8Z60 | pdb_00008z60

Cryo-EM structure of the polar flagellar motor-hook complex

• PDB DOI: https://doi.org/10.2210/pdb8Z60/pdb
• EM Map EMD-39790: EMDB EMDataResource

• Classification: MOTOR PROTEIN
• Organism(s): Vibrio alginolyticus
• Mutation(s): No 


• Deposited: 2024-04-18 Released: 2025-10-22 
• Deposition Author(s): Zhang, L., Tan, J.X., 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: 3.22 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Models: in silico

Literature

Cryo-EM structure of the polar flagellar motor-hook complex

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

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 367-mer - A40B34C27D27E26F26G26H26I26J26K22L7M6N6O5P5Q5R5S5T4U4V3W2X1Y1Z1a1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 367-mer - AA40AB34AC32AD26AE26AF26AG26AH26AI23AJ6AK6AL5AM5AN5AO5AP4AQ2AR2AS1AT1AU1AV1AW1AX1AY1AZ1Aa1Ab1Ac1Ad1Ae1Af1Ag1Ah1Ai1Aj1Ak1Al1Am1An1Ao1Ap1Aq1Ar1As1At1Au1Av1Aw1Ax1Ay1Az1BA1BB1BC1BD1BE1BF1BG1BH1BI1BJ1BK1BL1BM1BN1BO1BP1BQ1BR1BS1BT1BU1BV1BW1BX1BY1BZ1Ba1Bb1Bc1Bd1Be1Bf1Bg1Bh1 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 40-mer - A40 Local Symmetry: Cyclic - C34  (Explore in 3D)
Local Stoichiometry: Homo 34-mer - B34 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 27-mer - C27 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 4-mer - T4 Local Symmetry: Cyclic - C26  (Explore in 3D)
Local Stoichiometry: Hetero 156-mer - E26F26G26H26I26J26 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Hetero 15-mer - O5Q5S5 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 12,718.81 kDa 
• Atom Count: 555,235 
• Modeled Residue Count: 72,074 
• Deposited Residue Count: 115,790 
• Unique protein chains: 21

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
LRR	A [auth 0], J [auth 9]	199	Vibrio alginolyticus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FliP	B [auth 1], C [auth 2], D [auth 3], LD [auth y], MD [auth z]	289	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A1W6TTE6 (Vibrio alginolyticus) Explore A0A1W6TTE6  Go to UniProtKB:  A0A1W6TTE6

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FliQ	E [auth 4], F [auth 5], G [auth 6], H [auth 7]	89	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0YAF4 (Vibrio alginolyticus) Explore A0A0H0YAF4  Go to UniProtKB:  A0A0H0YAF4

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FliR	I [auth 8]	260	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0YFV7 (Vibrio alginolyticus) Explore A0A0H0YFV7  Go to UniProtKB:  A0A0H0YFV7

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal-body rod protein FlgG	CC [auth P], DA [auth AP], DC [auth Q], EA [auth AQ], EC [auth R], FA [auth AR], FC [auth S], GA [auth AS], GC [auth T], HA [auth AT], HC [auth U], IA [auth AU], IC [auth V], JA [auth AV], JC [auth W], K [auth A], KA [auth AW], KC [auth X], LA [auth AX], LC [auth Y], MA [auth AY], MC [auth Z], NA [auth AZ], NC [auth a], OA [auth Aa], OB [auth B], PB [auth C]	262	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0YB44 (Vibrio alginolyticus) Explore A0A0H0YB44  Go to UniProtKB:  A0A0H0YB44

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar hook protein FlgE	AB [auth Am], AC [auth N], BB [auth An], BC [auth O], CB [auth Ao], DB [auth Ap], EB [auth Aq], FB [auth Ar], GB [auth As], HB [auth At], IB [auth Au], JB [auth Av], KB [auth Aw], L [auth A1], LB [auth Ax], M [auth A2], MB [auth Ay], N [auth A3], NB [auth Az], PA [auth Ab], QA [auth Ac], QB [auth D], RA [auth Ad], RB [auth E], SA [auth Ae], SB [auth F], TA [auth Af], TB [auth G], UA [auth Ag], UB [auth H], VA [auth Ah], VB [auth I], WA [auth Ai], WB [auth J], XA [auth Aj], XB [auth K], YA [auth Ak], YB [auth L], ZA [auth Al], ZB [auth M]	437	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0YA78 (Vibrio alginolyticus) Explore A0A0H0YA78  Go to UniProtKB:  A0A0H0YA78

