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- EMDB-12655: Respiratory complex I from Escherichia coli - conformation 3 -

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Basic information

Entry
Database: EMDB / ID: EMD-12655
TitleRespiratory complex I from Escherichia coli - conformation 3
Map data
Sample
  • Complex: Respiratory complex I from Escherichia coli - conformation 3
    • Protein or peptide: x 13 types
  • Ligand: x 4 types
Function / homology
Function and homology information


NADH dehydrogenase complex / plasma membrane respiratory chain complex I / Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions / NADH:ubiquinone reductase (non-electrogenic) activity / molybdopterin cofactor binding / oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor / cellular respiration / respiratory chain complex I / NADH dehydrogenase activity / ubiquinone binding ...NADH dehydrogenase complex / plasma membrane respiratory chain complex I / Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions / NADH:ubiquinone reductase (non-electrogenic) activity / molybdopterin cofactor binding / oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor / cellular respiration / respiratory chain complex I / NADH dehydrogenase activity / ubiquinone binding / electron transport coupled proton transport / NADH dehydrogenase (ubiquinone) activity / quinone binding / ATP synthesis coupled electron transport / aerobic respiration / respiratory electron transport chain / transmembrane transport / 2 iron, 2 sulfur cluster binding / NAD binding / FMN binding / 4 iron, 4 sulfur cluster binding / iron ion binding / membrane / metal ion binding / plasma membrane / cytoplasm
Similarity search - Function
NADH dehydrogenase, subunit CD / NAD(P)H-quinone oxidoreductase subunit 3, bacterial/plastid / NAD(P)H-quinone oxidoreductase, subunit N/subunit 2 / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin dinucleotide-binding domain / Molydopterin dinucleotide binding domain / Respiratory-chain NADH dehydrogenase 20 Kd subunit signature. / NADH-ubiquinone oxidoreductase, 20 Kd subunit / NADH-quinone oxidoreductase, chain I ...NADH dehydrogenase, subunit CD / NAD(P)H-quinone oxidoreductase subunit 3, bacterial/plastid / NAD(P)H-quinone oxidoreductase, subunit N/subunit 2 / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin dinucleotide-binding domain / Molydopterin dinucleotide binding domain / Respiratory-chain NADH dehydrogenase 20 Kd subunit signature. / NADH-ubiquinone oxidoreductase, 20 Kd subunit / NADH-quinone oxidoreductase, chain I / NAD(P)H-quinone oxidoreductase subunit D/H / NADH:ubiquinone oxidoreductase, 49kDa subunit, conserved site / Respiratory chain NADH dehydrogenase 49 Kd subunit signature. / NADH-quinone oxidoreductase, subunit D / Respiratory-chain NADH dehydrogenase, 49 Kd subunit / NADH:ubiquinone oxidoreductase, subunit G / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 3. / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 2. / NADH-ubiquinone/plastoquinone oxidoreductase chain 6, subunit NuoJ / NADH dehydrogenase, subunit C / NADH ubiquinone oxidoreductase, F subunit / NADH-plastoquinone oxidoreductase, chain 5 subgroup / NADH:ubiquinone oxidoreductase, 30kDa subunit, conserved site / Respiratory chain NADH dehydrogenase 30 Kd subunit signature. / NADH-quinone oxidoreductase, chain M/4 / 2Fe-2S iron-sulfur cluster binding domain / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 1. / NADH-ubiquinone oxidoreductase chain 4L/K / NADH:ubiquinone/plastoquinone oxidoreductase, chain 6 / NADH-ubiquinone/plastoquinone oxidoreductase chain 6 / NADH:ubiquinone oxidoreductase, 75kDa subunit, conserved site / NADH:ubiquinone oxidoreductase, 30kDa subunit / NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminal / NADH-quinone oxidoreductase, chain 5-like / NADH:ubiquinone oxidoreductase, 30kDa subunit superfamily / Respiratory-chain NADH dehydrogenase, 30 Kd subunit / NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminus / NADH-ubiquinone oxidoreductase-G iron-sulfur binding region / NADH-ubiquinone oxidoreductase-G iron-sulfur binding region / Respiratory-chain NADH dehydrogenase 51 Kd subunit signature 1. / NADH-ubiquinone oxidoreductase chain 4L/Mnh complex subunit C1-like / NADH-ubiquinone/plastoquinone oxidoreductase chain 4L / NADH:ubiquinone/plastoquinone oxidoreductase, chain 3 / NADH:ubiquinone oxidoreductase, subunit 3 superfamily / NADH-ubiquinone/plastoquinone oxidoreductase, chain 3 / Respiratory-chain NADH dehydrogenase 24 Kd subunit signature. / NADH:ubiquinone oxidoreductase, subunit 1, conserved site / Respiratory-chain NADH dehydrogenase subunit 1 signature 1. / Respiratory-chain NADH dehydrogenase subunit 1 signature 2. / NADH:ubiquinone oxidoreductase, subunit 1/F420H2 oxidoreductase subunit H / NADH dehydrogenase / Aspartate decarboxylase-like domain