5LC5

Structure of mammalian respiratory Complex I, class2

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.35 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history. 


Literature

Structure of mammalian respiratory complex I.

Zhu, J., Vinothkumar, K.R., Hirst, J.

(2016) Nature 536: 354-358

  • DOI: https://doi.org/10.1038/nature19095
  • Primary Citation of Related Structures:  
    5LC5, 5LDW, 5LDX

  • PubMed Abstract: 

    Complex I (NADH:ubiquinone oxidoreductase), one of the largest membrane-bound enzymes in the cell, powers ATP synthesis in mammalian mitochondria by using the reducing potential of NADH to drive protons across the inner mitochondrial membrane. Mammalian complex I (ref. 1) contains 45 subunits, comprising 14 core subunits that house the catalytic machinery (and are conserved from bacteria to humans) and a mammalian-specific cohort of 31 supernumerary subunits. Knowledge of the structures and functions of the supernumerary subunits is fragmentary. Here we describe a 4.2-Å resolution single-particle electron cryomicroscopy structure of complex I from Bos taurus. We have located and modelled all 45 subunits, including the 31 supernumerary subunits, to provide the entire structure of the mammalian complex. Computational sorting of the particles identified different structural classes, related by subtle domain movements, which reveal conformationally dynamic regions and match biochemical descriptions of the 'active-to-de-active' enzyme transition that occurs during hypoxia. Our structures therefore provide a foundation for understanding complex I assembly and the effects of mutations that cause clinically relevant complex I dysfunctions, give insights into the structural and functional roles of the supernumerary subunits and reveal new information on the mechanism and regulation of catalysis.

    • Organizational Affiliation: 

    MRC Mitochondrial Biology Unit, Hills Road, Cambridge CB2 0XY, UK.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 3111Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 7, mitochondrial147Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, mitochondrial206Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
Find proteins for P23709 (Bos taurus)
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial426Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] flavoprotein 2, mitochondrial249Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial464Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial,NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial,NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial,NADH-ubiquinone oxidoreductase 75 kDa subunit, NDUFS1715Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 1313Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial176Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 1.6.99.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 6171Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 4L95Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 5604Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 4457Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 2344Bos taurusMutation(s): 0 
EC: 1.6.5.3 (PDB Primary Data), 7.1.1.2 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, NDUFA10,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial314Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial335Bos taurusMutation(s): 0 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial113Bos taurusMutation(s): 0 
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial,NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial,NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial,NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial89Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P23934 (Bos taurus)
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 280Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
Acyl carrier protein, mitochondrial75Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
Acyl carrier protein, mitochondrial85Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5116Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 6128Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8169Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11138Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 26
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13138Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 27
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1AA [auth a]70Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 28
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3BA [auth b]80Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 29
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrialCA [auth c]76Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 30
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 subunit C2,NADH dehydrogenase [ubiquinone] 1 subunit C2,NADH dehydrogenase [ubiquinone] 1 subunit C2,NADH dehydrogenase [ubiquinone] 1 subunit C2,NADH dehydrogenase [ubiquinone] 1 subunit C2,NADH dehydrogenase [ubiquinone] 1 subunit C2,NADH dehydrogenase [ubiquinone] 1 subunit C2DA [auth d]114Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 31
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 5EA [auth e]106Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 32
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1FA [auth f]57Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 33
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 11, mitochondrialGA [auth g]154Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 34
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrialHA [auth h]186Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 35
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6IA [auth i]121Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 36
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, NDUFB2JA [auth j]52Bos taurusMutation(s): 0 
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Entity ID: 37
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3, NDUFB3KA [auth k]74Bos taurusMutation(s): 0 
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Entity ID: 38
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, NDUFB8LA [auth l]118Bos taurusMutation(s): 0 
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Entity ID: 39
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4MA [auth m]118Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 40
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9NA [auth n]166Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 41
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7OA [auth o]58Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for Q02368 (Bos taurus)
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UniProt GroupQ02368
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Entity ID: 42
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10, NDUFB10,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10,NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10, NDUFB10PA [auth p]169Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for Q02373 (Bos taurus)
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UniProt GroupQ02373
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Entity ID: 43
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12QA [auth q]138Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for O97725 (Bos taurus)
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UniProt GroupO97725
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Entity ID: 44
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7, NDUFA7RA [auth r]87Bos taurusMutation(s): 0 
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Entity ID: 45
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] flavoprotein 3, NDUFV3SA [auth s]35Bos taurusMutation(s): 0 
Sequence Annotations
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Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAP
Query on NAP
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CB [auth P]NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
FMN
Query on FMN
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VA [auth F]FLAVIN MONONUCLEOTIDE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
SF4
Query on SF4
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AB [auth I]
BB [auth I]
TA [auth B]
WA [auth F]
XA [auth G]
AB [auth I],
BB [auth I],
TA [auth B],
WA [auth F],
XA [auth G],
YA [auth G]
IRON/SULFUR CLUSTER
Fe4 S4
LJBDFODJNLIPKO-UHFFFAOYSA-N
FES
Query on FES
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UA [auth E],
ZA [auth G]		FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
ZN
Query on ZN
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DB [auth R]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.35 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTREFMAC5.8.0134
RECONSTRUCTIONRELION1.4

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomU105184322/U105663141

Revision History  (Full details and data files)

  • Version 1.0: 2016-09-07
    Type: Initial release
  • Version 1.1: 2017-08-02
    Changes: Data collection, Refinement description
  • Version 1.2: 2017-08-23
    Changes: Source and taxonomy, Structure summary
  • Version 1.3: 2019-12-11
    Changes: Other
  • Version 1.4: 2024-10-23
    Changes: Data collection, Database references, Structure summary