ISDA: 7W5Z

Deposition Date 2021-11-30

Release Date 2022-04-06

Last Version Date 2024-10-23

Entry Detail

PDB ID:

7W5Z

Keywords:

ELECTRON TRANSPORT

Title:

Cryo-EM structure of Tetrahymena thermophila mitochondrial complex IV, composite dimer model

Biological Source:

Source Organism:

Tetrahymena thermophila (Taxon ID: 5911)

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.02 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome C oxidase subunit Vb protein
Gene (Uniprot):TTHERM_00378620
Chain IDs:J (auth: 5B), PB (auth: 5b)
Chain Length:637
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23FF5 Pfam ID:PF01215

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_000723218
Chain IDs:K (auth: 6A), QB (auth: 6a)
Chain Length:130
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7XCY5

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit 6B
Gene (Uniprot):TTHERM_00568030
Chain IDs:L (auth: 6B), RB (auth: 6b)
Chain Length:230
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q24I72

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00046170
Chain IDs:N (auth: 6C), TB (auth: 6c)
Chain Length:103
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23DS4

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit 6B-like
Gene (Uniprot):TTHERM_00218340
Chain IDs:M (auth: 6L), SB (auth: 6l)
Chain Length:88
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7LVX0

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00151250
Chain IDs:O (auth: 7A), UB (auth: 7a)
Chain Length:133
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7MGF9

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit 7C
Gene (Uniprot):TTHERM_000470561
Chain IDs:P (auth: 7C), VB (auth: 7c)
Chain Length:236
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7X287

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CTF/NF-I domain-containing protein
Gene (Uniprot):TTHERM_01043280
Chain IDs:Q (auth: 7L), WB (auth: 7l)
Chain Length:990
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22CI1

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00361490
Chain IDs:GA (auth: A), MC (auth: a)
Chain Length:490
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22PJ5

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase acyl carrier-like subunit
Gene (Uniprot):TTHERM_00695750
Chain IDs:CA (auth: AC), IC (auth: ac)
Chain Length:127
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q24C97

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Protein phosphatase 2C, putative
Gene (Uniprot):TTHERM_00721790
Chain IDs:HA (auth: B), NC (auth: b)
Chain Length:473
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22FX8

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Chromosome condensation regulator RCC1 repeat protein
Gene (Uniprot):TTHERM_00016360
Chain IDs:AA (auth: BP), GC (auth: bp)
Chain Length:380
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22RF2 Pfam ID:PF00415

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cyclic nucleotide-binding domain protein
Gene (Uniprot):TTHERM_00977683
Chain IDs:IA (auth: C), LD (auth: c)
Chain Length:1471
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:A4VCQ2 Pfam ID:PF00520, PF07885, PF00027, PF00098

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit 1
Gene (Uniprot):cox1
Chain IDs:G (auth: C1), MB (auth: c1)
Chain Length:688
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q950Y4 Pfam ID:PF00115

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit 2
Gene (Uniprot):cox2
Chain IDs:H (auth: C2), NB (auth: c2)
Chain Length:604
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q950Y9 Pfam ID:PF00116

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ymf68
Gene (Uniprot):ymf68
Chain IDs:I (auth: C3), OB (auth: c3)
Chain Length:594
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q950Y6

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:SURF1-like protein
Gene (Uniprot):TTHERM_00338280
Chain IDs:JA (auth: D), OC (auth: d)
Chain Length:402
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7M1Q4 Pfam ID:PF02104

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:TraB family protein
Gene (Uniprot):TTHERM_00046440
Chain IDs:KA (auth: E), PC (auth: e)
Chain Length:385
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23DP7

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00047230
Chain IDs:LA (auth: F), QC (auth: f)
Chain Length:348
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23DG8

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Iron-binding zinc finger CDGSH type protein
Gene (Uniprot):TTHERM_00133510
Chain IDs:BA (auth: FS), HC (auth: fs)
Chain Length:188
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7M8P0

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT7
Gene (Uniprot):TTHERM_00675650
Chain IDs:MA (auth: G), RC (auth: g)
Chain Length:318
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23DZ5

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:SURF1-like protein
Gene (Uniprot):TTHERM_00070850
Chain IDs:NA (auth: H), SC (auth: h)
Chain Length:318
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7LTZ4 Pfam ID:PF02104

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT9
Gene (Uniprot):TTHERM_00525160
Chain IDs:OA (auth: I), TC (auth: i)
Chain Length:252
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7LY65

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT10
Gene (Uniprot):TTHERM_00420130
Chain IDs:PA (auth: J), UC (auth: j)
Chain Length:234
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7MD70

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT11
Gene (Uniprot):TTHERM_000939159
Chain IDs:QA (auth: K), VC (auth: k)
Chain Length:231
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7X4J9

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT12
Gene (Uniprot):TTHERM_00455090
Chain IDs:RA (auth: L), WC (auth: l)
Chain Length:222
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7M3P9

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_001001528
Chain IDs:SA (auth: M), XC (auth: m)
Chain Length:220
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7WZP1

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Oxoglutarate/malate translocator protein, putative
Gene (Uniprot):TTHERM_00127269
Chain IDs:R (auth: M1), XB (auth: m1)
Chain Length:346
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:A4VDV3 Pfam ID:PF00153

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:2-oxoglutarate/malate carrier protein
Gene (Uniprot):TTHERM_00621600
Chain IDs:S (auth: M2), YB (auth: m2)
Chain Length:318
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23M99 Pfam ID:PF00153