superfamily / NuoE domain / NADH:ubiquinone oxidoreductase / NADH-quinone oxidoreductase subunit E-like / Thioredoxin-like [2Fe-2S] ferredoxin / NADH:quinone oxidoreductase/Mrp antiporter, membrane subunit / Proton-conducting membrane transporter / NADH-quinone oxidoreductase subunit E, N-terminal / NADH:ubiquinone oxidoreductase, subunit G, iron-sulphur binding / His(Cys)3-ligated-type [4Fe-4S] domain profile. / NADH:ubiquinone oxidoreductase, 51kDa subunit, conserved site / Respiratory-chain NADH dehydrogenase 51 Kd subunit signature 2. / NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain / NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain / NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain superfamily / NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain superfamily / Respiratory-chain NADH dehydrogenase 51 Kd subunit / NADH-ubiquinone oxidoreductase-F iron-sulfur binding region / NADH-ubiquinone oxidoreductase-F iron-sulfur binding region / Molybdopterin oxidoreductase, 4Fe-4S domain / Prokaryotic molybdopterin oxidoreductases 4Fe-4S domain profile. / NADH:ubiquinone oxidoreductase-like, 20kDa subunit / NADH ubiquinone oxidoreductase, 20 Kd subunit / Molybdopterin oxidoreductase / Molybdopterin oxidoreductase / [NiFe]-hydrogenase, large subunit / 4Fe-4S dicluster domain / 2Fe-2S ferredoxin-type iron-sulfur binding domain profile. / 2Fe-2S ferredoxin-type iron-sulfur binding domain / 2Fe-2S ferredoxin-like superfamily / 4Fe-4S ferredoxin, iron-sulphur binding, conserved site / 4Fe-4S ferredoxin-type iron-sulfur binding region signature. / 4Fe-4S ferredoxin-type iron-sulfur binding domain profile. / 4Fe-4S ferredoxin-type, iron-sulphur binding domain / Thioredoxin-like superfamily
Similarity search - Domain/homology
NADH-quinone oxidoreductase subunit L / NADH-quinone oxidoreductase subunit A / NADH-quinone oxidoreductase subunit B / NADH-quinone oxidoreductase subunit E / NADH-quinone oxidoreductase subunit H / NADH-quinone oxidoreductase subunit I / NADH-quinone oxidoreductase subunit J / NADH-quinone oxidoreductase subunit K / NADH-quinone oxidoreductase subunit M / NADH-quinone oxidoreductase subunit N ...NADH-quinone oxidoreductase subunit L / NADH-quinone oxidoreductase subunit A / NADH-quinone oxidoreductase subunit B / NADH-quinone oxidoreductase subunit E / NADH-quinone oxidoreductase subunit H / NADH-quinone oxidoreductase subunit I / NADH-quinone oxidoreductase subunit J / NADH-quinone oxidoreductase subunit K / NADH-quinone oxidoreductase subunit M / NADH-quinone oxidoreductase subunit N / NADH-quinone oxidoreductase subunit F / NADH-quinone oxidoreductase subunit C/D / NADH-quinone oxidoreductase subunit G
Similarity search - Component
Biological speciesEscherichia coli B (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsKolata P / Efremov RG
Funding support Belgium, 1 items
OrganizationGrant numberCountry
European Research Council (ERC)00281ROEF Belgium
CitationJournal: Elife / Year: 2021
Title: Structure of respiratory complex I reconstituted into lipid nanodiscs reveals an uncoupled conformation.
Authors: Piotr Kolata / Rouslan G Efremov /
Abstract: Respiratory complex I is a multi-subunit membrane protein complex that reversibly couples NADH oxidation and ubiquinone reduction with proton translocation against transmembrane potential. Complex I ...Respiratory complex I is a multi-subunit membrane protein complex that reversibly couples NADH oxidation and ubiquinone reduction with proton translocation against transmembrane potential. Complex I from is among the best functionally characterized complexes, but its structure remains unknown, hindering further studies to understand the enzyme coupling mechanism. Here, we describe the single particle cryo-electron microscopy (cryo-EM) structure of the entire catalytically active complex I reconstituted into lipid nanodiscs. The structure of this mesophilic bacterial complex I displays highly dynamic connection between the peripheral and membrane domains. The peripheral domain assembly is stabilized by unique terminal extensions and an insertion loop. The membrane domain structure reveals novel dynamic features. Unusual conformation of the conserved interface between the peripheral and membrane domains suggests an uncoupled conformation of the complex. Considering constraints imposed by the structural data, we suggest a new simple hypothetical coupling mechanism for the molecular machine.
History
DepositionMar 23, 2021-
Header (metadata) releaseAug 25, 2021-
Map releaseAug 25, 2021-
UpdateAug 25, 2021-
Current statusAug 25, 2021Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 1.6
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by height
  • Surface level: 1.6
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7nyv
  • Surface level: 1.6
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_12655.png

