ISDA

Deposition Date 2024-10-22

Release Date 2025-03-12

Last Version Date 2025-03-26

Entry Detail

PDB ID:

9E2G

Keywords:

MOTOR PROTEIN

Title:

Cryo-EM structure of 48 nm repeat of microtubule doublet from T. brucei flagellum

Biological Source:

Source Organism:

Trypanosoma brucei brucei TREU927 (Taxon ID: 185431)

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

2.80 Å

Aggregation State:

FILAMENT

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing family member C2
Gene (Uniprot):Tb11.47.0006
Chain IDs:A (auth: 0A), B (auth: 0B), C (auth: 0C), D (auth: 0D)
Chain Length:752
Number of Molecules:4
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q387A9 Pfam ID:PF06565, PF13499

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing family member C2
Gene (Uniprot):Tb05.26K5.190
Chain IDs:E (auth: 0E)
Chain Length:779
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57ZX1 Pfam ID:PF06565

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Rib72 protein-like protein
Gene (Uniprot):Tb10.6k15.2920
Chain IDs:F (auth: 0F)
Chain Length:724
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38AJ5 Pfam ID:PF06565

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CMF34/CARP4
Chain IDs:G (auth: 0G)
Chain Length:779
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:C9ZJX4 Pfam ID:PF06565

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Flagellar protofilament ribbon protein, putative
Gene (Uniprot):Tb08.4A8.250
Chain IDs:H (auth: 0H), I (auth: 0I), J (auth: 0J), K (auth: 0K)
Chain Length:385
Number of Molecules:4
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57UY7 Pfam ID:PF05914

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 53
Gene (Uniprot):Tb05.30H13.190
Chain IDs:L (auth: 0M), M (auth: 0N)
Chain Length:483
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57VE0 Pfam ID:PF13868

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Meiosis-specific nuclear structural protein 1
Gene (Uniprot):Tb06.26G9.660
Chain IDs:N (auth: 0O), O (auth: 0P)
Chain Length:436
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q587B8 Pfam ID:PF13868

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nucleoside diphosphate kinase, putative
Gene (Uniprot):Tb09.211.2560
Chain IDs:P (auth: 0Q)
Chain Length:334
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38DQ0 Pfam ID:PF00334

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nucleoside diphosphate kinase, putative
Gene (Uniprot):Tb04.2L9.1240
Chain IDs:Q (auth: 0R)
Chain Length:349
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q581Q9 Pfam ID:PF00334

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Gene (Uniprot):Tb04.2L9.1260
Chain IDs:R (auth: 0S)
Chain Length:422
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q581Q7

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Gene (Uniprot):Tb10.61.1550
Chain IDs:S (auth: 0T)
Chain Length:422
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q388A8

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cyclic nucleotide-binding domain-containing protein
Gene (Uniprot):Tb11.03.0470
Chain IDs:T (auth: 0U)
Chain Length:331
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q387J0

Protein Blast

Polymer Type:polypeptide(L)
Molecule:TbMIP23
Gene (Uniprot):Tb08.26A17.70
Chain IDs:U (auth: 0V)
Chain Length:219
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57XG0

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP141
Gene (Uniprot):Tb10.70.4340
Chain IDs:V (auth: 0W)
Chain Length:130
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38BT0

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Gene (Uniprot):Tb07.26A24.220
Chain IDs:W (auth: 0X)
Chain Length:270
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57XA3

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Calpain-like cysteine peptidase, putative
Gene (Uniprot):Tb11.01.6870
Chain IDs:X (auth: 0Y)
Chain Length:301
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q381R3

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Gene (Uniprot):Tb11.01.1210
Chain IDs:Y (auth: 0Z)
Chain Length:552
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q383Y5

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Calcium-binding protein, putative
Gene (Uniprot):Tb06.5F5.200
Chain IDs:Z (auth: 1A)
Chain Length:359
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q583R2

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Gene (Uniprot):Tb09.160.3930
Chain IDs:AA (auth: 1B)
Chain Length:297
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38F14

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Peptidyl-prolyl cis-trans isomerase
Gene (Uniprot):TEOVI_000618200
Chain IDs:BA (auth: 1C)
Chain Length:282
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:A0A1G4I9Z4 Pfam ID:PF00160

Protein Blast

Polymer Type:polypeptide(L)
Molecule:EF-hand domain-containing protein
Gene (Uniprot):Tb10.6k15.3810
Chain IDs:CA (auth: 1D)
Chain Length:320
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38AR7

