8WIW

Cryo-EM structure of the flagellar C ring in the CW state

• PDB DOI: https://doi.org/10.2210/pdb8WIW/pdb
• EM Map EMD-37570: EMDB EMDataResource

• Classification: MOTOR PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2023-09-25 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: 5.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

Cryo-EM structure of the flagellar C ring in the CW state

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

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C34  (Explore in 3D)
Global Stoichiometry: Hetero 238-mer - A102B34C34D34E34 

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

Macromolecule Content

• Total Structure Weight: 6,618.8 kDa 
• Atom Count: 275,366 
• Modelled Residue Count: 34,952 
• Deposited Residue Count: 60,010 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar motor switch protein FliN	A [auth 0], AA [auth r], AD [auth At], AG [auth B9], AH [auth CY], BA [auth x], BD [auth Au], BE [auth BJ], BH [auth CZ], CA [auth AD], CB [auth 5], CE [auth BK], CH [auth Ca], CI [auth C1], DB [auth 6], DE [auth BL], DF [auth Bl], DI [auth C2], EB [auth AH], EC [auth Aa], EF [auth Bm], F [auth o], FC [auth Ab], FF [auth Bn], FG [auth CD], G [auth u], GC [auth Ac], GD [auth Ay], GG [auth CE], H [auth AA], HA [auth s], HD [auth Az], HG [auth CF], HH [auth Cf], IA [auth y], ID [auth A1], IE [auth BQ], IH [auth Cg], JA [auth AE], JB [auth AI], JE [auth BR], JH [auth Ch], KB [auth AJ], KE [auth BS], KF [auth Bs], LB [auth AK], LC [auth Ag], LF [auth Bt], M [auth p], MC [auth Ah], MF [auth Bu], MG [auth CK], N [auth v], NC [auth Ai], ND [auth A6], NG [auth CL], O [auth AB], OA [auth t], OD [auth A7], OG [auth CM], OH [auth Cm], PA [auth z], PD [auth A8], PE [auth BX], PH [auth Cn], QA [auth AF], QB [auth AO], QE [auth BY], QH [auth Co], RB [auth AP], RE [auth BZ], RF [auth Bz], SB [auth AQ], SC [auth Am], SF [auth B1], T [auth q], TC [auth An], TF [auth B2], TG [auth CR], U [auth w], UC [auth Ao], UD [auth BC], UG [auth CS], V [auth AC], VA [auth 1], VD [auth BD], VG [auth CT], VH [auth Ct], WA [auth 2], WD [auth BE], WE [auth Be], WH [auth Cu], XA [auth AG], XB [auth AU], XE [auth Bf], XH [auth Cv], YB [auth AV], YE [auth Bg], YF [auth B7], ZB [auth AW], ZC [auth As], ZF [auth B8]	137	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P26419 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P26419  Go to UniProtKB:  P26419

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar M-ring protein	AC [auth N], B [auth C], BG [auth B0], CD [auth R], DA [auth G], DH [auth Cb], EE [auth BM], FB [auth K], GF [auth Bo], HC [auth O], I [auth D], IG [auth CG], JD [auth A2], KA [auth H], KH [auth Ci], LE [auth BT], MB [auth L], NF [auth Bv], OC [auth P], P [auth E], PG [auth CN], QD [auth A9], RA [auth I], RH [auth Cp], SE [auth Ba], TB [auth M], UF [auth B3], VC [auth Q], W [auth F], WG [auth CU], XD [auth BF], YA [auth J], YH [auth Cw], ZE [auth Bh]	560	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P15928 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P15928  Go to UniProtKB:  P15928

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar motor switch protein FliM	AF [auth Bi], BC [auth AX], C [auth S], CG [auth CA], DD [auth Av], EA [auth W], EH [auth Cc], FE [auth BN], GB [auth 7], HF [auth Bp], IC [auth Ad], J [auth T], JG [auth CH], KD [auth A3], LA [auth X], LH [auth Cj], ME [auth BU], NB [auth AL], OF [auth Bw], PC [auth Aj], Q [auth U], QG [auth CO], RD [auth A0], SA [auth Y], SH [auth Cq], TE [auth Bb], UB [auth AR], VF [auth B4], WC [auth Ap], X [auth V], XG [auth CV], YD [auth BG], ZA [auth g], ZH [auth Cx]	334	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P26418 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P26418  Go to UniProtKB:  P26418

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar motor switch protein FliG	AB [auth 3], AI [auth Cy], BF [auth Bj], CC [auth AY], D [auth Z], DG [auth CB], ED [auth Aw], FA [auth d], FH [auth Cd], GE [auth BO], HB [auth 8], IF [auth Bq], JC [auth Ae], K [auth a], KG [auth CI], LD [auth A4], MA [auth e], MH [auth Ck], NE [auth BV], OB [auth AM], PF [auth Bx], QC [auth Ak], R [auth b], RG [auth CP], SD [auth BA], TA [auth f], TH [auth Cr], UE [auth Bc], VB [auth AS], WF [auth B5], XC [auth Aq], Y [auth c], YG [auth CW], ZD [auth BH]	331	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0
UniProt
Find proteins for P0A1J9 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P0A1J9  Go to UniProtKB:  P0A1J9

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Chemotaxis protein CheY	AE [auth BI], BB [auth 4], BI [auth Cz], CF [auth Bk], DC [auth AZ], E [auth h], EG [auth CC], FD [auth Ax], GA [auth l], GH [auth Ce], HE [auth BP], IB [auth 9], JF [auth Br], KC [auth Af], L [auth i], LG [auth CJ], MD [auth A5], NA [auth m], NH [auth Cl], OE [auth BW], PB [auth AN], QF [auth By], RC [auth Al], S [auth j], SG [auth CQ], TD [auth BB], UA [auth n], UH [auth Cs], VE [auth Bd], WB [auth AT], XF [auth B6], YC [auth Ar], Z [auth k], ZG [auth CX]	129	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 2  Gene Names: cheY, STM1916
UniProt
Find proteins for P0A2D5 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P0A2D5  Go to UniProtKB:  P0A2D5

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 5.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

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

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