Downloads & links

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Map

FileDownload / File: emd_12655.map.gz / Format: CCP4 / Size: 59.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.542 Å
Density
Contour LevelBy AUTHOR: 1.6 / Movie #1: 1.6
Minimum - Maximum-57.902702 - 167.77812
Average (Standard dev.)0.0007563074 (±1.0001783)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin000
Dimensions250250250
Spacing250250250
CellA=B=C: 385.5 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.5421.5421.542
M x/y/z250250250
origin x/y/z0.0000.0000.000
length x/y/z385.500385.500385.500
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ250250250
MAP C/R/S321
start NC/NR/NS000
NC/NR/NS250250250
D min/max/mean-57.903167.7780.001

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Supplemental data

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Half map: #2

Fileemd_12655_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_12655_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Respiratory complex I from Escherichia coli - conformation 3

EntireName: Respiratory complex I from Escherichia coli - conformation 3
Components
  • Complex: Respiratory complex I from Escherichia coli - conformation 3
    • Protein or peptide: NADH-quinone oxidoreductase subunit BNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit C/DNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit ENADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit FNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit GNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit INADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit KNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit JNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit ANADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit HNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit MNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit LNADH dehydrogenase (quinone)
    • Protein or peptide: NADH-quinone oxidoreductase subunit NNADH dehydrogenase (quinone)
  • Ligand: IRON/SULFUR CLUSTERIron–sulfur cluster
  • Ligand: FE2/S2 (INORGANIC) CLUSTER
  • Ligand: FLAVIN MONONUCLEOTIDE
  • Ligand: CALCIUM IONCalcium

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Supramolecule #1: Respiratory complex I from Escherichia coli - conformation 3

SupramoleculeName: Respiratory complex I from Escherichia coli - conformation 3
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#13
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI) / Location in cell: cell membrane
Molecular weightTheoretical: 550 KDa

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Macromolecule #1: NADH-quinone oxidoreductase subunit B