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP107/MC11
Gene (Uniprot):Tb04.2H8.1170
Chain IDs:DA (auth: 1E)
Chain Length:249
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q583W1

Protein Blast

Polymer Type:polypeptide(L)
Molecule:T. brucei spp.-specific protein
Gene (Uniprot):Tb09.211.0170
Chain IDs:EA (auth: 1F)
Chain Length:254
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38EE4

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP95/MC6
Gene (Uniprot):Tb10.406.0550, Tb10.406.0640
Chain IDs:FA (auth: 1G)
Chain Length:182
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q389U0

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP129
Gene (Uniprot):Tb05.45E22.450
Chain IDs:GA (auth: 1H)
Chain Length:386
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57Z34

Protein Blast

Polymer Type:polypeptide(L)
Molecule:T. brucei spp.-specific protein
Gene (Uniprot):Tb11.01.0510
Chain IDs:HA (auth: 1I), IA (auth: 1J)
Chain Length:417
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q384L6

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP21
Gene (Uniprot):Tb11.01.1850
Chain IDs:JA (auth: 1K), KA (auth: 1L)
Chain Length:415
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q383S0

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Flagellar associated protein
Gene (Uniprot):Tb11.02.4380
Chain IDs:LA (auth: 1M), MA (auth: 1N)
Chain Length:415
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q385B6

Protein Blast

Polymer Type:polypeptide(L)
Molecule:TbRib26b
Gene (Uniprot):Tb11.02.5460
Chain IDs:NA (auth: 1O), OA (auth: 1P), WD (auth: 4X)
Chain Length:247
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q384Q9

Protein Blast

Polymer Type:polypeptide(L)
Molecule:PACRGA
Gene (Uniprot):Tb03.48O8.610
Chain IDs:PA (auth: 1Q), QA (auth: 1R), RA (auth: 1S)
Chain Length:300
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q582U4 Pfam ID:PF10274

Protein Blast

Polymer Type:polypeptide(L)
Molecule:PACRGB
Gene (Uniprot):Tb09.211.1470
Chain IDs:SA (auth: 1T), TA (auth: 1U)
Chain Length:312
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38E08 Pfam ID:PF10274

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 20
Gene (Uniprot):Tb10.70.5560
Chain IDs:UA (auth: 1V), VA (auth: 1W), WA (auth: 1X), XA (auth: 1Y), YA (auth: 1Z), ZA (auth: 2A)
Chain Length:294
Number of Molecules:6
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38C25 Pfam ID:PF05018

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 52
Gene (Uniprot):Tb11.02.5550
Chain IDs:AB (auth: 2B), BB (auth: 2C), CB (auth: 2D)
Chain Length:629
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q384Q0 Pfam ID:PF00400

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Enkurin domain-containing protein
Gene (Uniprot):Tb11.02.2490
Chain IDs:DB (auth: 2E), EB (auth: 2F)
Chain Length:274
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q385T0 Pfam ID:PF13864

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Enkurin domain-containing protein
Gene (Uniprot):TB927.1.990
Chain IDs:FB (auth: 2G), GB (auth: 2H)
Chain Length:374
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q4GZB9 Pfam ID:PF13864

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MC4
Gene (Uniprot):Tb07.26A24.90
Chain IDs:HB (auth: 2I), IB (auth: 2J), JB (auth: 2K)
Chain Length:369
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57XA7

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MC5
Gene (Uniprot):Tb11.02.2530
Chain IDs:KB (auth: 2L), LB (auth: 2M)
Chain Length:272
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q385S6

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CCDC81 HU domain-containing protein
Gene (Uniprot):Tb11.01.2570
Chain IDs:MB (auth: 2N)
Chain Length:262
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q383J9 Pfam ID:PF14908, PF18289

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cilia- and flagella-associated protein 45
Gene (Uniprot):Tb08.4A8.180
Chain IDs:NB (auth: 2O), OB (auth: 2P), PB (auth: 2Q), QB (auth: 2R)
Chain Length:483
Number of Molecules:4
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57UZ3 Pfam ID:PF13868

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Trichohyalin-plectin-homology domain-containing protein
Gene (Uniprot):Tb11.02.1190
Chain IDs:RB (auth: 2S), SB (auth: 2T), TB (auth: 2U)
Chain Length:515
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q386E1

