7DGQ image
Entry Detail
PDB ID:
7DGQ
EMDB ID:
Keywords:
Title:
Activity optimized supercomplex state1
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2020-11-12
Release Date:
2022-05-18
Method Details:
Experimental Method:
Resolution:
5.00 Å
Aggregation State:
TISSUE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 1
Chain IDs:B (auth: 1)
Chain Length:318
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 2
Chain IDs:H (auth: 2)
Chain Length:347
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 3
Chain IDs:A (auth: 3)
Chain Length:115
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 4
Chain IDs:E (auth: 4)
Chain Length:459
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 4L
Chain IDs:F (auth: 5)
Chain Length:98
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 5
Chain IDs:G (auth: 6)
Chain Length:606
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase chain 6
Chain IDs:D (auth: 7)
Chain Length:175
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial
Chain IDs:I (auth: 8)
Chain Length:444
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] flavoprotein 2, mitochondrial
Chain IDs:C (auth: 9)
Chain Length:217
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial
Chain IDs:W (auth: A)
Chain Length:128
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 7C, mitochondrial
Chain IDs:U (auth: A0)
Chain Length:63
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 5B, mitochondrial
Chain IDs:O (auth: A5)
Chain Length:129
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 6A2, mitochondrial
Chain IDs:P (auth: A6)
Chain Length:97
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 4 isoform 1, mitochondrial
Chain IDs:M (auth: A7)
Chain Length:169
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 8B, mitochondrial
Chain IDs:V (auth: A8)
Chain Length:70
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 3
Chain IDs:L (auth: A9)
Chain Length:261
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial
Chain IDs:X (auth: B)
Chain Length:430
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 7A1, mitochondrial
Chain IDs:S (auth: B2)
Chain Length:80
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 7B, mitochondrial
Chain IDs:T (auth: B3)
Chain Length:80
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 5A, mitochondrial
Chain IDs:N (auth: B4)
Chain Length:152
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, mitochondrial
Chain IDs:Y (auth: C)
Chain Length:228
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 6B1
Chain IDs:Q (auth: C0)
Chain Length:86
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 2
Chain IDs:K (auth: C1)
Chain Length:227
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 6C
Chain IDs:R (auth: C2)
Chain Length:74
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c oxidase subunit 1
Chain IDs:J (auth: C3)
Chain Length:514
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 7, mitochondrial
Chain IDs:Z (auth: D)
Chain Length:117
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial
Chain IDs:AA (auth: E)
Chain Length:158
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial
Chain IDs:BA (auth: F)
Chain Length:75
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial
Chain IDs:CA (auth: G)
Chain Length:133
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 5
Chain IDs:DA (auth: H)
Chain Length:105
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial
Chain IDs:EA (auth: I)
Chain Length:49
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1
Chain IDs:FA (auth: J)
Chain Length:120
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 2
Chain IDs:GA (auth: K)
Chain Length:480
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3
Chain IDs:HA (auth: L)
Chain Length:83
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5
Chain IDs:IA (auth: N)
Chain Length:115
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 6
Chain IDs:JA (auth: O)
Chain Length:127
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7
Chain IDs:KA (auth: P)
Chain Length:112
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8
Chain IDs:LA (auth: Q)
Chain Length:111
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial
Chain IDs:MA (auth: R)
Chain Length:345
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial
Chain IDs:NA (auth: S)
Chain Length:91
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11
Chain IDs:OA (auth: T)
Chain Length:140
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12
Chain IDs:PA (auth: U)
Chain Length:145
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13
Chain IDs:QA (auth: V)
Chain Length:78
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Acyl carrier protein, mitochondrial
Chain IDs:RA (auth: W), FB (auth: M)
Chain Length:379
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1
Chain IDs:SA (auth: X)
Chain Length:57
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, mitochondrial
Chain IDs:TA (auth: Y)
Chain Length:379
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3
Chain IDs:UA (auth: Z)
Chain Length:325
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4
Chain IDs:VA (auth: a)
Chain Length:128
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial
Chain IDs:WA (auth: b)
Chain Length:430
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6
Chain IDs:XA (auth: c)
Chain Length:228
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7
Chain IDs:YA (auth: d)
Chain Length:117
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial
Chain IDs:EB (auth: e)
Chain Length:158
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9
Chain IDs:ZA (auth: f)
Chain Length:75
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10
Chain IDs:DB (auth: g)
Chain Length:133
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 11, mitochondrial
Chain IDs:AB (auth: h)
Chain Length:105
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial
Chain IDs:BB (auth: i)
Chain Length:49
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:NADH dehydrogenase [ubiquinone] 1 subunit C2
Chain IDs:CB (auth: j)
Chain Length:120
Number of Molecules:1
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 1, mitochondrial
Chain IDs:GB (auth: k), RB (auth: w)
Chain Length:480
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 2, mitochondrial
Chain IDs:HB (auth: l), SB (auth: x)
Chain Length:83
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b
Chain IDs:IB (auth: m), TB (auth: y)
Chain Length:379
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome c1, heme protein, mitochondrial
Chain IDs:JB (auth: o), UB (auth: z)
Chain Length:127
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit Rieske, mitochondrial
Chain IDs:KB (auth: p), VB (auth: A1)
Chain Length:196
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 7
Chain IDs:LB (auth: q), WB (auth: A2)
Chain Length:111
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 8
Chain IDs:MB (auth: r), XB (auth: A3)
Chain Length:82
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 6, mitochondrial
Chain IDs:NB (auth: s), YB (auth: B7)
Chain Length:91
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 10
Chain IDs:OB (auth: t), ZB (auth: A4)
Chain Length:56
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit 9
Chain IDs:PB (auth: u), AC (auth: B6)
Chain Length:64
Number of Molecules:2
Biological Source:Bos taurus
Polymer Type:polypeptide(L)
Description:Cytochrome b-c1 complex subunit Rieske, mitochondrial
Chain IDs:QB (auth: v), BC (auth: B5)
Chain Length:78
Number of Molecules:2
Biological Source:Bos taurus
Primary Citation
A Dynamic Substrate Pool Revealed by cryo-EM of a Lipid-Preserved Respiratory Supercomplex.
Antioxid.Redox Signal. ? ? ? (2022)
PMID: 34913730 DOI: 10.1089/ars.2021.0114

Abstact

Aims: Mitochondrial respiratory supercomplexes mediate redox electron transfer, generating a proton gradient for ATP synthesis. To provide structural information on the function of supercomplexes in physiologically relevant conditions, we conducted cryoelectron microscopy studies with supercomplexes in a lipid-preserving state. Results: Here, we present cryoelectron microscopy structures of bovine respiratory supercomplex I1III2IV1 by using a lipid-preserving sample preparation. The preparation greatly enhances the intercomplex quinone transfer activity. The structures reveal large intercomplex motions that result in different shapes and sizes of the intercomplex space between complexes I and III, forming a dynamic substrate pool. Biochemical and structural analyses indicated that intercomplex phospholipids mediate the intercomplex motions. An analysis of the different classes of focus-refined complex I showed that structural switches due to quinone reduction led to the formation of a novel channel that could transfer reduced quinones to the intercomplex substrate pool. Innovation and Conclusion: Our results indicate potential mechanism for the facilitated electron transfer involving a dynamic substrate pool and intercomplex movement by which supercomplexes play an active role in the regulation of metabolic flux and reactive oxygen species.

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Primary Citation of related structures