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- PDB-8bef: Cryo-EM structure of the Arabidopsis thaliana I+III2 supercomplex... -

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Entry
Database: PDB / ID: 8bef
TitleCryo-EM structure of the Arabidopsis thaliana I+III2 supercomplex (CI membrane core)
Components
  • (Gamma carbonic anhydrase ...) x 2
  • (NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ...) x 3
  • (NADH-ubiquinone oxidoreductase chain ...) x 7
  • (Uncharacterized protein ...) x 2
  • AT3G07480.1
  • At2g46540/F11C10.23
  • At4g16450
  • Excitatory amino acid transporter
  • Gamma carbonic anhydrase-like 2, mitochondrial
  • NADH dehydrogenase [ubiquinone] iron-sulfur protein 5-B
  • Outer envelope pore protein 16-3, chloroplastic/mitochondrial
  • P1
KeywordsMEMBRANE PROTEIN / Plant / Mitochondria / Complex
Function / homology
Function and homology information


plastid outer membrane / TIM22 mitochondrial import inner membrane insertion complex / anther dehiscence / vegetative to reproductive phase transition of meristem / chloroplast outer membrane / P450-containing electron transport chain / Lyases; Carbon-oxygen lyases; Hydro-lyases / NADH dehydrogenase complex / photorespiration / response to abscisic acid ...plastid outer membrane / TIM22 mitochondrial import inner membrane insertion complex / anther dehiscence / vegetative to reproductive phase transition of meristem / chloroplast outer membrane / P450-containing electron transport chain / Lyases; Carbon-oxygen lyases; Hydro-lyases / NADH dehydrogenase complex / photorespiration / response to abscisic acid / protein insertion into mitochondrial inner membrane / embryo development ending in seed dormancy / plant-type vacuole / regulation of reactive oxygen species metabolic process / porin activity / plastid / ubiquinone binding / pore complex / protein homotrimerization / NADH:ubiquinone reductase (H+-translocating) / NADH dehydrogenase activity / respiratory chain complex I / : / mitochondrial electron transport, NADH to ubiquinone / electron transport coupled proton transport / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / : / monoatomic ion transport / response to salt stress / aerobic respiration / chloroplast / carbonate dehydratase activity / mitochondrial membrane / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / peroxisome / mitochondrial outer membrane / mitochondrial inner membrane / copper ion binding / nucleolus / protein homodimerization activity / mitochondrion / extracellular region / identical protein binding / nucleus / metal ion binding / plasma membrane / cytosol
Similarity search - Function
Mitochondrial import inner membrane translocase subunit TIM22 / NADH-ubiquinone oxidoreductase 11kDa subunit / NADH-ubiquinone oxidoreductase 11 kDa subunit / At2g27730-like / : / : / : / NADH-ubiquinone oxidoreductase, 21kDa subunit, N-terminal / NADH-ubiquinone oxidoreductase complex I, 21 kDa subunit / Adrenodoxin ...Mitochondrial import inner membrane translocase subunit TIM22 / NADH-ubiquinone oxidoreductase 11kDa subunit / NADH-ubiquinone oxidoreductase 11 kDa subunit / At2g27730-like / : / : / : / NADH-ubiquinone oxidoreductase, 21kDa subunit, N-terminal / NADH-ubiquinone oxidoreductase complex I, 21 kDa subunit / Adrenodoxin / NAD(P)H-quinone oxidoreductase subunit 3, bacterial/plastid / NAD(P)H-quinone oxidoreductase, subunit N/subunit 2 / Hexapeptide repeat / Tim17/Tim22/Tim23/Pmp24 family / Bacterial transferase hexapeptide (six repeats) / NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex subunit 1 / NADH-ubiquinone oxidoreductase MWFE subunit / NADH dehydrogenase subunit 5, C-terminal / NADH dehydrogenase subunit 5 C-terminus / NADH:ubiquinone oxidoreductase, NDUFS5-15kDa / GRIM-19 / GRIM-19 protein / NADH:ubiquinone oxidoreductase, iron-sulphur subunit 5 / NADH-ubiquinone/plastoquinone oxidoreductase chain 6, subunit NuoJ / NADH:ubiquinone/plastoquinone oxidoreductase, chain 6 / Trimeric LpxA-like superfamily / NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex, subunit 8 / NADH-ubiquinone/plastoquinone oxidoreductase chain 6 / NADH-plastoquinone oxidoreductase, chain 5 subgroup / NADH-quinone oxidoreductase, chain M/4 / NADH-ubiquinone oxidoreductase chain 4L/K / NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminal / NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminus / NADH-quinone oxidoreductase, chain 5-like / NADH-ubiquinone oxidoreductase chain 4L/Mnh complex subunit C1-like / NADH-ubiquinone/plastoquinone oxidoreductase chain 4L / NADH:ubiquinone oxidoreductase / NADH:quinone oxidoreductase/Mrp antiporter, membrane subunit / Proton-conducting membrane transporter / NADH:ubiquinone/plastoquinone oxidoreductase, chain 3 / NADH:ubiquinone oxidoreductase, subunit 3 superfamily / NADH-ubiquinone/plastoquinone oxidoreductase, chain 3 / 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 / CHCH / CHCH domain / Coiled coil-helix-coiled coil-helix (CHCH) domain profile. / Beta-grasp domain superfamily / 2Fe-2S ferredoxin-like superfamily