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Trichohyalin-plectin-homology domain-containing protein
Gene (Uniprot):Tb11.01.2800
Chain IDs:UB (auth: 2V), VB (auth: 2W), WB (auth: 2X), XB (auth: 2Y), YB (auth: 2Z), ZB (auth: 3A), AC (auth: 3B), BC (auth: 3C), CC (auth: 3D)
Chain Length:348
Number of Molecules:9
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q383H7

Protein Blast

Polymer Type:polypeptide(L)
Molecule:STOP axonemal protein
Gene (Uniprot):Tb08.11J15.480
Chain IDs:DC (auth: 3E), EC (auth: 3F), FC (auth: 3G), GC (auth: 3H), HC (auth: 3I), IC (auth: 3J), JC (auth: 3K), KC (auth: 3L), LC (auth: 3M), MC (auth: 3N), NC (auth: 3O), OC (auth: 3P)
Chain Length:266
Number of Molecules:12
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57YM5

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MC8
Gene (Uniprot):Tb11.02.0352
Chain IDs:PC (auth: 3Q)
Chain Length:270
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q386N3

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MC3
Gene (Uniprot):Tb10.6k15.3580
Chain IDs:QC (auth: 3R)
Chain Length:325
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38AQ1

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP90
Gene (Uniprot):Tb05.1P6.510
Chain IDs:RC (auth: 3S)
Chain Length:191
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57ZR3

Protein Blast

Polymer Type:polypeptide(L)
Molecule:PBP36
Gene (Uniprot):Tb07.5F10.850
Chain IDs:SC (auth: 3T), TC (auth: 3U)
Chain Length:320
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57UM2

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Enkurin domain-containing protein
Gene (Uniprot):Tb04.3I12.240
Chain IDs:UC (auth: 3V), VC (auth: 3W), WC (auth: 3X)
Chain Length:278
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q583F4

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Enkurin domain-containing protein
Gene (Uniprot):Tb04.3I12.230
Chain IDs:XC (auth: 3Y), YC (auth: 3Z), ZC (auth: 4A)
Chain Length:269
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q583F5

Protein Blast

Polymer Type:polypeptide(L)
Molecule:PON3
Gene (Uniprot):Tb10.61.2220
Chain IDs:AD (auth: 4B), BD (auth: 4C), CD (auth: 4D)
Chain Length:420
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q388F3

Protein Blast

Polymer Type:polypeptide(L)
Molecule:PON4
Gene (Uniprot):Tb10.61.2210
Chain IDs:DD (auth: 4E), ED (auth: 4F), FD (auth: 4G)
Chain Length:337
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q388F2

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MC7
Gene (Uniprot):Tb08.11J15.490
Chain IDs:GD (auth: 4H)
Chain Length:329
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57YM4

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP96C/MC15
Gene (Uniprot):Tb03.3K10.230
Chain IDs:HD (auth: 4I), ID (auth: 4J)
Chain Length:350
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57V66 Pfam ID:PF15239

Protein Blast

Polymer Type:polypeptide(L)
Molecule:FAP96B
Gene (Uniprot):Tb11.01.0840
Chain IDs:JD (auth: 4K), KD (auth: 4L)
Chain Length:286
Number of Molecules:2
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q384B8 Pfam ID:PF15239

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MOP23A
Gene (Uniprot):Tb03.48K5.780
Chain IDs:LD (auth: 4M), MD (auth: 4N), ND (auth: 4O)
Chain Length:193
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q582N6

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MOP23B
Gene (Uniprot):Tb11.01.2390
Chain IDs:OD (auth: 4P)
Chain Length:191
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q383L7

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MOP23C
Gene (Uniprot):Tb04.5E12.420
Chain IDs:PD (auth: 4Q)
Chain Length:166
Number of Molecules:1
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q580D2

Protein Blast

Polymer Type:polypeptide(L)
Molecule:KIAA1430 homologue
Gene (Uniprot):Tb10.70.0310
Chain IDs:QD (auth: 4R), RD (auth: 4S), XD (auth: 4Y)
Chain Length:161
Number of Molecules:3
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q38AV7 Pfam ID:PF13879

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Starmaker
Gene (Uniprot):Tb03.30P12.690
Chain IDs:SD (auth: 4T), TD (auth: 4U), UD (auth: 4V), VD (auth: 4W)
Chain Length:867
Number of Molecules:4
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q57ZC1

