7QSO

Bovine complex I in lipid nanodisc, State 3 (Slack)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.02 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Cryo-EM structures define ubiquinone-10 binding to mitochondrial complex I and conformational transitions accompanying Q-site occupancy.

Chung, I.Wright, J.J.Bridges, H.R.Ivanov, B.S.Biner, O.Pereira, C.S.Arantes, G.M.Hirst, J.

(2022) Nat Commun 13: 2758-2758

  • DOI: https://doi.org/10.1038/s41467-022-30506-1
  • Primary Citation of Related Structures:  
    7QSK, 7QSL, 7QSM, 7QSN, 7QSO

  • PubMed Abstract: 

    Mitochondrial complex I is a central metabolic enzyme that uses the reducing potential of NADH to reduce ubiquinone-10 (Q 10 ) and drive four protons across the inner mitochondrial membrane, powering oxidative phosphorylation. Although many complex I structures are now available, the mechanisms of Q 10 reduction and energy transduction remain controversial. Here, we reconstitute mammalian complex I into phospholipid nanodiscs with exogenous Q 10 . Using cryo-EM, we reveal a Q 10 molecule occupying the full length of the Q-binding site in the 'active' (ready-to-go) resting state together with a matching substrate-free structure, and apply molecular dynamics simulations to propose how the charge states of key residues influence the Q 10 binding pose. By comparing ligand-bound and ligand-free forms of the 'deactive' resting state (that require reactivating to catalyse), we begin to define how substrate binding restructures the deactive Q-binding site, providing insights into its physiological and mechanistic relevance.


  • Organizational Affiliation

    MRC Mitochondrial Biology Unit, University of Cambridge, The Keith Peters Building, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0XY, UK.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 3115Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 7, mitochondrial216Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
UniProt
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, mitochondrial266Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial463Bos taurusMutation(s): 1 
EC: 7.1.1.2
Membrane Entity: Yes 
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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 
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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 
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial727Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 1318Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial212Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 6175Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 4L98Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 5606Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 4459Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
NADH-ubiquinone oxidoreductase chain 2347Bos taurusMutation(s): 0 
EC: 7.1.1.2
Membrane Entity: Yes 
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial343Bos taurusMutation(s): 1 
Membrane Entity: Yes 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial380Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial175Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial124Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 299Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
Acyl carrier protein, mitochondrial
T, U
156Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5116Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 6128Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8172Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11141Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13144Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 26
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: 27
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3BA [auth b]84Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 28
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: 29
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 subunit C2DA [auth d]120Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 30
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: 31
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: 32
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: 33
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrialHA [auth h]189Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 34
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6IA [auth i]127Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 35
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, mitochondrialJA [auth j]108Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 36
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3KA [auth k]98Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 37
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrialLA [auth l]186Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 38
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4MA [auth m]129Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 39
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9NA [auth n]179Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 40
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7OA [auth o]137Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 41
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10PA [auth p]176Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 42
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12QA [auth q]145Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 43
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7RA [auth r]113Bos taurusMutation(s): 0 
Membrane Entity: Yes 
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Entity ID: 44
MoleculeChains Sequence LengthOrganismDetailsImage
NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrialSA [auth s]109Bos taurusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P25712 (Bos taurus)
Explore P25712 
Go to UniProtKB:  P25712
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25712
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 15 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CDL
Query on CDL

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DC [auth X]
GC [auth d]
HC [auth h]
LC [auth r]
OB [auth L]
DC [auth X],
GC [auth d],
HC [auth h],
LC [auth r],
OB [auth L],
WB [auth N]
CARDIOLIPIN
C81 H156 O17 P2
XVTUQDWPJJBEHJ-KZCWQMDCSA-L
U10
Query on U10

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RB [auth M]UBIQUINONE-10
C59 H90 O4
ACTIUHUUMQJHFO-UPTCCGCDSA-N
PC1
Query on PC1

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FC [auth d]
KC [auth q]
MB [auth J]
TB [auth M]
WA [auth B]
FC [auth d],
KC [auth q],
MB [auth J],
TB [auth M],
WA [auth B],
YA [auth B]
1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
C44 H88 N O8 P
NRJAVPSFFCBXDT-HUESYALOSA-N
3PE
Query on 3PE

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EC [auth Y]
HB [auth H]
IB [auth I]
IC [auth h]
LB [auth I]
EC [auth Y],
HB [auth H],
IB [auth I],
IC [auth h],
LB [auth I],
MC [auth r],
NB [auth L],
PB [auth L],
SB [auth M],
TA [auth A],
UA [auth A],
UB [auth N],
VA [auth A],
VB [auth N]
1,2-Distearoyl-sn-glycerophosphoethanolamine
C41 H82 N O8 P
LVNGJLRDBYCPGB-LDLOPFEMSA-N
NDP
Query on NDP

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ZB [auth P]NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
EHZ
Query on EHZ

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BC [auth T],
CC [auth U]
~{S}-[2-[3-[[(2~{R})-3,3-dimethyl-2-oxidanyl-4-phosphonooxy-butanoyl]amino]propanoylamino]ethyl] (3~{S})-3-oxidanyltetradecanethioate
C25 H49 N2 O9 P S
JYSKQPQRUCZFIQ-REWPJTCUSA-N
GTP
Query on GTP

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XB [auth O]GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
FMN
Query on FMN

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AB [auth F]FLAVIN MONONUCLEOTIDE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
CHD
Query on CHD

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GB [auth H],
QB [auth L]
CHOLIC ACID
C24 H40 O5
BHQCQFFYRZLCQQ-OELDTZBJSA-N
SF4
Query on SF4

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BB [auth F]
CB [auth G]
DB [auth G]
JB [auth I]
KB [auth I]
BB [auth F],
CB [auth G],
DB [auth G],
JB [auth I],
KB [auth I],
XA [auth B]
IRON/SULFUR CLUSTER
Fe4 S4
LJBDFODJNLIPKO-UHFFFAOYSA-N
MYR
Query on MYR

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JC [auth o]MYRISTIC ACID
C14 H28 O2
TUNFSRHWOTWDNC-UHFFFAOYSA-N
FES
Query on FES

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EB [auth G],
ZA [auth E]
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
ZN
Query on ZN

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AC [auth R]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
K
Query on K

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FB [auth G]POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
MG
Query on MG

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YB [auth O]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Modified Residues  4 Unique
IDChains TypeFormula2D DiagramParent
FME
Query on FME
A
L-PEPTIDE LINKINGC6 H11 N O3 SMET
2MR
Query on 2MR
D
L-PEPTIDE LINKINGC8 H18 N4 O2ARG
AYA
Query on AYA
Y
L-PEPTIDE LINKINGC5 H9 N O3ALA
SAC
Query on SAC
IA [auth i]L-PEPTIDE LINKINGC5 H9 N O4SER
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.02 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.18.2-3874
RECONSTRUCTIONRELION3.1.0

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (MRC, United Kingdom)United KingdomMC_UU_00015/2

Revision History  (Full details and data files)

  • Version 1.0: 2022-05-25
    Type: Initial release
  • Version 1.1: 2022-09-28
    Changes: Database references