Entity ID: 7
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar M-ring protein	AA [auth AM], AM [auth Ec], AN [auth E3], BA [auth AN], BM [auth Ed], BN [auth E4], CA [auth AO], CM [auth Ee], CN [auth E5], DM [auth Ef], EL [auth EG], EM [auth Eg], FL [auth EH], FM [auth Eh], GL [auth EI], GM [auth Ei], HL [auth EJ], HM [auth Ej], IL [auth EK], IM [auth Ek], JL [auth EL], JM [auth El], KL [auth EM], KM [auth Em], LL [auth EN], LM [auth En], ML [auth EO], MM [auth Eo], NK [auth Dz], NL [auth EP], NM [auth Ep], O [auth AA], OK [auth D1], OL [auth EQ], OM [auth Eq], P [auth AB], PK [auth D2], PL [auth ER], PM [auth Er], Q [auth AC], QK [auth D3], QL [auth ES], QM [auth Es], R [auth AD], RK [auth D4], RL [auth ET], RM [auth Et], S [auth AE], SK [auth D5], SL [auth EU], SM [auth Eu], T [auth AF], TL [auth EV], TM [auth Ev], U [auth AG], UL [auth EW], UM [auth Ew], V [auth AH], VL [auth EX], VM [auth Ex], W [auth AI], WL [auth EY], WM [auth Ey], X [auth AJ], XL [auth EZ], XM [auth Ez], Y [auth AK], YL [auth Ea], YM [auth E1], Z [auth AL], ZL [auth Eb], ZM [auth E2]	580	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for Q75N27 (Vibrio alginolyticus) Explore Q75N27  Go to UniProtKB:  Q75N27

Entity ID: 8
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal body rod protein FlgB	OC [auth b], PC [auth c], QC [auth d], RC [auth e], SC [auth f]	131	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0G9LZG6 (Vibrio alginolyticus) Explore A0A0G9LZG6  Go to UniProtKB:  A0A0G9LZG6

Entity ID: 9
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal-body rod protein FlgC	TC [auth g], UC [auth h], VC [auth i], WC [auth j], XC [auth k], YC [auth l]	137	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0G9LZH2 (Vibrio alginolyticus) Explore A0A0G9LZH2  Go to UniProtKB:  A0A0G9LZH2

Entity ID: 10
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar basal-body rod protein FlgF	AD [auth n], BD [auth o], CD [auth p], DD [auth q], ZC [auth m]	249	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0G9M4M9 (Vibrio alginolyticus) Explore A0A0G9M4M9  Go to UniProtKB:  A0A0G9M4M9

Entity ID: 11
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar hook-basal body complex protein FliE	ED [auth r], FD [auth s], GD [auth t], HD [auth u], ID [auth v], JD [auth w]	103	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0Y9C1 (Vibrio alginolyticus) Explore A0A0H0Y9C1  Go to UniProtKB:  A0A0H0Y9C1

Entity ID: 12
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar biosynthetic protein FlhB	KD [auth x]	376	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0YB55 (Vibrio alginolyticus) Explore A0A0H0YB55  Go to UniProtKB:  A0A0H0YB55

Entity ID: 13
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagella basal-body protein	AG [auth C3], AI [auth Bl], BE [auth CJ], BF [auth Cd], BH [auth BM], FG [auth C8], FI [auth Bq], GE [auth A8], GF [auth Ci], GH [auth BR], JG [auth B1], KI [auth Bv], LF [auth Cn], LH [auth BW], ME [auth CO], ND [auth B7], OG [auth B6], QF [auth Cs], QH [auth Bb], RE [auth CT], RG [auth BC], SD [auth CB], VF [auth Cx], VH [auth Bg], WE [auth CY], WG [auth BH]	377	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for D9N551 (Vibrio alginolyticus) Explore D9N551  Go to UniProtKB:  D9N551

Entity ID: 14
Molecule	Chains	Sequence Length	Organism	Details	Image
FlgH	BG [auth C4], BI [auth Bm], CE [auth A4], CF [auth Ce], CH [auth BN], GG [auth C9], GI [auth Br], HE [auth A9], HF [auth Cj], HH [auth BS], IE [auth CK], KG [auth B2], LI [auth Bw], MF [auth Co], MH [auth BX], NE [auth CP], OD [auth B8], RF [auth Ct], RH [auth Bc], SE [auth CU], SG [auth BD], TD [auth CC], WF [auth Cy], WH [auth Bh], XE [auth CZ], XG [auth BI]	259	Vibrio alginolyticus	Mutation(s): 0

