9YFG | pdb_00009yfg

Flagellar outer membrane complex in Vibrio cholerae at disassembled, closed state

• PDB DOI: https://doi.org/10.2210/pdb9YFG/pdb
• EM Map EMD-72891: EMDB EMDataResource

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


• Deposited: 2025-09-25 Released: 2026-06-10 
• Deposition Author(s): Guo, W., Yue, J., Liu, 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: 3.55 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., Jun, L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 298-mer - A58B58C52D26E26F26G26H26 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 298-mer - AA58AB58AC26AD26AE26AF26AG26AH1AI1AJ1AK1AL1AM1AN1AO1AP1AQ1AR1AS1AT1AU1AV1AW1AX1AY1AZ1Aa1Ab1Ac1Ad1Ae1Af1Ag1Ah1Ai1Aj1Ak1Al1Am1An1Ao1Ap1Aq1Ar1As1At1Au1Av1Aw1Ax1Ay1Az1BA1BB1BC1BD1BE1BF1BG1 

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

Macromolecule Content 

• Total Structure Weight: 5,969.92 kDa 
• Atom Count: 412,635 
• Modeled Residue Count: 52,997 
• Deposited Residue Count: 53,510 
• Unique protein chains: 8

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]	227	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: flgH, VC_2194
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]	343	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: flgI, VC_2193
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]	352	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: VC_2208
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]	271	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: VC_1008
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]	183	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: VC_2601
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
FlgP	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]	12	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0

Entity ID: 7
Molecule	Chains	Sequence Length	Organism	Details	Image
Lipoprotein	AG [auth Ha], AH [auth Ia], AI [auth Ja], AJ [auth Ka], AK [auth La], CG [auth Hc], CH [auth Ic], CI [auth Jc], CJ [auth Kc], CK [auth Lc], EG [auth He], EH [auth Ie], EI [auth Je], EJ [auth Ke], EK [auth Le], GG [auth Hg], GH [auth Ig], GI [auth Jg], GJ [auth Kg], GK [auth Lg], IG [auth Hi], IH [auth Ii], II [auth Ji], IJ [auth Ki], IK [auth Li], KG [auth Hk], KH [auth Ik], KI [auth Jk], KJ [auth Kk], KK [auth Lk], MG [auth Hm], MH [auth Im], MI [auth Jm], MJ [auth Km], OG [auth Ho], OH [auth Io], OI [auth Jo], OJ [auth Ko], QG [auth Hq], QH [auth Iq], QI [auth Jq], QJ [auth Kq], SG [auth Hs], SH [auth Is], SI [auth Js], SJ [auth Ks], UG [auth Hu], UH [auth Iu], UI [auth Ju], UJ [auth Ku], WG [auth Hw], WH [auth Iw], WI [auth Jw], WJ [auth Kw], YG [auth Hy], YH [auth Iy], YI [auth Jy], YJ [auth Ky]	105	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: VC_2206
UniProt
Find proteins for Q9KQ01 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KQ01  Go to UniProtKB:  Q9KQ01

Entity ID: 8
Molecule	Chains	Sequence Length	Organism	Details	Image
FlgO domain-containing protein	BG [auth Hb], BH [auth Ib], BI [auth Jb], BJ [auth Kb], BK [auth Lb], DG [auth Hd], DH [auth Id], DI [auth Jd], DJ [auth Kd], DK [auth Ld], FG [auth Hf], FH [auth If], FI [auth Jf], FJ [auth Kf], FK [auth Lf], HG [auth Hh], HH [auth Ih], HI [auth Jh], HJ [auth Kh], HK [auth Lh], JG [auth Hj], JH [auth Ij], JI [auth Jj], JJ [auth Kj], JK [auth Lj], LG [auth Hl], LH [auth Il], LI [auth Jl], LJ [auth Kl], LK [auth Ll], NG [auth Hn], NH [auth In], NI [auth Jn], NJ [auth Kn], PG [auth Hp], PH [auth Ip], PI [auth Jp], PJ [auth Kp], RG [auth Hr], RH [auth Ir], RI [auth Jr], RJ [auth Kr], TG [auth Ht], TH [auth It], TI [auth Jt], TJ [auth Kt], VG [auth Hv], VH [auth Iv], VI [auth Jv], VJ [auth Kv], XG [auth Hx], XH [auth Ix], XI [auth Jx], XJ [auth Kx], ZG [auth Hz], ZH [auth Iz], ZI [auth Jz], ZJ [auth Kz]	190	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: VC_2207
UniProt
Find proteins for Q9KQ00 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KQ00  Go to UniProtKB:  Q9KQ00

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.55 Å
• Aggregation State: CELL 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-10 
Deposition Author(s): Guo, W., Yue, J., Liu, 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 AI189907
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
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01 AI102584

Revision History  

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