9XPH | pdb_00009xph

The structure of baseplate central region of phage phikz

• PDB DOI: https://doi.org/10.2210/pdb9XPH/pdb
• EM Map EMD-67098: EMDB EMDataResource

• Classification: VIRAL PROTEIN
• Organism(s): Pseudomonas phage phiKZ
• Mutation(s): No 


• Deposited: 2025-11-16 Released: 2026-02-11 
• Deposition Author(s): Xiao, H., Peng, Z., Zhou, J., Liu, H.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.02 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural atlas of the intact jumbo phage phiKZ

Xiao, H., Peng, Z., Zhou, J., Liu, H.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 13-mer - A6B3C3D1 

Local Symmetry: Cyclic - C6  (Explore in 3D)
Local Stoichiometry: Homo 6-mer - A6 Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Hetero 12-mer - A6B3C3 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 496.91 kDa 
• Atom Count: 32,732 
• Modeled Residue Count: 4,170 
• Deposited Residue Count: 4,471 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PHIKZ101	A [auth B], B [auth A], C	460	Pseudomonas phage phiKZ	Mutation(s): 0
UniProt
Find proteins for Q8SD61 (Pseudomonas phage phiKZ) Explore Q8SD61  Go to UniProtKB:  Q8SD61

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PHIKZ174	D [auth G], E [auth D], F [auth J], G [auth E], H [auth L], I [auth F]	354	Pseudomonas phage phiKZ	Mutation(s): 0
UniProt
Find proteins for Q8SCY8 (Pseudomonas phage phiKZ) Explore Q8SCY8  Go to UniProtKB:  Q8SCY8

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
PHIKZ164	J [auth I], K, L [auth M]	293	Pseudomonas phage phiKZ	Mutation(s): 0
UniProt
Find proteins for Q8SCZ8 (Pseudomonas phage phiKZ) Explore Q8SCZ8  Go to UniProtKB:  Q8SCZ8

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
PHIKZ163.1	M [auth H]	88	Pseudomonas phage phiKZ	Mutation(s): 0
UniProt
Find proteins for L7T0L4 (Pseudomonas phage phiKZ) Explore L7T0L4  Go to UniProtKB:  L7T0L4

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.02 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-02-11 
Deposition Author(s): Xiao, H., Peng, Z., Zhou, J., Liu, H.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	12034006
National Natural Science Foundation of China (NSFC)	China	32430020
National Natural Science Foundation of China (NSFC)	China	32200994

Revision History  

• Version 1.0: 2026-02-11
  Type: Initial release