Similarity search - Domain/homology
1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE / Butyryl Coenzyme A / CARDIOLIPIN / : / Chem-PC7 / Chem-PGT / PHOSPHATIDYLETHANOLAMINE / Chem-Q7G / Chem-UQ5 / Ubiquinone-9 ...1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE / Butyryl Coenzyme A / CARDIOLIPIN / : / Chem-PC7 / Chem-PGT / PHOSPHATIDYLETHANOLAMINE / Chem-Q7G / Chem-UQ5 / Ubiquinone-9 / (thale cress) hypothetical protein / NADH-ubiquinone oxidoreductase chain 6 / (thale cress) hypothetical protein / NADH-ubiquinone oxidoreductase chain 1 / NADH-ubiquinone oxidoreductase chain 5 / NADH-ubiquinone oxidoreductase chain 2 / Outer envelope pore protein 16-3, chloroplastic/mitochondrial / NADH-ubiquinone oxidoreductase chain 3 / NADH-ubiquinone oxidoreductase chain 4 / NADH-ubiquinone oxidoreductase chain 4L / At4g16450 / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8-B / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13-A / Uncharacterized protein At1g67785 / Excitatory amino acid transporter / Gamma carbonic anhydrase 2, mitochondrial / NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1 / Gamma carbonic anhydrase 1, mitochondrial / NADH dehydrogenase [ubiquinone] iron-sulfur protein 5-B / Gamma carbonic anhydrase-like 2, mitochondrial / At2g46540/F11C10.23 / Uncharacterized protein At2g27730, mitochondrial
Similarity search - Component
Biological speciesArabidopsis thaliana (thale cress)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.13 Å
AuthorsKlusch, N. / Kuehlbrandt, W.
Funding support Germany, 1items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: Nat Plants / Year: 2023
Title: Cryo-EM structure of the respiratory I + III supercomplex from Arabidopsis thaliana at 2 Å resolution.
Authors: Niklas Klusch / Maximilian Dreimann / Jennifer Senkler / Nils Rugen / Werner Kühlbrandt / Hans-Peter Braun /
Abstract: Protein complexes of the mitochondrial respiratory chain assemble into respiratory supercomplexes. Here we present the high-resolution electron cryo-microscopy structure of the Arabidopsis ...Protein complexes of the mitochondrial respiratory chain assemble into respiratory supercomplexes. Here we present the high-resolution electron cryo-microscopy structure of the Arabidopsis respiratory supercomplex consisting of complex I and a complex III dimer, with a total of 68 protein subunits and numerous bound cofactors. A complex I-ferredoxin, subunit B14.7 and P9, a newly defined subunit of plant complex I, mediate supercomplex formation. The component complexes stabilize one another, enabling new detailed insights into their structure. We describe (1) an interrupted aqueous passage for proton translocation in the membrane arm of complex I; (2) a new coenzyme A within the carbonic anhydrase module of plant complex I defining a second catalytic centre; and (3) the water structure at the proton exit pathway of complex III with a co-purified ubiquinone in the Q site. We propose that the main role of the plant supercomplex is to stabilize its components in the membrane.
History
DepositionOct 21, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 11, 2023Provider: repository / Type: Initial release
Revision 1.1Feb 1, 2023Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.year
Revision 1.2Oct 23, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: NADH-ubiquinone oxidoreductase chain 3
H: NADH-ubiquinone oxidoreductase chain 1
J: NADH-ubiquinone oxidoreductase chain 6
K: NADH-ubiquinone oxidoreductase chain 4L
L: NADH-ubiquinone oxidoreductase chain 5
M: NADH-ubiquinone oxidoreductase chain 4
N: NADH-ubiquinone oxidoreductase chain 2
O: AT3G07480.1
X: NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8-B
Y: Outer envelope pore protein 16-3, chloroplastic/mitochondrial
Z: NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13-A
a: NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1
b: At2g46540/F11C10.23
d: Excitatory amino acid transporter
e: NADH dehydrogenase [ubiquinone] iron-sulfur protein 5-B
f: At4g16450
i: P1
u: Uncharacterized protein At1g67785
v: Uncharacterized protein At2g27730, mitochondrial
x: Gamma carbonic anhydrase-like 2, mitochondrial
y: Gamma carbonic anhydrase 2, mitochondrial
z: Gamma carbonic anhydrase 1, mitochondrial
hetero molecules


