6UEN | pdb_00006uen

Cryo-EM structure of the respiratory syncytial virus RNA polymerase

• PDB DOI: https://doi.org/10.2210/pdb6UEN/pdb
• EM Map EMD-20754: EMDB EMDataResource

• Classification: VIRAL PROTEIN/Transferase
• Organism(s): human respiratory syncytial virus
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2019-09-22 Released: 2020-01-22 
• Deposition Author(s): Cao, D., Gao, Y., Liang, B.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.67 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structure of the respiratory syncytial virus RNA polymerase.

Cao, D., Gao, Y., Roesler, C., Rice, S., D'Cunha, P., Zhuang, L., Slack, J., Domke, M., Antonova, A., Romanelli, S., Keating, S., Forero, G., Juneja, P., Liang, B.

(2020) Nat Commun 11: 368-368

• PubMed: 31953395 
• DOI: https://doi.org/10.1038/s41467-019-14246-3
• Primary Citation Related Structures: 
  6UEN


• PubMed Abstract: 
  

  The respiratory syncytial virus (RSV) RNA polymerase, constituted of a 250 kDa large (L) protein and tetrameric phosphoprotein (P), catalyzes three distinct enzymatic activities - nucleotide polymerization, cap addition, and cap methylation. How RSV L and P coordinate these activities is poorly understood. Here, we present a 3.67 Å cryo-EM structure of the RSV polymerase (L:P) complex. The structure reveals that the RNA dependent RNA polymerase (RdRp) and capping (Cap) domains of L interact with the oligomerization domain (P _OD ) and C-terminal domain (P _CTD ) of a tetramer of P. The density of the methyltransferase (MT) domain of L and the N-terminal domain of P (P _NTD ) is missing. Further analysis and comparison with other RNA polymerases at different stages suggest the structure we obtained is likely to be at an elongation-compatible stage. Together, these data provide enriched insights into the interrelationship, the inhibitors, and the evolutionary implications of the RSV polymerase.

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Organizational Affiliation: 
• Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, 30322, USA.
Robert P. Apkarian Integrated Electron Microscopy Core, Emory University School of Medicine, Atlanta, GA, 30322, USA.
Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, 30322, USA. [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A2B1C1D1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 5-mer - A1B1C1D1E1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 282.25 kDa 
• Atom Count: 13,705 
• Modeled Residue Count: 1,696 
• Deposited Residue Count: 2,464 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RNA-directed RNA polymerase L	A	1,500	human respiratory syncytial virus	Mutation(s): 0  Gene Names: L, MZ07_64039gpL, MZ07_64040gpL EC: 2.7.7.48 (PDB Primary Data), 2.1.1.56 (PDB Primary Data), 2.7.7 (PDB Primary Data), 2.7.7.88 (PDB Primary Data), 3.6.1 (UniProt)
UniProt
Find proteins for P28887 (Human respiratory syncytial virus A (strain A2)) Explore P28887  Go to UniProtKB:  P28887

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
the phosphoprotein (P) of human respiratory syncytial virus	B, C, D, E	241	human respiratory syncytial virus	Mutation(s): 0
UniProt
Find proteins for P03421 (Human respiratory syncytial virus A (strain A2)) Explore P03421  Go to UniProtKB:  P03421

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.67 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2020-01-22 
Deposition Author(s): Cao, D., Gao, Y., Liang, B.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01GM130950

Revision History  

• Version 1.0: 2020-01-22
  Type: Initial release
  
• Version 1.1: 2020-01-29
  Changes: Database references
• Version 1.2: 2024-03-20
  Changes: Data collection, Database references