MacromoleculeName: NADH-quinone oxidoreductase subunit B / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 25.097809 KDa
SequenceString: MDYTLTRIDP NGENDRYPLQ KQEIVTDPLE QEVNKNVFMG KLNDMVNWGR KNSIWPYNFG LSCCYVEMVT SFTAVHDVAR FGAEVLRAS PRQADLMVVA GT(CSX)FTKMAPV IQRLYDQMLE PKWVISMGAC ANSGGMYDIY SVVQGVDKFI PVDVYIP GC PPRPEAYMQA ...String:
MDYTLTRIDP NGENDRYPLQ KQEIVTDPLE QEVNKNVFMG KLNDMVNWGR KNSIWPYNFG LSCCYVEMVT SFTAVHDVAR FGAEVLRAS PRQADLMVVA GT(CSX)FTKMAPV IQRLYDQMLE PKWVISMGAC ANSGGMYDIY SVVQGVDKFI PVDVYIP GC PPRPEAYMQA LMLLQESIGK ERRPLSWVVG DQGVYRANMQ SERERKRGER IAVTNLRTPD EI

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Macromolecule #2: NADH-quinone oxidoreductase subunit C/D

MacromoleculeName: NADH-quinone oxidoreductase subunit C/D / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: NADH:ubiquinone reductase (H+-translocating)
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 68.321945 KDa
SequenceString: MTDLTAQEPA WQTRDHLDDP VIGELRNRFG PDAFTVQATR TGVPVVWIKR EQLLEVGDFL KKLPKPYVML FDLHGMDERL RTHREGLPA ADFSVFYHLI SIDRNRDIML KVALAENDLH VPTFTKLFPN ANWYERETWD LFGITFDGHP NLRRIMMPQT W KGHPLRKD ...String:
MTDLTAQEPA WQTRDHLDDP VIGELRNRFG PDAFTVQATR TGVPVVWIKR EQLLEVGDFL KKLPKPYVML FDLHGMDERL RTHREGLPA ADFSVFYHLI SIDRNRDIML KVALAENDLH VPTFTKLFPN ANWYERETWD LFGITFDGHP NLRRIMMPQT W KGHPLRKD YPARATEFSP FELTKAKQDL EMEALTFKPE EWGMKRGTEN EDFMFLNLGP NHPSAHGAFR IVLQLDGEEI VD CVPDIGY HHRGAEKMGE RQSWHSYIPY TDRIEYLGGC VNEMPYVLAV EKLAGITVPD RVNVIRVMLS ELFRINSHLL YIS TFIQDV GAMTPVFFAF TDRQKIYDLV EAITGFRMHP AWFRIGGVAH DLPRGWDRLL REFLDWMPKR LASYEKAALQ NTIL KGRSQ GVAAYGAKEA LEWGTTGAGL RATGIDFDVR KARPYSGYEN FDFEIPVGGG VSDCYTRVML KVEELRQSLR ILEQC LNNM PEGPFKADHP LTTPPPKERT LQHIETLITH FLQVSWGPVM PANESFQMIE ATKGINSYYL TSDGSTMSYR TRVRTP SFA HLQQIPAAIR GSLVSDLIVY LGSIDFVMSD VDR

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Macromolecule #3: NADH-quinone oxidoreductase subunit E

MacromoleculeName: NADH-quinone oxidoreductase subunit E / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: NADH:ubiquinone reductase (H+-translocating)
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 18.630049 KDa
SequenceString:
MHENQQPQTE AFELSAAERE AIEHEMHHYE DPRAASIEAL KIVQKQRGWV PDGAIHAIAD VLGIPASDVE GVATFYSQIF RQPVGRHVI RYCDSVVCHI NGYQGIQAAL EKKLNIKPGQ TTFDGRFTLL PT(CSX)CLGNCDK GPNMMIDEDT HAHLTPE AI PELLERYK

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Macromolecule #4: NADH-quinone oxidoreductase subunit F