Theoretical massNumber of molelcules
Total (without water)522,38653
Polymers497,72522
Non-polymers24,66131
Water23,1311284
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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NADH-ubiquinone oxidoreductase chain ... , 7 types, 7 molecules AHJKLMN

#1: Protein NADH-ubiquinone oxidoreductase chain 3 / NADH dehydrogenase subunit 3


Mass: 13969.396 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: P92533, NADH:ubiquinone reductase (H+-translocating)
#2: Protein NADH-ubiquinone oxidoreductase chain 1


Mass: 36020.070 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: B5TM92, NADH:ubiquinone reductase (H+-translocating)
#3: Protein NADH-ubiquinone oxidoreductase chain 6


Mass: 23690.385 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: A0A2P2CLG1, NADH:ubiquinone reductase (H+-translocating)
#4: Protein NADH-ubiquinone oxidoreductase chain 4L / NADH dehydrogenase subunit 4L


Mass: 11193.559 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: Q04614, NADH:ubiquinone reductase (H+-translocating)
#5: Protein NADH-ubiquinone oxidoreductase chain 5


Mass: 74497.977 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: B5TM94, NADH:ubiquinone reductase (H+-translocating)
#6: Protein NADH-ubiquinone oxidoreductase chain 4 / NADH dehydrogenase subunit 4


Mass: 55995.664 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: P93313, NADH:ubiquinone reductase (H+-translocating)
#7: Protein NADH-ubiquinone oxidoreductase chain 2 / NADH dehydrogenase subunit 2


Mass: 55486.836 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: O05000, NADH:ubiquinone reductase (H+-translocating)

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Protein , 8 types, 8 molecules OYbdefix

#8: Protein AT3G07480.1


Mass: 17626.197 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: A0A384LA38
#10: Protein Outer envelope pore protein 16-3, chloroplastic/mitochondrial / Chloroplastic outer envelope pore protein of 16 kDa 3 / AtOEP16-3 / OEP16-3 / Mitochondrial complex ...Chloroplastic outer envelope pore protein of 16 kDa 3 / AtOEP16-3 / OEP16-3 / Mitochondrial complex I subunit B14.7


Mass: 17017.348 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: O48528
#13: Protein At2g46540/F11C10.23 / Expressed protein / F11C10.23/F11C10.23 / Fiber


Mass: 6810.177 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9ZPY5
#14: Protein Excitatory amino acid transporter


Mass: 9220.749 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q94AL6
#15: Protein NADH dehydrogenase [ubiquinone] iron-sulfur protein 5-B


Mass: 9914.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9LZI6
#16: Protein At4g16450 / NADH-ubiquinone oxidoreductase / Uncharacterized protein At4g16450


Mass: 11383.019 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q84W12
#17: Protein P1


Mass: 11808.244 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: A0A178W1I8
#20: Protein Gamma carbonic anhydrase-like 2, mitochondrial / GAMMA CAL2


Mass: 27985.113 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9SMN1

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NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 3 types, 3 molecules XZa

#9: Protein NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8-B


Mass: 11985.954 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q8LGE7
#11: Protein NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13-A / Protein MATERNAL EFFECT EMBRYO ARREST 4


Mass: 16145.584 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q8RWA7
#12: Protein NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1


Mass: 7349.628 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9C9Z5

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Uncharacterized protein ... , 2 types, 2 molecules uv

#18: Protein Uncharacterized protein At1g67785


Mass: 7546.790 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q8VZ65
#19: Protein Uncharacterized protein At2g27730, mitochondrial


Mass: 11965.520 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9ZUX4

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Gamma carbonic anhydrase ... , 2 types, 2 molecules yz

#21: Protein Gamma carbonic anhydrase 2, mitochondrial / GAMMA CA2 / Transcription factor APFI


Mass: 30102.207 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: Q9C6B3, Lyases; Carbon-oxygen lyases; Hydro-lyases
#22: Protein Gamma carbonic anhydrase 1, mitochondrial / GAMMA CA1


Mass: 30010.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress)
References: UniProt: Q9FWR5, Lyases; Carbon-oxygen lyases; Hydro-lyases

