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- EMDB-6773: Cryo-EM structure of human respiratory complex I -

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Entry
Database: EMDB / ID: EMD-6773
TitleCryo-EM structure of human respiratory complex I
Map dataThis map was obtained by sub-region refinement.
Sample
  • Complex: Human respiratory complex I
Function / homology
Function and homology information


Mitochondrial Fatty Acid Beta-Oxidation / Protein lipoylation / mitochondrial large ribosomal subunit assembly / Complex I biogenesis / protein insertion into mitochondrial inner membrane / Respiratory electron transport / blastocyst hatching / response to light intensity / Mitochondrial ribosome-associated quality control / protein lipoylation ...Mitochondrial Fatty Acid Beta-Oxidation / Protein lipoylation / mitochondrial large ribosomal subunit assembly / Complex I biogenesis / protein insertion into mitochondrial inner membrane / Respiratory electron transport / blastocyst hatching / response to light intensity / Mitochondrial ribosome-associated quality control / protein lipoylation / Mitochondrial protein import / mesenchymal stem cell proliferation / cellular response to oxygen levels / iron-sulfur cluster assembly complex / reproductive system development / Mitochondrial translation termination / ubiquinone biosynthetic process / mitochondrial large ribosomal subunit binding / mitochondrial [2Fe-2S] assembly complex / respiratory chain complex / gliogenesis / mesenchymal stem cell differentiation / circulatory system development / negative regulation of non-canonical NF-kappaB signal transduction / cellular respiration / response to hydroperoxide / cardiac muscle tissue development / oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor / neural precursor cell proliferation / oxygen sensor activity / [2Fe-2S] cluster assembly / positive regulation of mitochondrial membrane potential / sperm glycocalyx / cellular response to glucocorticoid stimulus / azurophil granule membrane / stem cell division / iron-sulfur cluster assembly / perinuclear theca / regulation of protein phosphorylation / sodium ion transport / NADH:ubiquinone reductase (H+-translocating) / ubiquinone binding / mitochondrial ATP synthesis coupled electron transport / positive regulation of ATP biosynthetic process / proton motive force-driven mitochondrial ATP synthesis / electron transport coupled proton transport / mitochondrial electron transport, NADH to ubiquinone / acyl binding / RHOG GTPase cycle / mitochondrial respiratory chain complex I assembly / NADH dehydrogenase activity / oxidoreductase activity, acting on NAD(P)H / sperm head-tail coupling apparatus / respiratory chain complex I / positive regulation of execution phase of apoptosis / NADH dehydrogenase (ubiquinone) activity / acyl carrier activity / response to cAMP / endopeptidase activator activity / quinone binding / ATP synthesis coupled electron transport / cellular response to interferon-beta / negative regulation of reactive oxygen species biosynthetic process / extrinsic apoptotic signaling pathway / cellular response to retinoic acid / reactive oxygen species metabolic process / Mitochondrial protein degradation / substantia nigra development / neurogenesis / ionotropic glutamate receptor binding / muscle contraction / cerebellum development / acrosomal vesicle / fatty acid binding / aerobic respiration / regulation of mitochondrial membrane potential / respiratory electron transport chain / response to nicotine / synaptic membrane / response to hydrogen peroxide / DNA damage response, signal transduction by p53 class mediator / kidney development / monooxygenase activity / sperm end piece / sensory perception of sound / circadian rhythm / fatty acid metabolic process / brain development / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / mitochondrial membrane / multicellular organism growth / NAD binding / fatty acid biosynthetic process / cellular senescence / positive regulation of protein catabolic process / FMN binding / nervous system development / sperm principal piece / 4 iron, 4 sulfur cluster binding
Similarity search - Function
Complex1_LYR-like / NADH:ubiquinone oxidoreductase, ESSS subunit / NADH-ubiquinone oxidoreductase 1 subunit C1 / ESSS subunit of NADH:ubiquinone oxidoreductase (complex I) / NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1, NDUB1 / MNLL subunit / NADH-ubiquinone oxidoreductase flavoprotein 3 / NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial / NADH-ubiquinone oxidoreductase, subunit 10 ...Complex1_LYR-like / NADH:ubiquinone oxidoreductase, ESSS subunit / NADH-ubiquinone oxidoreductase 1 subunit C1 / ESSS subunit of NADH:ubiquinone oxidoreductase (complex I) / NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1, NDUB1 / MNLL subunit / NADH-ubiquinone oxidoreductase flavoprotein 3 / NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial / NADH-ubiquinone oxidoreductase, subunit 10 / NADH-ubiquinone oxidoreductase subunit 10 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, metazoa / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, animal type / NADH dehydrogenase 1 beta subcomplex subunit 2 / : / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial / NADH dehydrogenase [ubiquinone] 1 subunit C2, NDUC2 / NADH:ubiquinone oxidoreductase, subunit NDUFB4 / NADH:ubiquinone oxidoreductase, NDUFB5/SGDH subunit / NADH-ubiquinone oxidoreductase subunit b14.5b (NDUFC2) / NADH-ubiquinone oxidoreductase B15 subunit (NDUFB4) / NADH:ubiquinone oxidoreductase, NDUFB5/SGDH subunit / NADH dehydrogenase 1, beta subcomplex, subunit 6 / NADH:ubiquinone oxidoreductase, NDUFB6/B17 subunit / NADH:ubiquinone oxidoreductase chain 4, N-terminal / NADH:ubiquinone oxidoreductase, chain 2 / NADH dehydrogenase subunit 2, C-terminal / : / : / NADH-ubiquinone oxidoreductase chain 4, amino terminus / NADH dehydrogenase subunit 2 C-terminus / NADH-ubiquinone oxidoreductase MWFE subunit / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3 / : / NADH dehydrogenase 1 alpha subcomplex subunit 3 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7 / NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex subunit 1 / NADH:ubiquinone oxidoreductase subunit B14.5a (Complex I-B14.5a) / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8 / NADH-ubiquinone oxidoreductase ASHI subunit (CI-ASHI or NDUFB8) / NADH-ubiquinone oxidoreductase NDSU1/NuoG-like, 