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- PDB-7dz8: State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lack... -

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Basic information

Entry
Database: PDB / ID: 7dz8
TitleState transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii
Components
  • (Chlorophyll a-b binding protein, ...) x 12
  • (Photosystem I ...) x 12
  • PSI subunit V
KeywordsPHOTOSYNTHESIS / Supercomplex / state transition / green alga / Chlamydomonas reinhardtii
Function / homology
Function and homology information


photosynthesis, light harvesting in photosystem I / chloroplast thylakoid lumen / photosynthesis, light harvesting / photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / photosystem II / chlorophyll binding / chloroplast thylakoid membrane ...photosynthesis, light harvesting in photosystem I / chloroplast thylakoid lumen / photosynthesis, light harvesting / photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / photosystem II / chlorophyll binding / chloroplast thylakoid membrane / response to light stimulus / photosynthesis / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity / magnesium ion binding / metal ion binding
Similarity search - Function
Photosystem I PsaO / PsaO transmembrane domain / Photosystem I PsaH, reaction centre subunit VI / Photosystem I reaction centre subunit VI / Photosystem I reaction center subunit V / Photosystem I reaction center subunit psaK, plant / Photosystem I reaction center subunit V/PsaK, plant / Photosystem I PsaG/PsaK domain, chloroplastic / Photosystem I psaG and psaK proteins signature. / Photosystem I reaction center subunit V/PsaK ...Photosystem I PsaO / PsaO transmembrane domain / Photosystem I PsaH, reaction centre subunit VI / Photosystem I reaction centre subunit VI / Photosystem I reaction center subunit V / Photosystem I reaction center subunit psaK, plant / Photosystem I reaction center subunit V/PsaK, plant / Photosystem I PsaG/PsaK domain, chloroplastic / Photosystem I psaG and psaK proteins signature. / Photosystem I reaction center subunit V/PsaK / Photosystem I psaG / psaK / Photosystem I PsaL, reaction centre subunit XI / Photosystem I, reaction centre subunit XI / Photosystem I PsaL, reaction centre subunit XI superfamily / Photosystem I reaction centre subunit XI / Photosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII superfamily / Photosystem I PsaF, reaction centre subunit III / Photosystem I PsaF, reaction centre subunit III superfamily / Photosystem I reaction centre subunit III / Photosystem I PsaD / Photosystem I, reaction centre subunit PsaD superfamily / PsaD / Photosystem I PsaE, reaction centre subunit IV / Photosystem I PsaJ, reaction centre subunit IX superfamily / Photosystem I reaction centre subunit IV / PsaE / Photosystem I PsaJ, reaction centre subunit IX / Photosystem I reaction centre subunit IX / PsaJ / Chlorophyll A-B binding protein, plant and chromista / Chlorophyll A-B binding protein / Chlorophyll A-B binding protein / Photosystem I protein PsaC / Photosystem I PsaA / Photosystem I PsaB / Photosystem I PsaA/PsaB, conserved site / Photosystem I psaA and psaB proteins signature. / : / Photosystem I PsaA/PsaB / Photosystem I PsaA/PsaB superfamily / Photosystem I psaA/psaB protein / Electron transport accessory-like domain superfamily / 4Fe-4S dicluster domain / 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
Similarity search - Domain/homology
BETA-CAROTENE / CHLOROPHYLL B / CHLOROPHYLL A / DIGALACTOSYL DIACYL GLYCEROL (DGDG) / 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / Chem-LUT / Chem-NEX / PHYLLOQUINONE / IRON/SULFUR CLUSTER ...BETA-CAROTENE / CHLOROPHYLL B / CHLOROPHYLL A / DIGALACTOSYL DIACYL GLYCEROL (DGDG) / 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / Chem-LUT / Chem-NEX / PHYLLOQUINONE / IRON/SULFUR CLUSTER / Chem-XAT / Photosystem I reaction center subunit VIII / Chlorophyll a-b binding protein, chloroplastic / Photosystem I reaction center subunit XI, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Uncharacterized protein / Chlorophyll a-b binding protein, chloroplastic / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I reaction center subunit IV, chloroplastic / Photosystem I reaction center subunit III, chloroplastic / Photosystem I reaction center subunit VI, chloroplastic / Photosystem I reaction center subunit V, chloroplastic / Photosystem I reaction center subunit psaK, chloroplastic / Photosystem I reaction center subunit IX / Photosystem I iron-sulfur center / Chlorophyll a-b binding protein, chloroplastic / Photosystem I reaction center subunit II, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic
Similarity search - Component
Biological speciesChlamydomonas reinhardtii (plant)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.16 Å
AuthorsPan, X.W. / Li, A.J. / Liu, Z.F. / Li, M.
Funding support China, Japan, 8items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2017YFA0503702 China
Chinese Academy of SciencesXDB27020106 China
Chinese Academy of SciencesXDB37020101 China
National Natural Science Foundation of China (NSFC)31925024 China
National Natural Science Foundation of China (NSFC)31930064 China
Chinese Academy of SciencesZDBS-LY-SM003 China
Japan Society for the Promotion of Science (JSPS)16H06553 Japan
Japan Society for the Promotion of Science (JSPS)JP15H05599 Japan
CitationJournal: Nat Plants / Year: 2021
Title: Structural basis of LhcbM5-mediated state transitions in green algae.
Authors: Xiaowei Pan / Ryutaro Tokutsu / Anjie Li / Kenji Takizawa / Chihong Song / Kazuyoshi Murata / Tomohito Yamasaki / Zhenfeng Liu / Jun Minagawa / Mei Li /
Abstract: In green algae and plants, state transitions serve as a short-term light-acclimation process in the regulation of the light-harvesting capacity of photosystems I and II (PSI and PSII, respectively). ...In green algae and plants, state transitions serve as a short-term light-acclimation process in the regulation of the light-harvesting capacity of photosystems I and II (PSI and PSII, respectively). During the process, a portion of light-harvesting complex II (LHCII) is phosphorylated, dissociated from PSII and binds with PSI to form the supercomplex PSI-LHCI-LHCII. Here, we report high-resolution structures of PSI-LHCI-LHCII from Chlamydomonas reinhardtii, revealing the mechanism of assembly between the PSI-LHCI complex and two phosphorylated LHCII trimers containing all four types of LhcbM protein. Two specific LhcbM isoforms, namely LhcbM1 and LhcbM5, directly interact with the PSI core through their phosphorylated amino terminal regions. Furthermore, biochemical and functional studies on mutant strains lacking either LhcbM1 or LhcbM5 indicate that only LhcbM5 is indispensable in supercomplex formation. The results unravel the specific interactions and potential excitation energy transfer routes between green algal PSI and two phosphorylated LHCIIs.
History
DepositionJan 23, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 30, 2021Provider: repository / Type: Initial release
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Revision 2.0Jul 21, 2021Group: Data collection / Database references / Non-polymer description
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Revision 2.2Oct 9, 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
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Assembly

