23SH | pdb_000023sh

The composite Cryo-EM structure of the tail region of bacteriophage RAN69

• PDB DOI: https://doi.org/10.2210/pdb23SH/pdb
• EM Map EMD-69212: EMDB EMDataResource

• Classification: VIRUS
• Organism(s): Klebsiella phage RAN69
• Mutation(s): No 


• Deposited: 2026-02-15 Released: 2026-05-27 
• Deposition Author(s): Ruan, Z., Hu, H., Wang, A., Shao, Q., Li, X., Xie, L., Sun, Z., Yu, J., Fang, Q.
• Funding Organization(s): Other government, National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Near-complete cryo-EM structure of the Klebsiella pneumoniae podophage RAN69 reveals tail fiber-spike interface and a divergent pre-ejectosome

Ruan, Z., Hu, H., Wang, A., Shao, Q., Li, X., Xie, L., Sun, Z., Yu, J., Fang, Q.

To be published.

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 526.88 kDa 
• Atom Count: 36,509 
• Modeled Residue Count: 4,799 
• Deposited Residue Count: 4,879 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
tail spike gp1	A [auth B], B [auth J], C [auth O]	577	Klebsiella phage RAN69	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
nozzle gp13	D [auth T]	793	Klebsiella phage RAN69	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
tail fiber gp9	E [auth r], H [auth i], I [auth n]	307	Klebsiella phage RAN69	Mutation(s): 0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
adaptor gp14	F [auth Y], G [auth d]	186	Klebsiella phage RAN69	Mutation(s): 0

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
portal gp19	J [auth w], K [auth 0]	531	Klebsiella phage RAN69	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.19.2_4158
RECONSTRUCTION	RELION	4.0

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-05-27 
Deposition Author(s): Ruan, Z., Hu, H., Wang, A., Shao, Q., Li, X., Xie, L., Sun, Z., Yu, J., Fang, Q.

---

Funding Organization	Location	Grant Number
Other government		JCYJ20250604174416022
Other government		A2402025
National Natural Science Foundation of China (NSFC)	China	32371285

Revision History  

• Version 1.0: 2026-05-27
  Type: Initial release