4UCK

X-ray structure and activities of an essential Mononegavirales L- protein domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

X-Ray Structure and Activities of an Essential Mononegavirales L-Protein Domain.

Paesen, G.C.Collet, A.Sallamand, C.Debart, F.Vasseur, J.J.Canard, B.Decroly, E.Grimes, J.M.

(2015) Nat Commun 6: 8749

  • DOI: https://doi.org/10.1038/ncomms9749
  • Primary Citation of Related Structures:  
    4UCI, 4UCJ, 4UCK, 4UCL, 4UCY, 4UCZ, 4UD0

  • PubMed Abstract: 

    The L protein of mononegaviruses harbours all catalytic activities for genome replication and transcription. It contains six conserved domains (CR-I to -VI; Fig. 1a). CR-III has been linked to polymerase and polyadenylation activity, CR-V to mRNA capping and CR-VI to cap methylation. However, how these activities are choreographed is poorly understood. Here we present the 2.2-Å X-ray structure and activities of CR-VI+, a portion of human Metapneumovirus L consisting of CR-VI and the poorly conserved region at its C terminus, the +domain. The CR-VI domain has a methyltransferase fold, which besides the typical S-adenosylmethionine-binding site ((SAM)P) also contains a novel pocket ((NS)P) that can accommodate a nucleoside. CR-VI lacks an obvious cap-binding site, and the (SAM)P-adjoining site holding the nucleotides undergoing methylation ((SUB)P) is unusually narrow because of the overhanging +domain. CR-VI+ sequentially methylates caps at their 2'O and N7 positions, and also displays nucleotide triphosphatase activity.


  • Organizational Affiliation

    Division of Structural Biology, Wellcome Trust Centre for Human Genetics, Oxford OX3 7BN, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
RNA-DIRECTED RNA POLYMERASE L
A, B
415human metapneumovirusMutation(s): 1 
EC: 2.7.7.48 (UniProt), 2.1.1.375 (UniProt), 2.7.7.88 (UniProt)
UniProt
Find proteins for Q91L20 (human metapneumovirus)
Explore Q91L20 
Go to UniProtKB:  Q91L20
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ91L20
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.34α = 90
b = 84.35β = 90
c = 181.74γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
xia2data reduction
xia2data scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-11-18
    Type: Initial release
  • Version 1.1: 2019-04-24
    Changes: Data collection, Other, Source and taxonomy
  • Version 1.2: 2024-10-16
    Changes: Data collection, Database references, Derived calculations, Other, Structure summary