2CSE

Features of Reovirus Outer-Capsid Protein mu1 Revealed by Electron and Image Reconstruction of the virion at 7.0-A Resolution

• PDB DOI:  https://doi.org/10.2210/pdb2CSE/pdb

• Classification: VIRUS
• Organism(s): Mammalian orthoreovirus 1 Lang, Mammalian orthoreovirus 3 Dearing
• Mutation(s): No 


• Deposited: 2005-05-21 Released: 2005-10-18 
• Deposition Author(s): Zhang, X., Ji, Y., Zhang, L., Harrison, S.C., Marinescu, D.C., Nibert, M.L., Baker, T.S.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 7.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Features of reovirus outer capsid protein mu1 revealed by electron cryomicroscopy and image reconstruction of the virion at 7.0 Angstrom resolution.

Zhang, X., Ji, Y., Zhang, L., Harrison, S.C., Marinescu, D.C., Nibert, M.L., Baker, T.S.

(2005) Structure 13: 1545-1557

• PubMed: 16216585 
• DOI: https://doi.org/10.1016/j.str.2005.07.012
• Primary Citation of Related Structures:  
  2CSE


• PubMed Abstract: 
  

Reovirus is a useful model for addressing the molecular basis of membrane penetration by one of the larger nonenveloped animal viruses. We now report the structure of the reovirus virion at approximately 7.0 A resolution as obtained by electron cryomicroscopy and three-dimensional image reconstruction. Several features of the myristoylated outer capsid protein mu1, not seen in a previous X-ray crystal structure of the mu1-sigma3 heterohexamer, are evident in the virion. These features appear to be important for stabilizing the outer capsid, regulating the conformational changes in mu1 that accompany perforation of target membranes, and contributing directly to membrane penetration during cell entry.

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Organizational Affiliation: 

Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA.

Biological Assembly 1  

Global Symmetry: Icosahedral - I  (3D View)
Global Stoichiometry: Hetero 1620-mer - A600B600C180D120E60F60 

Biological assembly 1 assigned by authors and generated by (software)

Macromolecule Content

• Total Structure Weight: 1,887.93 kDa 
• Atom Count: 16,111 
• Modelled Residue Count: 16,111 
• Deposited Residue Count: 17,090 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
major outer-capsid protein mu1	A, B, C, N [auth P], O [auth Q], P [auth R], Q [auth J], R [auth K], S [auth L], T	708	Mammalian orthoreovirus 1 Lang	Mutation(s): 0  Gene Names: M2
UniProt
Find proteins for P11077 (Reovirus type 1 (strain Lang)) Explore P11077  Go to UniProtKB:  P11077

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
major capsid surface protein sigma-3	D [auth S], E [auth D], F [auth E], G [auth F], H [auth M], I [auth N], J [auth O], K [auth G], L [auth H], M [auth I]	365	Mammalian orthoreovirus 1 Lang	Mutation(s): 0  Gene Names: S4
UniProt
Find proteins for P07939 (Reovirus type 1 (strain Lang)) Explore P07939  Go to UniProtKB:  P07939

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
guanylyltransferase	U	1,289	Mammalian orthoreovirus 3 Dearing	Mutation(s): 0  Gene Names: L2 EC: 2.7.7.50 (UniProt), 2.1.1.56 (UniProt)
UniProt
Find proteins for P11079 (Reovirus type 3 (strain Dearing)) Explore P11079  Go to UniProtKB:  P11079

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
major core protein lambda 1	V, W	1,275	Mammalian orthoreovirus 1 Lang	Mutation(s): 0  Gene Names: L3 EC: 3.6.4.13
UniProt
Find proteins for Q9WAB2 (Reovirus type 1 (strain Lang)) Explore Q9WAB2  Go to UniProtKB:  Q9WAB2

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Sigma 2 protein	X, Y, Z	418	Mammalian orthoreovirus 1 Lang	Mutation(s): 0  Gene Names: S2
UniProt
Find proteins for P11314 (Reovirus type 1 (strain Lang)) Explore P11314  Go to UniProtKB:  P11314

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Minor core protein lambda 3	AA [auth 1]	1,267	Mammalian orthoreovirus 1 Lang	Mutation(s): 0  Gene Names: L1 EC: 2.7.7.48
UniProt
Find proteins for P0CK32 (Reovirus type 1 (strain Lang)) Explore P0CK32  Go to UniProtKB:  P0CK32

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 7.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-10-18 
Deposition Author(s): Zhang, X., Ji, Y., Zhang, L., Harrison, S.C., Marinescu, D.C., Nibert, M.L., Baker, T.S.

Revision History  

• Version 1.0: 2005-10-18
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-11-06
  Changes: Data collection, Database references, Other