MacromoleculeName: NADH-quinone oxidoreductase subunit F / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO / EC number: NADH:ubiquinone reductase (H+-translocating)
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 49.368332 KDa
SequenceString: MKNIIRTPET HPLTWRLRDD KQPVWLDEYR SKNGYEGARK ALTGLSPDEI VNQVKDAGLK GRGGAGFSTG LKWSLMPKDE SMNIRYLLC NADEMEPGTY KDRLLMEQLP HLLVEGMLIS AFALKAYRGY IFLRGEYIEA AVNLRRAIAE ATEAGLLGKN I MGTGFDFE ...String:
MKNIIRTPET HPLTWRLRDD KQPVWLDEYR SKNGYEGARK ALTGLSPDEI VNQVKDAGLK GRGGAGFSTG LKWSLMPKDE SMNIRYLLC NADEMEPGTY KDRLLMEQLP HLLVEGMLIS AFALKAYRGY IFLRGEYIEA AVNLRRAIAE ATEAGLLGKN I MGTGFDFE LFVHTGAGRY ICGEETALIN SLEGRRANPR SKPPFPATSG AWGKPT(CSX)VNN VETLCNVPAI LANGVEWY Q NISKSKDAGT KLMGFSGRVK NPGLWELPFG TTAREILEDY AGGMRDGLKF KAWQPGGAGT DFLTEAHLDL PMEFESIGK AGSRLGTALA MAVDHEINMV SLVRNLEEFF ARESCGWCTP CRDGLPWSVK ILRALERGEG QPGDIETLEQ LCRFLGPGKT FCAHAPGAV EPLQSAIKYF REEFEAGIKQ PFSNTHLING IQPNLLKERW

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Macromolecule #5: NADH-quinone oxidoreductase subunit G

MacromoleculeName: NADH-quinone oxidoreductase subunit G / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO / EC number: NADH:ubiquinone reductase (H+-translocating)
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 100.419211 KDa
SequenceString: MATIHVDGKE YEVNGADNLL EACLSLGLDI PYFCWHPALG SVGACRQCAV KQYQNAEDTR GRLVMSCMTP ASDGTFISID DEEAKQFRE SVVEWLMTNH PHDCPVCEEG GNCHLQDMTV MTGHSFRRYR FTKRTHRNQD LGPFISHEMN RCIACYRCVR Y YKDYADGT ...String:
MATIHVDGKE YEVNGADNLL EACLSLGLDI PYFCWHPALG SVGACRQCAV KQYQNAEDTR GRLVMSCMTP ASDGTFISID DEEAKQFRE SVVEWLMTNH PHDCPVCEEG GNCHLQDMTV MTGHSFRRYR FTKRTHRNQD LGPFISHEMN RCIACYRCVR Y YKDYADGT DLGVYGAHDN VYFGRPEDGT LESEFSGNLV EICPTGVFTD KTHSERYNRK WDMQFAPSIC QQCSIGCNIS PG ERYGELR RIENRYNGTV NHYFLCDRGR FGYGYVNLKD RPRQPVQRRG DDFITLNAEQ AMQGAADILR QSKKVIGIGS PRA SVESNF ALRELVGEEN FYTGIAHGEQ ERLQLALKVL REGGIYTPAL REIESYDAVL VLGEDVTQTG ARVALAVRQA VKGK AREMA AAQKVADWQI AAILNIGQRA KHPLFVTNVD DTRLDDIAAW TYRAPVEDQA RLGFAIAHAL DNSAPAVDGI EPELQ SKID VIVQALAGAK KPLIISGTNA GSLEVIQAAA NVAKALKGRG ADVGITMIAR SVNSMGLGIM GGGSLEEALT ELETGR ADA VVVLENDLHR HASAIRVNAA LAKAPLVMVV DHQRTAIMEN AHLVLSAASF AESDGTVINN EGRAQRFFQV YDPAYYD SK TVMLESWRWL HSLHSTLLSR EVDWTQLDHV IDAVVAKIPE LAGIKDAAPD ATFRIRGQKL AREPHRYSGR TAMRANIS V HEPRQPQDID TMFTFSMEGN NQPTAHRSQV PFAWAPGWNS PQAWNKFQDE VGGKLRFGDP GVRLFETSEN GLDYFTSVP ARFQPQDGKW RIAPYYHLFG SDELSQRAPV FQSRMPQPYI KLNPADAAKL GVNAGTRVSF SYDGNTVTLP VEIAEGLTAG QVGLPMGMS GIAPVLAGAH LEDLKEAQQ

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Macromolecule #6: NADH-quinone oxidoreductase subunit I

