9YEC | pdb_00009yec

LPHT-ring in Vibrio cholerae at disassembled, closed state

• PDB DOI: https://doi.org/10.2210/pdb9YEC/pdb
• EM Map EMD-72847: EMDB EMDataResource

• Classification: MOTOR PROTEIN
• Organism(s): Vibrio cholerae O1 biovar El Tor str. N16961
• Mutation(s): No 


• Deposited: 2025-09-24 Released: 2026-06-10 
• Deposition Author(s): Guo, W., Yue, J.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.57 Å
• Aggregation State: CELL 
• Reconstruction Method: SINGLE PARTICLE 

Literature

In-situ cryo-EM structures reveal mechanisms of sheathed flagellar assembly, rotation, and disassembly in Vibrio cholerae

Wangbiao, G., Jian, Y., Jin, H.P., Fitnat, Y., Jun, L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C26  (Explore in 3D)
Global Stoichiometry: Hetero 182-mer - A52B26C26D26E26F26 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 182-mer - AA26AB26AC26AD26AE26AF1AG1AH1AI1AJ1AK1AL1AM1AN1AO1AP1AQ1AR1AS1AT1AU1AV1AW1AX1AY1AZ1Aa1Ab1Ac1Ad1Ae1Af1Ag1Ah1Ai1Aj1Ak1Al1Am1An1Ao1Ap1Aq1Ar1As1At1Au1Av1Aw1Ax1Ay1Az1BA1BB1BC1BD1BE1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 5,165.41 kDa 
• Atom Count: 279,357 
• Modeled Residue Count: 36,049 
• Deposited Residue Count: 46,566 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar L-ring protein	A [auth Aa], B [auth Ab], C [auth Ac], D [auth Ad], E [auth Ae], F [auth Af], G [auth Ag], H [auth Ah], I [auth Ai], J [auth Aj], K [auth Ak], L [auth Al], M [auth Am], N [auth An], O [auth Ao], P [auth Ap], Q [auth Aq], R [auth Ar], S [auth As], T [auth At], U [auth Au], V [auth Av], W [auth Aw], X [auth Ax], Y [auth Ay], Z [auth Az]	258	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0
UniProt
Find proteins for Q9KQ13 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KQ13  Go to UniProtKB:  Q9KQ13

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar P-ring protein	AA [auth Ba], BA [auth Bb], CA [auth Bc], DA [auth Bd], EA [auth Be], FA [auth Bf], GA [auth Bg], HA [auth Bh], IA [auth Bi], JA [auth Bj], KA [auth Bk], LA [auth Bl], MA [auth Bm], NA [auth Bn], OA [auth Bo], PA [auth Bp], QA [auth Bq], RA [auth Br], SA [auth Bs], TA [auth Bt], UA [auth Bu], VA [auth Bv], WA [auth Bw], XA [auth Bx], YA [auth By], ZA [auth Bz]	361	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0
UniProt
Find proteins for Q9KQ14 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KQ14  Go to UniProtKB:  Q9KQ14

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellar protein FlgT	AB [auth Ca], BB [auth Cb], CB [auth Cc], DB [auth Cd], EB [auth Ce], FB [auth Cf], GB [auth Cg], HB [auth Ch], IB [auth Ci], JB [auth Cj], KB [auth Ck], LB [auth Cl], MB [auth Cm], NB [auth Cn], OB [auth Co], PB [auth Cp], QB [auth Cq], RB [auth Cr], SB [auth Cs], TB [auth Ct], UB [auth Cu], VB [auth Cv], WB [auth Cw], XB [auth Cx], YB [auth Cy], ZB [auth Cz]	377	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0
UniProt
Find proteins for Q9KPZ9 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KPZ9  Go to UniProtKB:  Q9KPZ9

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Sodium-type flagellar protein MotY	AC [auth Da], BC [auth Db], CC [auth Dc], DC [auth Dd], EC [auth De], FC [auth Df], GC [auth Dg], HC [auth Dh], IC [auth Di], JC [auth Dj], KC [auth Dk], LC [auth Dl], MC [auth Dm], NC [auth Dn], OC [auth Do], PC [auth Dp], QC [auth Dq], RC [auth Dr], SC [auth Ds], TC [auth Dt], UC [auth Du], VC [auth Dv], WC [auth Dw], XC [auth Dx], YC [auth Dy], ZC [auth Dz]	294	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0
UniProt
Find proteins for Q9KT95 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KT95  Go to UniProtKB:  Q9KT95

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Sodium-type flagellar protein MotX	AD [auth Ea], BD [auth Eb], CD [auth Ec], DD [auth Ed], ED [auth Ee], FD [auth Ef], GD [auth Eg], HD [auth Eh], ID [auth Ei], JD [auth Ej], KD [auth Ek], LD [auth El], MD [auth Em], ND [auth En], OD [auth Eo], PD [auth Ep], QD [auth Eq], RD [auth Er], SD [auth Es], TD [auth Et], UD [auth Eu], VD [auth Ev], WD [auth Ew], XD [auth Ex], YD [auth Ey], ZD [auth Ez]	211	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0
UniProt
Find proteins for Q9KNX9 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KNX9  Go to UniProtKB:  Q9KNX9

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Lipoprotein	AE [auth Fa], AF [auth Ga], BE [auth Fb], BF [auth Gb], CE [auth Fc], CF [auth Gc], DE [auth Fd], DF [auth Gd], EE [auth Fe], EF [auth Ge], FE [auth Ff], FF [auth Gf], GE [auth Fg], GF [auth Gg], HE [auth Fh], HF [auth Gh], IE [auth Fi], IF [auth Gi], JE [auth Fj], JF [auth Gj], KE [auth Fk], KF [auth Gk], LE [auth Fl], LF [auth Gl], ME [auth Fm], MF [auth Gm], NE [auth Fn], NF [auth Gn], OE [auth Fo], OF [auth Go], PE [auth Fp], PF [auth Gp], QE [auth Fq], QF [auth Gq], RE [auth Fr], RF [auth Gr], SE [auth Fs], SF [auth Gs], TE [auth Ft], TF [auth Gt], UE [auth Fu], UF [auth Gu], VE [auth Fv], VF [auth Gv], WE [auth Fw], WF [auth Gw], XE [auth Fx], XF [auth Gx], YE [auth Fy], YF [auth Gy], ZE [auth Fz], ZF [auth Gz]	145	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0
UniProt
Find proteins for Q9KQ01 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KQ01  Go to UniProtKB:  Q9KQ01

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.57 Å
• Aggregation State: CELL 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-10 
Deposition Author(s): Guo, W., Yue, J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01 AI087946
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01 AI132818

Revision History  

• Version 1.0: 2026-06-10
  Type: Initial release