6PWB image
Deposition Date 2019-07-22
Release Date 2020-03-25
Last Version Date 2024-03-20
Entry Detail
PDB ID:
6PWB
Title:
Rigid body fitting of flagellin FlaB, and flagellar coiling proteins, FcpA and FcpB, into a 10 Angstrom structure of the asymmetric flagellar filament purified from Leptospira biflexa Patoc WT cells resolved via subtomogram averaging
Biological Source:
Method Details:
Experimental Method:
Resolution:
9.83 Å
Aggregation State:
FILAMENT
Reconstruction Method:
SUBTOMOGRAM AVERAGING
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Flagellin B1 (FlaB1)
Gene (Uniprot):flaB2
Chain IDs:A (auth: AG), B (auth: AH), C (auth: AI), G (auth: AR), I (auth: BA), J (auth: BB), K (auth: BC), L (auth: BD), T (auth: BL), U (auth: BM), EA (auth: CG), FA (auth: CH), JA (auth: BS), KA (auth: BT), LA (auth: BU), MA (auth: BV), NA (auth: BW), OA (auth: BX), PA (auth: BY), SA (auth: DB), TA (auth: DC), XA (auth: CL), YA (auth: CM), ZA (auth: CN), AB (auth: CO), BB (auth: CP), CB (auth: CQ), DB (auth: CR), EB (auth: CS), FB (auth: CT), NB (auth: DG), OB (auth: DH), PB (auth: DI), QB (auth: DJ), RB (auth: DK), SB (auth: DL), TB (auth: DM), UB (auth: DN), VB (auth: DO), DC (auth: DW), EC (auth: DX), HC (auth: EB), IC (auth: EC), JC (auth: ED), KC (auth: EE), LC (auth: EF), MC (auth: EG), NC (auth: EH), OC (auth: EI), PC (auth: EJ), XC (auth: ER), YC (auth: ES), CD (auth: FA), DD (auth: FB), ED (auth: FC), FD, GD (auth: FE), OD (auth: FM), PD (auth: FN), TD (auth: EW), UD (auth: EX), VD (auth: EY), WD (auth: EZ), DE (auth: GH), EE (auth: GI), IE (auth: FR), JE (auth: FS), KE (auth: FT), LE (auth: FU), ME (auth: FV), NE (auth: FW), OE (auth: FX), QE (auth: HC), TE (auth: GM), UE (auth: GN), VE (auth: GO), WE (auth: GP), XE (auth: GQ), YE (auth: GR), CF (auth: HH), DF (auth: HI), EF (auth: HJ), FF (auth: HK), GF (auth: HL)
Chain Length:265
Number of Molecules:84
Biological Source:Leptospira biflexa serovar Patoc (strain Patoc 1 / ATCC 23582 / Paris)
Polymer Type:polypeptide(L)
Molecule:Flagellar coiling protein A (FcpA)
Gene (Uniprot):LEPBI_I0267
Chain IDs:D (auth: AL), E (auth: AM), H (auth: AU), M (auth: BE), N (auth: BF), O (auth: BG), P (auth: BH), V (auth: BN), X (auth: BP), Y (auth: CA), Z (auth: CB), AA (auth: CC), GA (auth: CI), IA (auth: CK), QA (auth: BZ), UA (auth: DD), WA (auth: DF), GB (auth: CU), HB (auth: CV), IB (auth: CW), JB (auth: CX), MB (auth: EA), WB (auth: DP), XB (auth: DQ), YB (auth: DR), ZB (auth: DS), FC (auth: DY), QC (auth: EK), RC (auth: EL), SC (auth: EM), TC (auth: EN), ZC (auth: ET), BD (auth: EV), HD (auth: FF), ID (auth: FG), JD (auth: FH), KD (auth: FI), QD (auth: FO), SD (auth: FQ), XD (auth: GA), YD (auth: GB), ZD (auth: GC), FE (auth: GJ), HE (auth: GL), RE (auth: HE), ZE (auth: GV), AF (auth: GW)
Chain Length:237
Number of Molecules:47
Biological Source:Leptospira biflexa serovar Patoc (strain Patoc 1 / ATCC 23582 / Paris)
Polymer Type:polypeptide(L)
Molecule:Flagellar coiling protein B (FcpB)
Gene (Uniprot):LEPBI_I1597
Chain IDs:F (auth: AO), Q (auth: BI), R (auth: BJ), S (auth: BK), W (auth: BO), BA (auth: CD), CA (auth: CE), DA (auth: CF), HA (auth: CJ), RA (auth: DA), VA (auth: DE), KB (auth: CY), LB (auth: CZ), AC (auth: DT), BC (auth: DU), CC (auth: DV), GC (auth: DZ), UC (auth: EO), VC (auth: EP), WC (auth: EQ), AD (auth: EU), LD (auth: FJ), MD (auth: FK), ND (auth: FL), RD (auth: FP), AE (auth: GE), BE (auth: GF), CE (auth: GG), GE (auth: GK), PE (auth: HB), SE (auth: HF), BF (auth: GZ)
Chain Length:221
Number of Molecules:32
Biological Source:Leptospira biflexa serovar Patoc (strain Patoc 1 / ATCC 23582 / Paris)
Ligand Molecules
Primary Citation

Abstact

Spirochete bacteria, including important pathogens, exhibit a distinctive means of swimming via undulations of the entire cell. Motility is powered by the rotation of supercoiled 'endoflagella' that wrap around the cell body, confined within the periplasmic space. To investigate the structural basis of flagellar supercoiling, which is critical for motility, we determined the structure of native flagellar filaments from the spirochete Leptospira by integrating high-resolution cryo-electron tomography and X-ray crystallography. We show that these filaments are coated by a highly asymmetric, multi-component sheath layer, contrasting with flagellin-only homopolymers previously observed in exoflagellated bacteria. Distinct sheath proteins localize to the filament inner and outer curvatures to define the supercoiling geometry, explaining a key functional attribute of this spirochete flagellum.

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Disease

Primary Citation of related structures