7TGH image
Deposition Date 2022-01-07
Release Date 2022-04-06
Last Version Date 2024-12-25
Entry Detail
PDB ID:
7TGH
Keywords:
MEMBRANE PROTEIN
Title:
Cryo-EM structure of respiratory super-complex CI+III2 from Tetrahymena thermophila
Biological Source:
Source Organism:
Tetrahymena thermophila (Taxon ID: 5911)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
2.60 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7TGH validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 1
Gene (Uniprot):nad1_a
Chain IDs:A (auth: 1)
Chain Length:284
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Y3 Pfam ID:PF00146
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase subunit 1
Gene (Uniprot):nad1_b
Chain IDs:B (auth: 1B)
Chain Length:59
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q09FB0 Pfam ID:PF00146
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ymf65
Gene (Uniprot):ymf65
Chain IDs:C (auth: 2)
Chain Length:360
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q951A3 Pfam ID:PF00361
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase subunit 2
Gene (Uniprot):nad2
Chain IDs:D (auth: 2B)
Chain Length:178
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q951B2 Pfam ID:PF00361
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 3
Gene (Uniprot):nad3
Chain IDs:E (auth: 3)
Chain Length:121
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Z7 Pfam ID:PF00507
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:M16 family peptidase, putative
Gene (Uniprot):TTHERM_00836690
Chain IDs:F (auth: 3A), Q (auth: 3a)
Chain Length:482
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:I7MJ25 Pfam ID:PF05193
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Peptidase M16 inactive domain protein
Gene (Uniprot):TTHERM_00502380
Chain IDs:G (auth: 3B), R (auth: 3b)
Chain Length:513
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:I7MGU2 Pfam ID:PF00675, PF05193
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Apocytochrome b
Gene (Uniprot):cob
Chain IDs:H (auth: 3C), S (auth: 3c)
Chain Length:426
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Z1 Pfam ID:PF00033
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome protein c1
Gene (Uniprot):TTHERM_00918500
Chain IDs:I (auth: 3D), T (auth: 3d)
Chain Length:319
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:Q24IM5 Pfam ID:PF02167
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Rieske iron-sulfur protein, ubiquinol-cytochrome C reductase iron-sulfur subunit
Gene (Uniprot):TTHERM_00295080
Chain IDs:J (auth: 3E), U (auth: 3e)
Chain Length:269
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:I7MIC7 Pfam ID:PF00355
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ubiquinol-cytochrome C reductase hinge protein
Gene (Uniprot):TTHERM_01142760
Chain IDs:K (auth: 3F), V (auth: 3f)
Chain Length:90
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:Q22AX2 Pfam ID:PF02320
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:UQCRB
Gene (Uniprot):TTHERM_00382330
Chain IDs:L (auth: 3G), W (auth: 3g)
Chain Length:328
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:Q23F81
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00765330
Chain IDs:M (auth: 3H), X (auth: 3h)
Chain Length:130
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:I7M484
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00456790
Chain IDs:N (auth: 3I), Y (auth: 3i)
Chain Length:119
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:I7MM45
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00218930
Chain IDs:O (auth: 3J), Z (auth: 3j)
Chain Length:62
Number of Molecules:2
Biological Source:Tetrahymena thermophila
UniProt ID:I7MFL6
Polymer Type:polypeptide(L)
Molecule:UNK1
Chain IDs:P (auth: 3M)
Chain Length:17
Number of Molecules:1
Biological Source:Tetrahymena thermophila
Polymer Type:polypeptide(L)
Molecule:UNK2
Chain IDs:AA (auth: 3l)
Chain Length:24
Number of Molecules:1
Biological Source:Tetrahymena thermophila
Polymer Type:polypeptide(L)
Molecule:UNK3
Chain IDs:BA (auth: 3m)
Chain Length:17
Number of Molecules:1
Biological Source:Tetrahymena thermophila
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 4
Gene (Uniprot):nad4
Chain IDs:CA (auth: 4)
Chain Length:505
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950X9 Pfam ID:PF00361
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ymf58
Gene (Uniprot):ymf58
Chain IDs:DA (auth: 4L)
Chain Length:116
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Z5
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase subunit 5
Gene (Uniprot):nad5
Chain IDs:EA (auth: 5)
Chain Length:750
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Z0 Pfam ID:PF00361
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ymf57
Gene (Uniprot):ymf57
Chain IDs:FA (auth: 5B)
Chain Length:100
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q951C2
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ymf62
Gene (Uniprot):ymf62
Chain IDs:GA (auth: 6)
Chain Length:255
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Y2
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUA1
Gene (Uniprot):TTHERM_00455560
Chain IDs:CB (auth: A1)
Chain Length:94
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MI60
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L51/S25/CI-B8 domain protein
Gene (Uniprot):TTHERM_00659070
Chain IDs:HA (auth: A2)
Chain Length:103
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MA77 Pfam ID:PF05047
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00148710
Chain IDs:JC (auth: A3)
Chain Length:135
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M9B3
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:ETC complex I subunit motif protein
Gene (Uniprot):TTHERM_01161000
Chain IDs:IA (auth: A5)
Chain Length:206
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q23ND5 Pfam ID:PF04716
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase, putative