4Fe-4S domain / Zinc finger, CHCC-type / Zinc-finger domain / NADH dehydrogenase subunit 5, C-terminal / NADH dehydrogenase subunit 5 C-terminus / NADH:ubiquinone oxidoreductase, NDUFS5-15kDa / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7, NDUB7 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3 / NADH-ubiquinone oxidoreductase B18 subunit (NDUFB7) / NADH-ubiquinone oxidoreductase B12 subunit family / NADH:ubiquinone oxidoreductase, iron-sulphur subunit 5 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9 / NDUFB9, LYR domain / GRIM-19 / GRIM-19 protein / Deoxynucleoside kinase domain / Deoxynucleoside kinase / NDUFA6, LYR domain / NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex, subunit 2 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 / ETC complex I subunit conserved region / NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex, subunit 6 / NADH dehydrogenase ubiquinone Fe-S protein 4-like superfamily / NADH dehydrogenase ubiquinone Fe-S protein 4 / NADH dehydrogenase ubiquinone Fe-S protein 4, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12 / NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex, subunit 8 / NADH ubiquinone oxidoreductase subunit NDUFA12 / : / NADH-quinone oxidoreductase, chain G, C-terminal / NADH-ubiquinone oxidoreductase subunit G, C-terminal / : / SLBB domain / : / NADH-quinone oxidoreductase subunit 3, ferredoxin-like domain / Respiratory-chain NADH dehydrogenase 20 Kd subunit signature. / NADH-ubiquinone oxidoreductase, 20 Kd subunit / NADH-quinone oxidoreductase, chain I / NADH-plastoquinone oxidoreductase, chain 5 subgroup / NADH-ubiquinone oxidoreductase chain 4L/K / NADH-quinone oxidoreductase, chain M/4 / NADH:ubiquinone/plastoquinone oxidoreductase, chain 6 / NADH-ubiquinone/plastoquinone oxidoreductase chain 6 / NADH-ubiquinone oxidoreductase chain 4L/Mnh complex subunit C1-like / NADH-ubiquinone/plastoquinone oxidoreductase chain 4L / NAD(P)H-quinone oxidoreductase subunit D/H / Complex 1 LYR protein domain / NADH:ubiquinone oxidoreductase, 49kDa subunit, conserved site / Respiratory chain NADH dehydrogenase 49 Kd subunit signature. / NADH:ubiquinone oxidoreductase, subunit G / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 3. / NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminal / NADH ubiquinone oxidoreductase, F subunit / NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminus / Complex 1 protein (LYR family) / NADH-quinone oxidoreductase, subunit D / Respiratory-chain NADH dehydrogenase, 49 Kd subunit
Similarity search - Domain/homology
NADH-ubiquinone oxidoreductase chain 4 / NADH-ubiquinone oxidoreductase chain 3 / NADH-ubiquinone oxidoreductase chain 1 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial / Acyl carrier protein, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3 / NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial ...NADH-ubiquinone oxidoreductase chain 4 / NADH-ubiquinone oxidoreductase chain 3 / NADH-ubiquinone oxidoreductase chain 1 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial / Acyl carrier protein, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3 / NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 2 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 5 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 7, mitochondrial / NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial / NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1 / NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7 / NADH dehydrogenase [ubiquinone] 1 subunit C2 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10 / NADH-ubiquinone oxidoreductase chain 1 / NADH-ubiquinone oxidoreductase chain 2 / NADH-ubiquinone oxidoreductase chain 3 / NADH-ubiquinone oxidoreductase chain 4L / NADH-ubiquinone oxidoreductase chain 4 / NADH-ubiquinone oxidoreductase chain 5 / NADH-ubiquinone oxidoreductase chain 6 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7 / NADH dehydrogenase [ubiquinone] flavoprotein 2, mitochondrial / NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial / NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8 / NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 6 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial / NADH-ubiquinone oxidoreductase chain 2 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11 / NADH-ubiquinone oxidoreductase chain 6 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 11, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12 / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9 / NADH-ubiquinone oxidoreductase chain 4L / NADH-ubiquinone oxidoreductase chain 5
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsGu J / Wu M / Yang M
CitationJournal: Cell / Year: 2017
Title: Architecture of Human Mitochondrial Respiratory Megacomplex IIIIIV.
Authors: Runyu Guo / Shuai Zong / Meng Wu / Jinke Gu / Maojun Yang /
Abstract: The respiratory megacomplex represents the highest-order assembly of respiratory chain complexes, and it allows mitochondria to respond to energy-requiring conditions. To understand its architecture, ...The respiratory megacomplex represents the highest-order assembly of respiratory chain complexes, and it allows mitochondria to respond to energy-requiring conditions. To understand its architecture, we examined the human respiratory chain megacomplex-IIIIIV (MCIIIIIV) with 140 subunits and a subset of associated cofactors using cryo-electron microscopy. The MCIIIIIV forms a circular structure with the dimeric CIII located in the center, where it is surrounded by two copies each of CI and CIV. Two cytochrome c (Cyt.c) molecules are positioned to accept electrons on the surface of the c state CIII dimer. Analyses indicate that CII could insert into the gaps between CI and CIV to form a closed ring, which we termed the electron transport chain supercomplex. The structure not only reveals the precise assignment of individual subunits of human CI and CIII, but also enables future in-depth analysis of the electron transport chain as a whole.
History
DepositionJun 18, 2017-
Header (metadata) releaseAug 30, 2017-
Map releaseAug 30, 2017-
UpdateSep 6, 2017-
Current statusSep 6, 2017Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0525
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.0525
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-5xtd
  • Surface level: 0.0525
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_6773.png