MacromoleculeName: NADH-quinone oxidoreductase subunit I / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO / EC number: NADH:ubiquinone reductase (H+-translocating)
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 20.562771 KDa
SequenceString:
MTLKELLVGF GTQVRSIWMI GLHAFAKRET RMYPEEPVYL PPRYRGRIVL TRDPDGEERC VACNLCAVAC PVGCISLQKA ETKDGRWYP EFFRINFSRC IFCGLCEEAC PTTAIQLTPD FEMGEYKRQD LVYEKEDLLI SGPGKYPEYN FYRMAGMAID G KDKGEAEN EAKPIDVKSL LP

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Macromolecule #7: NADH-quinone oxidoreductase subunit K

MacromoleculeName: NADH-quinone oxidoreductase subunit K / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 10.852961 KDa
SequenceString:
MIPLQHGLIL AAILFVLGLT GLVIRRNLLF MLIGLEIMIN ASALAFVVAG SYWGQTDGQV MYILAISLAA AEASIGLALL LQLHRRRQN LNIDSVSEMR G

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Macromolecule #8: NADH-quinone oxidoreductase subunit J

MacromoleculeName: NADH-quinone oxidoreductase subunit J / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 19.889551 KDa
SequenceString:
MEFAFYICGL IAILATLRVI THTNPVHALL YLIISLLAIS GVFFSLGAYF AGALEIIVYA GAIMVLFVFV VMMLNLGGSE IEQERQWLK PQVWIGPAIL SAIMLVVIVY AILGVNDQGI DGTPISAKAV GITLFGPYVL AVELASMLLL AGLVVAFHVG R EERAGEVL SNRKDDSAKR KTEEHA

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Macromolecule #9: NADH-quinone oxidoreductase subunit A

MacromoleculeName: NADH-quinone oxidoreductase subunit A / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 16.474283 KDa
SequenceString:
MSMSTSTEVI AHHWAFAIFL IVAIGLCCLM LVGGWFLGGR ARARSKNVPF ESGIDSVGSA RLRLSAKFYL VAMFFVIFDV EALYLFAWS TSIRESGWVG FVEAAIFIFV LLAGLVYLVR IGALDWTPAR SRRERMNPET NSIANRQR

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Macromolecule #10: NADH-quinone oxidoreductase subunit H

MacromoleculeName: NADH-quinone oxidoreductase subunit H / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 36.240922 KDa
SequenceString: MSWISPELIE ILLTILKAVV ILLVVVTCGA FMSFGERRLL GLFQNRYGPN RVGWGGSLQL VADMIKMFFK EDWIPKFSDR VIFTLAPMI AFTSLLLAFA IVPVSPGWVV ADLNIGILFF LMMAGLAVYA VLFAGWSSNN KYSLLGAMRA SAQTLSYEVF L GLSLMGVV ...String:
MSWISPELIE ILLTILKAVV ILLVVVTCGA FMSFGERRLL GLFQNRYGPN RVGWGGSLQL VADMIKMFFK EDWIPKFSDR VIFTLAPMI AFTSLLLAFA IVPVSPGWVV ADLNIGILFF LMMAGLAVYA VLFAGWSSNN KYSLLGAMRA SAQTLSYEVF L GLSLMGVV AQAGSFNMTD IVNSQAHVWN VIPQFFGFIT FAIAGVAVCH RHPFDQPEAE QELADGYHIE YSGMKFGLFF VG EYIGIVT ISALMVTLFF GGWQGPLLPP FIWFALKTAF FMMMFILIRA SLPRPRYDQV MSFGWKICLP LTLINLLVTA AVI LWQAQ

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Macromolecule #11: NADH-quinone oxidoreductase subunit M