Gene (Uniprot):TTHERM_00933070
Chain IDs:JA (auth: A6)
Chain Length:172
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M2Y3
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUA7
Gene (Uniprot):TTHERM_00399360
Chain IDs:KA (auth: A7)
Chain Length:282
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MIJ7
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUA8
Gene (Uniprot):TTHERM_00464930
Chain IDs:QB (auth: A8)
Chain Length:238
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MMF4
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD-dependent epimerase/dehydratase family protein
Gene (Uniprot):TTHERM_00557760
Chain IDs:LA (auth: A9)
Chain Length:362
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MLH2 Pfam ID:PF01370
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Acyl carrier protein
Gene (Uniprot):TTHERM_01005100
Chain IDs:MA (auth: AB)
Chain Length:138
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22XT6 Pfam ID:PF00550
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Acyl carrier protein
Gene (Uniprot):TTHERM_00470710
Chain IDs:NA (auth: AC)
Chain Length:133
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MD12 Pfam ID:PF00550
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12
Gene (Uniprot):TTHERM_00194499
Chain IDs:OA (auth: AL)
Chain Length:194
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:A4VDQ6 Pfam ID:PF05071
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUA13
Gene (Uniprot):TTHERM_00149260
Chain IDs:PA (auth: AM)
Chain Length:175
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M2U4
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00945210
Chain IDs:XB (auth: AN)
Chain Length:231
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q24F24
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUB2
Gene (Uniprot):TTHERM_00310880
Chain IDs:BC (auth: B2)
Chain Length:126
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MG29
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00446569
Chain IDs:EC (auth: B3)
Chain Length:83
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:A4VD20
Polymer Type:polypeptide(L)
Molecule:NDUB4
Chain IDs:YB (auth: B4)
Chain Length:108
Number of Molecules:1
Biological Source:Tetrahymena thermophila
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUB6
Gene (Uniprot):TTHERM_00430000
Chain IDs:UB (auth: B6)
Chain Length:129
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q231G0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUB7
Gene (Uniprot):TTHERM_00402070
Chain IDs:QA (auth: B7)
Chain Length:120
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MIM0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUB8
Gene (Uniprot):TTHERM_00481330
Chain IDs:RA (auth: B8)
Chain Length:207
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M855
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUB9
Gene (Uniprot):TTHERM_00985010
Chain IDs:OB (auth: B9)
Chain Length:189
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q233X7
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUB10
Gene (Uniprot):TTHERM_00193750
Chain IDs:SA (auth: BL)
Chain Length:188
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q23KG0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00114380
Chain IDs:VB (auth: BM)
Chain Length:214
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22Z32
Polymer Type:polypeptide(L)
Molecule:UNK4
Chain IDs:TA (auth: C)
Chain Length:209
Number of Molecules:1
Biological Source:Tetrahymena thermophila
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Gamma-carbonic anhydrase
Gene (Uniprot):TTHERM_01005010
Chain IDs:UA (auth: C1)
Chain Length:257
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22XU5 Pfam ID:PF00132
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Gamma-carbonic anhydrase
Gene (Uniprot):TTHERM_00541460
Chain IDs:VA (auth: C2)
Chain Length:233
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M6S0 Pfam ID:PF21711
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transcription factor apfi protein, putative
Gene (Uniprot):TTHERM_00136440
Chain IDs:WA (auth: C3)
Chain Length:346
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M8Q7 Pfam ID:PF00132
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUC2
Gene (Uniprot):TTHERM_00160690
Chain IDs:WB (auth: C4)
Chain Length:102
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22W63
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:2 iron, 2 sulfur cluster-binding protein
Gene (Uniprot):TTHERM_00161210
Chain IDs:ZA (auth: FX)
Chain Length:172
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22W11 Pfam ID:PF00111
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:DnaJ domain protein
Gene (Uniprot):TTHERM_00938750
Chain IDs:YA (auth: J1)
Chain Length:317
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22DR7 Pfam ID:PF00226
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00697370
Chain IDs:DC (auth: P1)
Chain Length:251
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q24C39
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUPH2
Gene (Uniprot):TTHERM_00193950
Chain IDs:IC (auth: P2)
Chain Length:189
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q23KE0
Polymer Type:polypeptide(L)
Molecule:UNK5
Chain IDs:GB (auth: R)
Chain Length:124
Number of Molecules:1
Biological Source:Tetrahymena thermophila
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase 75 kDa subunit
Gene (Uniprot):TTHERM_00194260
Chain IDs:HB (auth: S1)
Chain Length:718
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q23KA9 Pfam ID:PF13510, PF10588, PF22117, PF22151, PF00384, PF09326
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase subunit 7
Gene (Uniprot):nad7
Chain IDs:IB (auth: S2)
Chain Length:442
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q951B1 Pfam ID:PF00346
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase subunit 9
Gene (Uniprot):nad9_1
Chain IDs:JB (auth: S3)
