante, S.Salgueiro, M.Garcia Alai, M.M.de Prat-Gay, G.Tidow, H.

(2018) Acta Crystallogr F Struct Biol Commun 74: 23-30

  • DOI: 10.1107/S2053230X17017381
  • Primary Citation of Related Structures:  
    5NKX, 5NOH

  • PubMed Abstract: 
  • Human syncytial respiratory virus is a nonsegmented negative-strand RNA virus with serious implications for respiratory disease in infants, and has recently been reclassified into a new family, Pneumoviridae. One of the main reasons for this classification is the unique presence of a transcriptional antiterminator, called M 2-1 ...

    Human syncytial respiratory virus is a nonsegmented negative-strand RNA virus with serious implications for respiratory disease in infants, and has recently been reclassified into a new family, Pneumoviridae. One of the main reasons for this classification is the unique presence of a transcriptional antiterminator, called M 2-1 . The puzzling mechanism of action of M 2-1 , which is a rarity among antiterminators in viruses and is part of the RNA polymerase complex, relies on dissecting the structure and function of this multidomain tetramer. The RNA-binding activity is located in a monomeric globular `core' domain, a high-resolution crystal structure of which is now presented. The structure reveals a compact domain which is superimposable on the full-length M 2-1 tetramer, with additional electron density for the C-terminal tail that was not observed in the previous models. Moreover, its folding stability was determined through chemical denaturation, which shows that the secondary and tertiary structure unfold concomitantly, which is indicative of a two-state equilibrium. These results constitute a further step in the understanding of this unique RNA-binding domain, for which there is no sequence or structural counterpart outside this virus family, in addition to its implications in transcription regulation and its likeliness as an antiviral target.


    Organizational Affiliation

    The Hamburg Centre for Ultrafast Imaging and Department of Chemistry, Institute for Biochemistry and Molecular Biology, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transcription elongation factor M2-1 AB103Human orthopneumovirusMutation(s): 0 
Gene Names: M2DZ88_50545gpM2
Find proteins for P04545 (Human respiratory syncytial virus A (strain A2))
Explore P04545 
Go to UniProtKB:  P04545
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.172 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.954α = 90
b = 69.241β = 90.05
c = 46.604γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata scaling
Cootmodel building
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Germany--

Revision History  (Full details and data files)

  • Version 1.0: 2018-01-03
    Type: Initial release
  • Version 1.1: 2018-04-18
    Changes: Data collection, Database references
  • Version 1.2: 2019-10-16
    Changes: Data collection