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Carrier protein
Gene (Uniprot):TTHERM_00112650
Chain IDs:T (auth: M3), ZB (auth: m3)
Chain Length:330
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22ZA6 Pfam ID:PF00153

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00530650
Chain IDs:TA (auth: N), YC (auth: n)
Chain Length:210
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7LZX8

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT15
Gene (Uniprot):TTHERM_00641250
Chain IDs:UA (auth: O), ZC (auth: o)
Chain Length:193
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23F08

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT16
Gene (Uniprot):TTHERM_00218840
Chain IDs:VA (auth: P), AD (auth: p)
Chain Length:175
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7M8Y9

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00049040
Chain IDs:WA (auth: Q), BD (auth: q)
Chain Length:173
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23D87

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT18
Gene (Uniprot):TTHERM_00218570
Chain IDs:XA (auth: R), CD (auth: r)
Chain Length:173
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7MKT6

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT19
Gene (Uniprot):TTHERM_00433830
Chain IDs:YA (auth: S), DD (auth: s)
Chain Length:170
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q230X6

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00794470
Chain IDs:ZA (auth: T), ED (auth: t)
Chain Length:158
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23VY4

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tim10/DDP family zinc finger protein
Gene (Uniprot):TTHERM_000528460
Chain IDs:U (auth: T1), AC (auth: t1)
Chain Length:72
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7X3D6 Pfam ID:PF02953

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase small TIM subunit 2
Gene (Uniprot):TTHERM_000703379
Chain IDs:V (auth: T2), BC (auth: t2)
Chain Length:72
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7XDM6

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase small TIM subunit 3
Gene (Uniprot):TTHERM_00433490
Chain IDs:W (auth: T3), CC (auth: t3)
Chain Length:93
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q231A8

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase small TIM subunit 4
Gene (Uniprot):TTHERM_01289060
Chain IDs:X (auth: T4), DC (auth: t4)
Chain Length:68
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22A35

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase small TIM subunit 5
Gene (Uniprot):TTHERM_00028510
Chain IDs:Y (auth: T5), EC (auth: t5)
Chain Length:81
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22N23

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase small TIM subunit 6
Gene (Uniprot):TTHERM_00805850
Chain IDs:Z (auth: T6), FC (auth: t6)
Chain Length:72
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q233U0

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00938940
Chain IDs:AB (auth: U), FD (auth: u)
Chain Length:154
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22DP8

Polymer Type:polypeptide(L)
Molecule:Unknown peptide
Chain IDs:A (auth: U1), GB (auth: u1)
Chain Length:98
Number of Molecules:2
Biological Source:Tetrahymena thermophila

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_01081630
Chain IDs:B (auth: U2), HB (auth: u2)
Chain Length:3634
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22C06

Polymer Type:polypeptide(L)
Molecule:Unknown peptide
Chain IDs:C (auth: U3), IB (auth: u3)
Chain Length:34
Number of Molecules:2
Biological Source:Tetrahymena thermophila

Polymer Type:polypeptide(L)
Molecule:Unknown peptide
Chain IDs:D (auth: U4), JB (auth: u4)
Chain Length:30
Number of Molecules:2
Biological Source:Tetrahymena thermophila

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Uncharacterized protein
Gene (Uniprot):TTHERM_00378730
Chain IDs:E (auth: U5), KB (auth: u5)
Chain Length:172
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23FE4 Pfam ID:PF14536

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Protein transporter Sec61 alpha subunit
Gene (Uniprot):TTHERM_000530789
Chain IDs:F (auth: U6), LB (auth: u6)
Chain Length:478
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:W7XHC8 Pfam ID:PF10559, PF00344

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT22
Gene (Uniprot):TTHERM_00691100
Chain IDs:BB (auth: V), GD (auth: v)
Chain Length:149
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7MFV5

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00666370
Chain IDs:CB (auth: W), HD (auth: w)
Chain Length:124
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q23TE5

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Transmembrane protein, putative
Gene (Uniprot):TTHERM_00161000
Chain IDs:DB (auth: X), ID (auth: x)
Chain Length:122
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q22W32

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT25
Gene (Uniprot):TTHERM_00151580
Chain IDs:EB (auth: Y), JD (auth: y)
Chain Length:105
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7M9E7

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ymf70
Gene (Uniprot):ymf70
Chain IDs:EA (auth: Y0), KC (auth: y0)
Chain Length:89
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q950Y0

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ymf75
Gene (Uniprot):ymf75
Chain IDs:FA (auth: Y5), LC (auth: y5)
Chain Length:190
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q951A7

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ymf67
Gene (Uniprot):ymf67
Chain IDs:DA (auth: Y7), JC (auth: y7)
Chain Length:453
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:Q950Y7

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cytochrome c oxidase subunit TT26
Gene (Uniprot):TTHERM_00485790
Chain IDs:FB (auth: Z), KD (auth: z)
Chain Length:90
Number of Molecules:2
Biological Source:Tetrahymena thermophila

UniProt ID:I7LTF1

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details
FME	M	MET	modified residue
SEP	J	SER	modified residue
TPO	J	THR	modified residue

Ligand Molecules

CDL

FES

HEA

PC1

Primary Citation

Structures of Tetrahymena 's respiratory chain reveal the diversity of eukaryotic core metabolism.

Zhou, L, Maldonado, M, Padavannil, A, Guo, F, Letts, J.A.Show

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