Downloads & links

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Map

FileDownload / File: emd_6773.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationThis map was obtained by sub-region refinement.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.08 Å/pix.
x 480 pix.
= 519.84 Å		1.08 Å/pix.
x 480 pix.
= 519.84 Å		1.08 Å/pix.
x 480 pix.
= 519.84 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.083 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0525 / Movie #1: 0.0525
Minimum - Maximum-0.13369343 - 0.32487088
Average (Standard dev.)0.00051458186 (±0.005860823)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 519.83997 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0831.0831.083
M x/y/z480480480
origin x/y/z0.0000.0000.000
length x/y/z519.840519.840519.840
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS480480480
D min/max/mean-0.1340.3250.001

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Supplemental data

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Sample components

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Entire : Human respiratory complex I

EntireName: Human respiratory complex I
Components
  • Complex: Human respiratory complex I

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Supramolecule #1: Human respiratory complex I

SupramoleculeName: Human respiratory complex I / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#44
Source (natural)Organism: Homo sapiens (human)
Molecular weightExperimental: 1.0 MDa

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 1.25 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionSoftware - Name: CTFFIND (ver. 3.0)
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 1.4) / Number images used: 167761
Initial angle assignmentType: RANDOM ASSIGNMENT / Software - Name: RELION (ver. 1.4)
Final angle assignmentType: RANDOM ASSIGNMENT / Software - Name: RELION (ver. 1.4)

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