MacromoleculeName: NADH-quinone oxidoreductase subunit M / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 56.56009 KDa
SequenceString: MLLPWLILIP FIGGFLCWQT ERFGVKVPRW IALITMGLTL ALSLQLWLQG GYSLTQSAGI PQWQSEFDMP WIPRFGISIH LAIDGLSLL MVVLTGLLGV LAVLCSWKEI EKYQGFFHLN LMWILGGVIG VFLAIDMFLF FFFWEMMLVP MYFLIALWGH K ASDGKTRI ...String:
MLLPWLILIP FIGGFLCWQT ERFGVKVPRW IALITMGLTL ALSLQLWLQG GYSLTQSAGI PQWQSEFDMP WIPRFGISIH LAIDGLSLL MVVLTGLLGV LAVLCSWKEI EKYQGFFHLN LMWILGGVIG VFLAIDMFLF FFFWEMMLVP MYFLIALWGH K ASDGKTRI TAATKFFIYT QASGLVMLIA ILALVFVHYN ATGVWTFNYE ELLNTPMSSG VEYLLMLGFF IAFAVKMPVV PL HGWLPDA HSQAPTAGSV DLAGILLKTA AYGLLRFSLP LFPNASAEFA PIAMWLGVIG IFYGAWMAFA QTDIKRLIAY TSV SHMGFV LIAIYTGSQL AYQGAVIQMI AHGLSAAGLF ILCGQLYERI HTRDMRMMGG LWSKMKWLPA LSLFFAVATL GMPG TGNFV GEFMILFGSF QVVPVITVIS TFGLVFASVY SLAMLHRAYF GKAKSQIASQ ELPGMSLREL FMILLLVVLL VLLGF YPQP ILDTSHSAIG NIQQWFVNSV TTTRP

+
Macromolecule #12: NADH-quinone oxidoreductase subunit L

MacromoleculeName: NADH-quinone oxidoreductase subunit L / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO / EC number: ec: 1.6.5.11
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 66.513633 KDa
SequenceString: MNMLALTIIL PLIGFVLLAF SRGRWSENVS AIVGVGSVGL AALVTAFIGV DFFANGEQTY SQPLWTWMSV GDFNIGFNLV LDGLSLTML SVVTGVGFLI HMYASWYMRG EEGYSRFFAY TNLFIASMVV LVLADNLLLM YLGWEGVGLC SYLLIGFYYT D PKNGAAAM ...String:
MNMLALTIIL PLIGFVLLAF SRGRWSENVS AIVGVGSVGL AALVTAFIGV DFFANGEQTY SQPLWTWMSV GDFNIGFNLV LDGLSLTML SVVTGVGFLI HMYASWYMRG EEGYSRFFAY TNLFIASMVV LVLADNLLLM YLGWEGVGLC SYLLIGFYYT D PKNGAAAM KAFVVTRVGD VFLAFALFIL YNELGTLNFR EMVELAPAHF ADGNNMLMWA TLMLLGGAVG KSAQLPLQTW LA DAMAGPT PVSALIHAAT MVTAGVYLIA RTHGLFLMTP EVLHLVGIVG AVTLLLAGFA ALVQTDIKRV LAYSTMSQIG YMF LALGVQ AWDAAIFHLM THAFFKALLF LASGSVILAC HHEQNIFKMG GLRKSIPLVY LCFLVGGAAL SALPLVTAGF FSKD EILAG AMANGHINLM VAGLVGAFMT SLYTFRMIFI VFHGKEQIHA HAVKGVTHSL PLIVLLILST FVGALIVPPL QGVLP QTTE LAHGSMLTLE ITSGVVAVVG ILLAAWLWLG KRTLVTSIAN SAPGRLLSTW WYNAWGFDWL YDKVFVKPFL GIAWLL KRD PLNSMMNIPA VLSRFAGKGL LLSENGYLRW YVASMSIGAV VVLALLMVLR

