Biological Assembly 1  

 3D View: Structure

Global Symmetry: Cyclic - C12  (3D View)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: assay for oligomerization

Macromolecule Content

• Total Structure Weight: 431.01 kDa 
• Atom Count: 25164 
• Modelled Residue Count: 3072 
• Deposited Residue Count: 3708 
• Unique protein chains: 1

6QX7

The cryo-EM structure of connector in bacteriophage phi29 prohead

• DOI: 10.2210/pdb6QX7/pdb
• EMDataResource: EMD-4662

• Classification: VIRUS
• Organism(s): Bacillus virus phi29
• Expression System: Bacillus virus phi29
• Mutation(s): No 


• Deposited: 2019-03-07 Released: 2019-06-12 
• Deposition Author(s): Xu, J., Gui, M., Xiang, Y.
• Funding Organization(s): Ministry of Science and Technology (China), National Natural Science Foundation of China

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural assembly of the tailed bacteriophage φ29.

Xu, J., Wang, D., Gui, M., Xiang, Y.

(2019) Nat Commun 10: 2366-2366

• PubMed: 31147544 
• DOI: 10.1038/s41467-019-10272-3
• Primary Citation of Related Structures:  
  6QVK, 6QX7, 6QYY, 6QZ9, 6QYZ, 6QZ0, 6QYJ, 6QYM, 6QYD, 6QZF


• PubMed Abstract: 
  

The mature virion of the tailed bacteriophage ϕ29 is an ~33 MDa complex that contains more than 450 subunits of seven structural proteins assembling into a prolate head and a short non-contractile tail. Here, we report the near-atomic structures of the ϕ29 pre-genome packaging head (prohead), the mature virion and the genome-emptied virion. Structural comparisons suggest local rotation or oscillation of the head-tail connector upon DNA packaging and release. Termination of the DNA packaging occurs through pressure-dependent correlative positional and conformational changes in the connector. The funnel-shaped tail lower collar attaches the expanded narrow end of the connector and has a 180-Å long, 24-strand β barrel narrow stem tube that undergoes conformational changes upon genome release. The appendages form an interlocked assembly attaching the tail around the collar. The membrane active long loops at the distal end of the tail knob exit during the late stage of infection and form the cone-shaped tip of a largely hydrophobic helix barrel, prepared for membrane penetration.

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Organizational Affiliation: 

Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Center for Infectious Disease Research, Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China. [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Portal protein	0a,  0b,  0c,  0d,  0e,  0f,  0g,  0h,  0i,  0j,  0k,  0l	309	Bacillus virus phi29	Mutation(s): 0  Gene Names: 10
Find proteins for P04332 (Bacillus phage phi29) Explore P04332  Go to UniProtKB:  P04332

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2019-03-07 
• Released Date: 2019-06-12 
Deposition Author(s): Xu, J., Gui, M., Xiang, Y.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (China)	China	2016YFA0501100
Ministry of Science and Technology (China)	China	2015CB910102
National Natural Science Foundation of China	China	31470721

Revision History  

• Version 1.0: 2019-06-12
  Type: Initial release