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Non-polymers , 12 types, 1315 molecules

#23: Chemical
ChemComp-PGT / (1S)-2-{[{[(2R)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL STEARATE / PHOSPHATIDYLGLYCEROL / 1-PALMITOYL-2-OLEOYL-SN-GLYCERO-3-[PHOSPHO-RAC-(1-GLYCEROL)](SODIUM SALT)


Mass: 751.023 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C40H79O10P / Feature type: SUBJECT OF INVESTIGATION / Comment: phospholipid*YM
#24: Chemical ChemComp-UQ9 / Ubiquinone-9 / 2,3-dimethoxy-5-methyl-6-[(2E,6E,10E,14Z,18E,22E,26E,30Z)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18 ,22,26,30,34-nonaen-1-yl]cyclohexa-2,5-diene-1,4-dione


Mass: 795.226 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C54H82O4 / Feature type: SUBJECT OF INVESTIGATION
#25: Chemical
ChemComp-PTY / PHOSPHATIDYLETHANOLAMINE


Mass: 734.039 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: C40H80NO8P / Feature type: SUBJECT OF INVESTIGATION / Comment: phospholipid*YM
#26: Chemical
ChemComp-Q7G / 2-{[(4-O-alpha-D-glucopyranosyl-alpha-D-glucopyranosyl)oxy]methyl}-4-{[(3beta,9beta,14beta,17beta,25R)-spirost-5-en-3-yl]oxy}butyl 4-O-alpha-D-glucopyranosyl-alpha-D-glucopyranoside


Mass: 1165.315 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C56H92O25 / Feature type: SUBJECT OF INVESTIGATION
#27: Chemical ChemComp-FE / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe / Feature type: SUBJECT OF INVESTIGATION
#28: Chemical ChemComp-UQ5 / 2,3-DIMETHOXY-5-METHYL-6-(3,11,15,19-TETRAMETHYL-EICOSA-2,6,10,14,18-PENTAENYL)-[1,4]BENZOQUINONE


Mass: 522.758 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H50O4 / Feature type: SUBJECT OF INVESTIGATION
#29: Chemical ChemComp-PC7 / (7S)-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5,8-TRIOXA-4-PHOSPHAHEXACOSAN-1-AMINIUM 4-OXIDE / PHOSPHATIDYLCHOLINE / 1-PALMITOYL-2-STEAROYL-PC


Mass: 763.100 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C42H85NO8P / Feature type: SUBJECT OF INVESTIGATION / Comment: phospholipid*YM
#30: Chemical ChemComp-3PH / 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE / PHOSPHATIDIC ACID


Mass: 704.998 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C39H77O8P / Feature type: SUBJECT OF INVESTIGATION
#31: Chemical ChemComp-CDL / CARDIOLIPIN / DIPHOSPHATIDYL GLYCEROL / BIS-(1,2-DIACYL-SN-GLYCERO-3-PHOSPHO)-1',3'-SN-GLYCEROL


Mass: 1464.043 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C81H156O17P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: phospholipid*YM
#32: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
#33: Chemical ChemComp-BCO / Butyryl Coenzyme A / S-{(3S,5S,9R)-1-[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]-3,5,9-trihydroxy-8,8-dimethyl-3,5-dioxido-10,14-dioxo-2,4,6-trioxa-11,15-diaza-3lambda~5~,5lambda~5~-diphosphaheptadecan-17-yl} butanethioate (non-preferred name)


Mass: 837.624 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C25H42N7O17P3S / Feature type: SUBJECT OF INVESTIGATION
#34: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1284 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Mitochondrial Arabidopsis thaliana I+III2 supercomplex (CI membrane core)
Type: COMPLEX / Entity ID: #1-#22 / Source: NATURAL
Source (natural)Organism: Arabidopsis t (thale cress)
Buffer solutionpH: 7.4
SpecimenConc.: 0.18 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 70 % / Chamber temperature: 283.15 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 215000 X / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.20.1_4487: / Classification: refinement
EM software
IDNameVersionCategory
5CTFFIND4.1.13CTF correction
8Coot0.9.5model fitting
9RELION3.1.3initial Euler assignment
10RELION3.1.3classification
11RELION3.1.33D reconstruction
12PHENIX1.20.1-4487model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1215138
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 2.13 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 213993 / Symmetry type: POINT
Atomic model buildingSpace: REAL
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 9.89 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00427087
ELECTRON MICROSCOPYf_angle_d0.68436518
ELECTRON MICROSCOPYf_dihedral_angle_d12.9054416
ELECTRON MICROSCOPYf_chiral_restr0.0454081
ELECTRON MICROSCOPYf_plane_restr0.0054373

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