+
Macromolecule #13: NADH-quinone oxidoreductase subunit N

MacromoleculeName: NADH-quinone oxidoreductase subunit N / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of protons; Linked to oxidoreductase reactions
Source (natural)Organism: Escherichia coli B (bacteria) / Strain: BL21(AI)
Molecular weightTheoretical: 52.072672 KDa
SequenceString: MTITPQNLIA LLPLLIVGLT VVVVMLSIAW RRNHFLNATL SVIGLNAALV SLWFVGQAGA MDVTPLMRVD GFAMLYTGLV LLASLATCT FAYPWLEGYN DNKDEFYLLV LIAALGGILL ANANHLASLF LGIELISLPL FGLVGYAFRQ KRSLEASIKY T ILSAAASS ...String:
MTITPQNLIA LLPLLIVGLT VVVVMLSIAW RRNHFLNATL SVIGLNAALV SLWFVGQAGA MDVTPLMRVD GFAMLYTGLV LLASLATCT FAYPWLEGYN DNKDEFYLLV LIAALGGILL ANANHLASLF LGIELISLPL FGLVGYAFRQ KRSLEASIKY T ILSAAASS FLLFGMALVY AQSGDLSFVA LGKNLGDGML NEPLLLAGFG LMIVGLGFKL SLVPFHLWTP DVYQGAPAPV ST FLATASK IAIFGVVMRL FLYAPVGDSE AIRVVLAIIA FASIIFGNLM ALSQTNIKRL LGYSSISHLG YLLVALIALQ TGE MSMEAV GVYLAGYLFS SLGAFGVVSL MSSPYRGPDA DSLFSYRGLF WHRPILAAVM TVMMLSLAGI PMTLGFIGKF YVLA VGVQA HLWWLVGAVV VGSAIGLYYY LRVAVSLYLH APEQPGRDAP SNWQYSAGGI VVLISALLVL VLGVWPQPLI SIVRL AMPL M

+
Macromolecule #14: IRON/SULFUR CLUSTER

MacromoleculeName: IRON/SULFUR CLUSTER / type: ligand / ID: 14 / Number of copies: 7 / Formula: SF4
Molecular weightTheoretical: 351.64 Da
Chemical component information

ChemComp-FS1:
IRON/SULFUR CLUSTER / Iron–sulfur cluster

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Macromolecule #15: FE2/S2 (INORGANIC) CLUSTER

MacromoleculeName: FE2/S2 (INORGANIC) CLUSTER / type: ligand / ID: 15 / Number of copies: 2 / Formula: FES
Molecular weightTheoretical: 175.82 Da
Chemical component information

ChemComp-FES:
FE2/S2 (INORGANIC) CLUSTER / Iron–sulfur cluster

+
Macromolecule #16: FLAVIN MONONUCLEOTIDE

MacromoleculeName: FLAVIN MONONUCLEOTIDE / type: ligand / ID: 16 / Number of copies: 1 / Formula: FMN
Molecular weightTheoretical: 456.344 Da
Chemical component information

ChemComp-FMN:
FLAVIN MONONUCLEOTIDE / Flavin mononucleotide

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Macromolecule #17: CALCIUM ION

MacromoleculeName: CALCIUM ION / type: ligand / ID: 17 / Number of copies: 1 / Formula: CA
Molecular weightTheoretical: 40.078 Da

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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

Concentration0.1 mg/mL
BufferpH: 6.8
Component:
ConcentrationFormulaName
20.0 mMC8H19NO5Bis-TrisBis-tris methane
200.0 mMNaClSodium chlorideSodium chloride
2.0 mMCaCl2Calcium chloride

Details: The buffer was used for gel filtration of protein reconstituted in lipid nanodiscs
GridModel: Quantifoil R0.6/1 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.028 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 97 % / Chamber temperature: 296 K / Instrument: GATAN CRYOPLUNGE 3

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Electron microscopy

MicroscopeJEOL CRYO ARM 300
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.55 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.9 µm / Nominal magnification: 60000
Specialist opticsEnergy filter - Name: In-column Omega Filter / Energy filter - Slit width: 20 eV
Sample stageSpecimen holder model: JEOL CRYOSPECPORTER / Cooling holder cryogen: NITROGEN
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number real images: 9122 / Average exposure time: 3.0 sec. / Average electron dose: 64.7 e/Å2

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Image processing

Particle selectionNumber selected: 1256734
CTF correctionSoftware - Name: CTFFIND (ver. 4.1)
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0)
Final 3D classificationSoftware - Name: RELION (ver. 3.1)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1)
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. 3.1), PHENIX (ver. 1.18.2)) / Number images used: 21234
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial model(PDB ID:

4hea

,

3rko

)
RefinementSpace: REAL / Protocol: FLEXIBLE FIT / Overall B value: 93 / Target criteria: Correlation coefficient
Output model

PDB-7nyv:
Respiratory complex I from Escherichia coli - conformation 3

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