8WK3

Cryo-EM structure of the proximal rod-export apparatus and FlgF within the motor-hook complex in the CW state

• PDB DOI: https://doi.org/10.2210/pdb8WK3/pdb
• EM Map EMD-37594: EMDB EMDataResource

• Classification: MOTOR PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Mutation(s): No 
• Membrane Protein: Yes  PDBTM


• Deposited: 2023-09-26 Released: 2024-09-04 
• Deposition Author(s): Tan, J.X., Zhang, L., Zhou, Y., Zhu, Y.Q.
• Funding Organization(s): National Natural Science Foundation of China (NSFC), Ministry of Science and Technology (MoST, China)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

Cryo-EM structure of the proximal rod-export apparatus and FlgF within the motor-hook complex in the CW state

Tan, J.X., Zhang, L., Zhou, Y., Zhu, Y.Q.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 43-mer - A6B6C5D5E5F5G5H4I1J1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 43-mer - A6B5C5D5E5F4G4H1I1J1K1L1M1N1O1P1 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 6-mer - B6 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 4-mer - H4 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Hetero 10-mer - C5E5 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 1,232.43 kDa 
• Atom Count: 36,243 
• Modelled Residue Count: 4,847 
• Deposited Residue Count: 11,378 
• Unique protein chains: 8

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar hook-basal body complex protein FliE	A [auth K], B [auth L], C [auth M], D [auth N], E [auth O], F [auth P]	104	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P26462 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P26462  Go to UniProtKB:  P26462

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal body rod protein FlgB	G [auth Q], H [auth R], I [auth S], J [auth T], K [auth U]	138	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P16437 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P16437  Go to UniProtKB:  P16437

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FliR	L [auth E]	264	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P54702 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P54702  Go to UniProtKB:  P54702

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FliP	AA [auth H], EA [auth G], GA [auth F], M [auth I], MA [auth J]	245	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P54700 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P54700  Go to UniProtKB:  P54700

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FliQ	BA [auth A], CA [auth B], N [auth C], OA [auth D]	89	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P0A1L5 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P0A1L5  Go to UniProtKB:  P0A1L5

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar M-ring protein	FA [auth b], HA [auth h], IA [auth d], JA [auth f], KA [auth j], LA [auth l], O [auth c], P [auth e], Q [auth g], R [auth i], S [auth k]	560	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P15928 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P15928  Go to UniProtKB:  P15928

Entity ID: 7
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal-body rod protein FlgC	DA [auth Z], NA [auth V], PA [auth X], QA [auth W], T [auth a], Z [auth Y]	134	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P0A1I7 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P0A1I7  Go to UniProtKB:  P0A1I7

Entity ID: 8
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal-body rod protein FlgF	U [auth m], V [auth n], W [auth o], X [auth p], Y [auth q]	251	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P16323 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P16323  Go to UniProtKB:  P16323

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487:
RECONSTRUCTION	cryoSPARC	4.1.1

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-04 
Deposition Author(s): Tan, J.X., Zhang, L., Zhou, Y., Zhu, Y.Q.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	81925024
National Natural Science Foundation of China (NSFC)	China	U23A20163
Ministry of Science and Technology (MoST, China)	China	2017YFA0503900

Revision History  

• Version 1.0: 2024-09-04
  Type: Initial release