9XNC | pdb_00009xnc

pilus-like-beta, a bacteria pilus-like structure obtained from a Karst cave from Guilin City, Guangxi Zhuang Autonomous Region, China

• PDB DOI: https://doi.org/10.2210/pdb9XNC/pdb
• EM Map EMD-67046: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): unidentified
• Mutation(s): No 


• Deposited: 2025-11-12 Released: 2026-02-18 
• Deposition Author(s): Hu, M.X., Zhang, Q., Chen, S., Ge, Q.J., Wang, J.W., Yan, N., Qin, L.J.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.37 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Absolute hand determination of glycofibrils from natural sources in cryo-EM

Zhang, Q., Qin, L.J., Wang, T.T., Li, Z.Q., Zhang, Y.L., Chen, S., Ge, Q.J., Yan, N., Wang, J.W., Hu, M.X.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 24-mer - A24 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 401.65 kDa 
• Atom Count: 28,080 
• Modeled Residue Count: 4,104 
• Deposited Residue Count: 4,104 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bacteria pilus (like)	A [auth G], B [auth H], C [auth I], D [auth J], E [auth K], F [auth L], G [auth M], H [auth N], I [auth O], J [auth P], K [auth Q], L [auth R], M [auth S], N [auth T], O [auth U], P [auth V], Q [auth W], R [auth X], S [auth Y], T [auth Z], U [auth a], V [auth b], W [auth c], X [auth d]	171	unidentified	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.37 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-02-18 
Deposition Author(s): Hu, M.X., Zhang, Q., Chen, S., Ge, Q.J., Wang, J.W., Yan, N., Qin, L.J.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32371254, 32171190, 92478205

Revision History  

• Version 1.0: 2026-02-18
  Type: Initial release