7BP0 | pdb_00007bp0

Packing Bacteriophage T7 portal protein GP8

• PDB DOI: https://doi.org/10.2210/pdb7BP0/pdb
• EM Map EMD-30138: EMDB EMDataResource

• Classification: STRUCTURAL PROTEIN
• Organism(s): Escherichia phage T7
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2020-03-20 Released: 2021-03-17 
• Deposition Author(s): Chen, W.Y., Xiao, H.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural changes of a bacteriophage upon DNA packaging and maturation.

Chen, W., Xiao, H., Wang, X., Song, S., Han, Z., Li, X., Yang, F., Wang, L., Song, J., Liu, H., Cheng, L.

(2020) Protein Cell 11: 374-379

• PubMed: 32266588 
• DOI: https://doi.org/10.1007/s13238-020-00715-9
• Primary Citation Related Structures: 
  7BOU, 7BOX, 7BOY, 7BOZ, 7BP0

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Organizational Affiliation: 
• Key Laboratory for Matter Microstructure and Function of Hunan Province, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, China.
State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 100052, China.
Technology Center for Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 100052, China. [e-mail].
Key Laboratory for Matter Microstructure and Function of Hunan Province, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, China. [e-mail].
Technology Center for Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China. [e-mail].

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 710.09 kDa 
• Atom Count: 41,388 
• Modeled Residue Count: 5,244 
• Deposited Residue Count: 6,432 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Portal protein	A [auth a], B [auth b], C [auth c], D [auth d], E [auth e], F [auth f], G [auth g], H [auth h], I [auth i], J [auth j], K [auth k], L [auth l]	536	Escherichia phage T7	Mutation(s): 0
UniProt
Find proteins for P03728 (Escherichia phage T7) Explore P03728  Go to UniProtKB:  P03728

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2021-03-17 
Deposition Author(s): Chen, W.Y., Xiao, H.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)		--

Revision History  

• Version 1.0: 2021-03-17
  Type: Initial release
  
• Version 1.1: 2024-03-27
  Changes: Data collection, Database references
• Version 1.2: 2025-06-18
  Changes: Data collection, Structure summary