Chain Length:198
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q950Z4 Pfam ID:PF00329
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial
Gene (Uniprot):TTHERM_00526930
Chain IDs:KB (auth: S4)
Chain Length:185
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MK61 Pfam ID:PF04800
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:GRAM domain protein
Gene (Uniprot):TTHERM_000129647
Chain IDs:GC (auth: S5)
Chain Length:94
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:W7X4R4
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Zinc-finger protein
Gene (Uniprot):TTHERM_00497570
Chain IDs:LB (auth: S6)
Chain Length:132
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MK02 Pfam ID:PF10276
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase subunit 10
Gene (Uniprot):nad10
Chain IDs:MB (auth: S7)
Chain Length:162
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q951B4 Pfam ID:PF01058
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase 1, chain, putative
Gene (Uniprot):TTHERM_00294640
Chain IDs:NB (auth: S8)
Chain Length:236
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MDW5 Pfam ID:PF12838
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Lipid-A-disaccharide synthase
Gene (Uniprot):TTHERM_00925340
Chain IDs:BB (auth: T1)
Chain Length:516
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22E24 Pfam ID:PF02684
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Acyl-CoA synthetase (AMP-forming)/AMP-acid ligase II
Gene (Uniprot):TTHERM_01000190
Chain IDs:AB (auth: T2)
Chain Length:333
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q24HK5 Pfam ID:PF00501
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT3
Gene (Uniprot):TTHERM_00268000
Chain IDs:CC (auth: T3)
Chain Length:311
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7LUQ4
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT4
Gene (Uniprot):TTHERM_00295430
Chain IDs:ZB (auth: T4)
Chain Length:212
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MIE0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00649080
Chain IDs:FB (auth: T5)
Chain Length:205
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7LT77
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT6
Gene (Uniprot):TTHERM_00334340
Chain IDs:EB (auth: T6)
Chain Length:144
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7M1N8
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00637590
Chain IDs:MC (auth: T7)
Chain Length:143
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22HE4
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT8
Gene (Uniprot):TTHERM_00006120
Chain IDs:AC (auth: T8)
Chain Length:135
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22SC4
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT9
Gene (Uniprot):TTHERM_00653670
Chain IDs:KC (auth: T9)
Chain Length:135
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q23B10
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT10
Gene (Uniprot):TTHERM_00616320
Chain IDs:FC (auth: TA)
Chain Length:102
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MAF0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00185570
Chain IDs:RB (auth: TB)
Chain Length:113
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22T55
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NDUTT12
Gene (Uniprot):TTHERM_00835330
Chain IDs:HC (auth: TC)
Chain Length:93
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22E95
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00992800
Chain IDs:XA (auth: TD)
Chain Length:73
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22DC2
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00399460
Chain IDs:LC (auth: TE)
Chain Length:71
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MIK1
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Thioredoxin
Gene (Uniprot):TTHERM_01205250
Chain IDs:PB (auth: TX)
Chain Length:166
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q22AI5 Pfam ID:PF00085
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial
Gene (Uniprot):TTHERM_00193910
Chain IDs:SB (auth: V1)
Chain Length:474
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:Q23KE4 Pfam ID:PF01512, PF22461, PF10531, PF10589
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase 24 kDa subunit
Gene (Uniprot):TTHERM_00335630
Chain IDs:TB (auth: V2)
Chain Length:274
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7MEP0 Pfam ID:PF01257
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase complex I, 21 kDa subunit
Gene (Uniprot):TTHERM_00715850
Chain IDs:DB (auth: X1)
Chain Length:150
Number of Molecules:1
Biological Source:Tetrahymena thermophila
UniProt ID:I7LT42 Pfam ID:PF10785
Ligand Molecules
3PE
ADP
CDL
FES
FMN
HEC
HEM
NDP
PC1
SF4
U10
ZMP
ZN
Primary Citation
Structures of Tetrahymena 's respiratory chain reveal the diversity of eukaryotic core metabolism.
Science 376 831 839 (2022)
PMID: 35357889 DOI: 10.1126/science.abn7747

Abstact

Respiration is a core biological energy-converting process whose last steps are carried out by a chain of multisubunit complexes in the inner mitochondrial membrane. To probe the functional and structural diversity of eukaryotic respiration, we examined the respiratory chain of the ciliate Tetrahymena thermophila (Tt). Using cryo-electron microscopy on a mixed sample, we solved structures of a supercomplex between Tt complex I (Tt-CI) and Tt-CIII2 (Tt-SC I+III2) and a structure of Tt-CIV2. Tt-SC I+III2 (~2.3 megadaltons) is a curved assembly with structural and functional symmetry breaking. Tt-CIV2 is a ~2.7-megadalton dimer with more than 50 subunits per protomer, including mitochondrial carriers and a TIM83-TIM133-like domain. Our structural and functional study of the T. thermophila respiratory chain reveals divergence in key components of eukaryotic respiration, thereby expanding our understanding of core metabolism.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
7TGH