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tubulin alpha chain
Gene (Uniprot):TB927.1.2340, TB927.1.2360, TB927.1.2380, TB927.1.2400
Chain IDs:YD (auth: AA), AE (auth: AC), CE (auth: AE), EE (auth: AG), GE (auth: AI), IE (auth: AK), KE (auth: AM), ME (auth: AO), OE (auth: AQ), QE (auth: AS), SE (auth: AU), UE (auth: AW), WE (auth: AY), YE (auth: BA), AF (auth: BC), CF (auth: BE), EF (auth: BG), GF (auth: BI), IF (auth: BK), KF (auth: BM), MF (auth: BO), OF (auth: BQ), QF (auth: BS), SF (auth: BU), UF (auth: BW), VF (auth: BX), XF (auth: BZ), ZF (auth: CB), BG (auth: CD), DG (auth: CF), FG (auth: CH), HG (auth: CJ), JG (auth: CM), LG (auth: CO), NG (auth: CQ), PG (auth: CS), RG (auth: CU), TG (auth: CW), VG (auth: CY), XG (auth: DA), ZG (auth: DC), BH (auth: DE), DH (auth: DG), FH (auth: DI), HH (auth: DK), JH (auth: DM), LH (auth: DO), NH (auth: DQ), PH (auth: DS), RH (auth: DU), UH (auth: DX), WH (auth: DZ), YH (auth: EB), AI (auth: ED), CI (auth: EF), EI (auth: EH), GI (auth: EJ), II (auth: EL), KI (auth: EN), MI (auth: EP), OI (auth: ER), QI (auth: ET), SI (auth: EV), UI (auth: EX), WI (auth: EZ), YI (auth: FB), AJ (auth: FD), CJ (auth: FF), EJ (auth: FH), GJ (auth: FJ), IJ (auth: FL), KJ (auth: FN), MJ (auth: FP), OJ (auth: FR), QJ (auth: FT), RJ (auth: FU), TJ (auth: FW), VJ (auth: FY), XJ (auth: GA), ZJ (auth: GC), BK (auth: GE), DK (auth: GG), EK (auth: GH), GK (auth: GJ), IK (auth: GL), KK (auth: GN), MK (auth: GP), OK (auth: GR), QK (auth: GT), RK (auth: GU), TK (auth: GW), VK (auth: GY), XK (auth: HA), ZK (auth: HC), BL (auth: HE), DL (auth: HG), FL (auth: HI), HL (auth: HK), JL (auth: HM), LL (auth: HO), NL (auth: HQ), QL (auth: HT), SL (auth: HV), UL (auth: HX), WL (auth: HZ), YL (auth: IB), AM (auth: ID), DM (auth: IG), FM (auth: II), HM (auth: IK), JM (auth: IM), LM (auth: IO), NM (auth: IQ), QM (auth: IT), SM (auth: IV), UM (auth: IX), WM (auth: IZ), YM (auth: JB), AN (auth: JD), CN (auth: JF), EN (auth: JH), GN (auth: JJ), IN (auth: JL), KN (auth: JN), MN (auth: JP), NN (auth: JQ), PN (auth: JS), RN (auth: JU), TN (auth: JW), VN (auth: JY), XN (auth: KA), ZN (auth: KC), AO (auth: KD), CO (auth: KF), EO (auth: KH), GO (auth: KJ), IO (auth: KL), KO (auth: KN), MO (auth: KP), NO (auth: KQ), PO (auth: KS), RO (auth: KU), TO (auth: KW), VO (auth: KY), XO (auth: LA)
Chain Length:451
Number of Molecules:145
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q4GYY5 Pfam ID:PF00091, PF03953