Entity ID: 15
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar assembly lipoprotein FlgP	CG [auth C5], CI [auth Bn], DE [auth A5], DF [auth Cf], DH [auth BO], HG [auth C0], HI [auth Bs], IF [auth Ck], IH [auth BT], JE [auth CL], LG [auth B3], MI [auth Bx], NF [auth Cp], NH [auth BY], OE [auth CQ], PD [auth B9], SF [auth Cu], SH [auth Bd], TE [auth CV], TG [auth BE], UD [auth CD], XF [auth Cz], XH [auth Bi], YD [auth A0], YE [auth Ca], YG [auth BJ]	143	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for A0A0H0Y943 (Vibrio alginolyticus) Explore A0A0H0Y943  Go to UniProtKB:  A0A0H0Y943

Entity ID: 16
Molecule	Chains	Sequence Length	Organism	Details	Image
FlgH	DG [auth C6], DI [auth Bo], EE [auth A6], EF [auth Cg], EH [auth BP], II [auth Bt], JF [auth Cl], JH [auth BU], KE [auth CM], MG [auth B4], NI [auth By], OF [auth Cq], OH [auth BZ], PE [auth CR], PG [auth BA], QD [auth B0], TF [auth Cv], TH [auth Be], UE [auth CW], UG [auth BF], VD [auth CE], XK [auth D0], YF [auth C1], YH [auth Bj], ZD [auth CH], ZE [auth Cb], ZG [auth BK]	13	Vibrio alginolyticus	Mutation(s): 0

Entity ID: 17
Molecule	Chains	Sequence Length	Organism	Details	Image
FlgI	AE [auth CI], AF [auth Cc], AH [auth BL], EG [auth C7], EI [auth Bp], FE [auth A7], FF [auth Ch], FH [auth BQ], JI [auth Bu], KF [auth Cm], KH [auth BV], LE [auth CN], NG [auth B5], OI [auth Bz], PF [auth Cr], PH [auth Ba], QE [auth CS], QG [auth BB], RD [auth CA], UF [auth Cw], UH [auth Bf], VE [auth CX], VG [auth BG], WD [auth CF], ZF [auth C2], ZH [auth Bk]	363	Vibrio alginolyticus	Mutation(s): 0

Entity ID: 18
Molecule	Chains	Sequence Length	Organism	Details	Image
Component of sodium-driven polar flagellar motor	AJ [auth DM], BK [auth Dn], CK [auth Do], DJ [auth DP], EJ [auth DQ], FK [auth Dr], GK [auth Ds], HJ [auth DT], IG [auth DA], IJ [auth DU], JK [auth Dv], KK [auth Dw], LJ [auth DX], MJ [auth DY], PJ [auth Db], QJ [auth Dc], RI [auth DD], SI [auth DE], TJ [auth Df], UJ [auth Dg], VI [auth DH], WI [auth DI], XD [auth CG], XJ [auth Dj], YJ [auth Dk], ZI [auth DL]	293	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for P74944 (Vibrio alginolyticus) Explore P74944  Go to UniProtKB:  P74944

Entity ID: 19
Molecule	Chains	Sequence Length	Organism	Details	Image
Sodium-type flagellar motor component	AK [auth Dm], BJ [auth DN], CJ [auth DO], DK [auth Dp], EK [auth Dq], FJ [auth DR], GJ [auth DS], HK [auth Dt], IK [auth Du], JJ [auth DV], KJ [auth DW], LK [auth Dx], MK [auth Dy], NJ [auth DZ], OJ [auth Da], PI [auth DB], QI [auth DC], RJ [auth Dd], SJ [auth De], TI [auth DF], UI [auth DG], VJ [auth Dh], WJ [auth Di], XI [auth DJ], YI [auth DK], ZJ [auth Dl]	211	Vibrio alginolyticus	Mutation(s): 0
UniProt
Find proteins for Q93R25 (Vibrio alginolyticus) Explore Q93R25  Go to UniProtKB:  Q93R25

Entity ID: 20
Molecule	Chains	Sequence Length	Organism	Details	Image
FlgB-Dc	TK [auth D6], UK [auth D7], VK [auth D8], WK [auth D9]	13	Vibrio alginolyticus	Mutation(s): 0

Entity ID: 21
Molecule	Chains	Sequence Length	Organism	Details	Image
FliE-helix 1	AL [auth EC], BL [auth ED], CL [auth EE], DL [auth EF], YK [auth EA], ZK [auth EB]	17	Vibrio alginolyticus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.22 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-10-22 
Deposition Author(s): Zhang, L., Tan, J.X., 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: 2025-10-22
  Type: Initial release