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tubulin beta chain
Gene (Uniprot):TB927.1.2330, TB927.1.2350, TB927.1.2370, TB927.1.2390
Chain IDs:ZD (auth: AB), BE (auth: AD), DE (auth: AF), FE (auth: AH), HE (auth: AJ), JE (auth: AL), LE (auth: AN), NE (auth: AP), PE (auth: AR), RE (auth: AT), TE (auth: AV), VE (auth: AX), XE (auth: AZ), ZE (auth: BB), BF (auth: BD), DF (auth: BF), FF (auth: BH), HF (auth: BJ), JF (auth: BL), LF (auth: BN), NF (auth: BP), PF (auth: BR), RF (auth: BT), TF (auth: BV), WF (auth: BY), YF (auth: CA), AG (auth: CC), CG (auth: CE), EG (auth: CG), GG (auth: CI), IG (auth: CL), KG (auth: CN), MG (auth: CP), OG (auth: CR), QG (auth: CT), SG (auth: CV), UG (auth: CX), WG (auth: CZ), YG (auth: DB), AH (auth: DD), CH (auth: DF), EH (auth: DH), GH (auth: DJ), IH (auth: DL), KH (auth: DN), MH (auth: DP), OH (auth: DR), QH (auth: DT), SH (auth: DV), TH (auth: DW), VH (auth: DY), XH (auth: EA), ZH (auth: EC), BI (auth: EE), DI (auth: EG), FI (auth: EI), HI (auth: EK), JI (auth: EM), LI (auth: EO), NI (auth: EQ), PI (auth: ES), RI (auth: EU), TI (auth: EW), VI (auth: EY), XI (auth: FA), ZI (auth: FC), BJ (auth: FE), DJ (auth: FG), FJ (auth: FI), HJ (auth: FK), JJ (auth: FM), LJ (auth: FO), NJ (auth: FQ), PJ (auth: FS), SJ (auth: FV), UJ (auth: FX), WJ (auth: FZ), YJ (auth: GB), AK (auth: GD), CK (auth: GF), FK (auth: GI), HK (auth: GK), JK (auth: GM), LK (auth: GO), NK (auth: GQ), PK (auth: GS), SK (auth: GV), UK (auth: GX), WK (auth: GZ), YK (auth: HB), AL (auth: HD), CL (auth: HF), EL (auth: HH), GL (auth: HJ), IL (auth: HL), KL (auth: HN), ML (auth: HP), OL (auth: HR), PL (auth: HS), RL (auth: HU), TL (auth: HW), VL (auth: HY), XL (auth: IA), ZL (auth: IC), BM (auth: IE), CM (auth: IF), EM (auth: IH), GM (auth: IJ), IM (auth: IL), KM (auth: IN), MM (auth: IP), OM (auth: IR), PM (auth: IS), RM (auth: IU), TM (auth: IW), VM (auth: IY), XM (auth: JA), ZM (auth: JC), BN (auth: JE), DN (auth: JG), FN (auth: JI), HN (auth: JK), JN (auth: JM), LN (auth: JO), ON (auth: JR), QN (auth: JT), SN (auth: JV), UN (auth: JX), WN (auth: JZ), YN (auth: KB), BO (auth: KE), DO (auth: KG), FO (auth: KI), HO (auth: KK), JO (auth: KM), LO (auth: KO), OO (auth: KR), QO (auth: KT), SO (auth: KV), UO (auth: KX), WO (auth: KZ), YO (auth: LB)
Chain Length:442
Number of Molecules:142
Biological Source:Trypanosoma brucei brucei TREU927

UniProt ID:Q4GYY6 Pfam ID:PF00091, PF03953

Ligand Molecules

GDP

GTP

Primary Citation

Trypanosome doublet microtubule structures reveal flagellum assembly and motility mechanisms.

Xia, X, Shimogawa, M.M, Wang, H, Liu, S, Wijono, A, Langousis, G, Kassem, A.M, Wohlschlegel, J.A, Hill, K.L, Zhou, Z.H.Show

Science 387 eadr3314 eadr3314 (2025)

PMID: 40080582 DOI: 10.1126/science.adr3314

Abstact

The flagellum of Trypanosoma brucei drives the parasite's characteristic screw-like motion and is essential for its replication, transmission, and pathogenesis. However, the molecular details of this process remain unclear. Here, we present high-resolution (up to 2.8 angstrom) cryo-electron microscopy structures of T. brucei flagellar doublet microtubules (DMTs). Integrated modeling identified 154 different axonemal proteins inside and outside the DMT and, together with genetic and proteomic interrogation, revealed conserved and trypanosome-specific foundations of flagellum assembly and motility. We captured axonemal dynein motors in their pre-power stroke state. Comparing atomic models between pre- and post-power strokes defined how dynein structural changes drive sliding of adjacent DMTs during flagellar beating. This study illuminates structural dynamics underlying flagellar motility and identifies pathogen-specific proteins to consider for therapeutic interventions targeting neglected diseases.

Legend

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Chemical

Disease

Primary Citation of related structures