Deposited unit
A: Photosystem I P700 chlorophyll a apoprotein A1
B: Photosystem I P700 chlorophyll a apoprotein A2
C: Photosystem I iron-sulfur center
D: Photosystem I reaction center subunit II, chloroplastic
E: Photosystem I reaction center subunit IV, chloroplastic
F: Photosystem I reaction center subunit III, chloroplastic
G: Photosystem I reaction center subunit V, chloroplastic
H: Photosystem I reaction center subunit VI, chloroplastic
I: Photosystem I reaction center subunit VIII
J: Photosystem I reaction center subunit IX
K: Photosystem I reaction center subunit psaK, chloroplastic
L: PSI subunit V
O: Photosystem I subunit O
1: Chlorophyll a-b binding protein, chloroplastic
a: Chlorophyll a-b binding protein, chloroplastic
2: Chlorophyll a-b binding protein, chloroplastic
3: Chlorophyll a-b binding protein, chloroplastic
4: Chlorophyll a-b binding protein, chloroplastic
5: Chlorophyll a-b binding protein, chloroplastic
6: Chlorophyll a-b binding protein, chloroplastic
7: Chlorophyll a-b binding protein, chloroplastic
8: Chlorophyll a-b binding protein, chloroplastic
9: Chlorophyll a-b binding protein, chloroplastic
X: Chlorophyll a-b binding protein, chloroplastic
Y: Chlorophyll a-b binding protein, chloroplastic
Z: Chlorophyll a-b binding protein, chloroplastic
U: Chlorophyll a-b binding protein, chloroplastic
V: Chlorophyll a-b binding protein, chloroplastic
W: Chlorophyll a-b binding protein, chloroplastic
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,132,208500
Polymers750,21029
Non-polymers381,999471
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: mass spectrometry
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Photosystem I ... , 12 types, 12 molecules ABCDEFGHIJKO

#1: Protein Photosystem I P700 chlorophyll a apoprotein A1 / PSI-A / PsaA


Mass: 83239.203 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P12154, photosystem I
#2: Protein Photosystem I P700 chlorophyll a apoprotein A2 / PSI-B / PsaB


Mass: 82184.266 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P09144, photosystem I
#3: Protein Photosystem I iron-sulfur center / PsaC


Mass: 8869.325 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q00914, photosystem I
#4: Protein Photosystem I reaction center subunit II, chloroplastic / Photosystem I 20 kDa subunit / PSI-D


Mass: 21372.887 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q39615
#5: Protein Photosystem I reaction center subunit IV, chloroplastic / PSI-E / P30 protein / Photosystem I 8.1 kDa protein


Mass: 10786.395 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P12352
#6: Protein Photosystem I reaction center subunit III, chloroplastic / Light-harvesting complex I 17 kDa protein / P21 protein / PSI-F


Mass: 24088.936 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P12356
#7: Protein Photosystem I reaction center subunit V, chloroplastic / Light-harvesting complex I 10 kDa protein / P35 protein / PSI-G


Mass: 13236.007 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P14224
#8: Protein Photosystem I reaction center subunit VI, chloroplastic / PSI-H / Light-harvesting complex I 11 kDa protein / P28 protein


Mass: 14173.131 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P13352
#9: Protein Photosystem I reaction center subunit VIII / Photosystem I reaction center subunit I


Mass: 10586.388 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8IFG7
#10: Protein/peptide Photosystem I reaction center subunit IX / Photosystem I reaction center subunit J / PSI-J


Mass: 4750.509 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P59777
#11: Protein Photosystem I reaction center subunit psaK, chloroplastic / Light-harvesting complex I 8.4 kDa protein / P37 protein / PSI-K / Photosystem I subunit X


Mass: 11214.084 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P14225
#13: Protein Photosystem I subunit O


Mass: 13753.862 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8JCL6

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Protein , 1 types, 1 molecules L

#12: Protein PSI subunit V


Mass: 20300.539 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8IL32

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Chlorophyll a-b binding protein, ... , 12 types, 16 molecules 1a23456789XWYZUV

#14: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 23923.205 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q05093
#15: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 26951.219 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8IKC8
#16: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 32629.486 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8JF10
#17: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 28729.822 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q75VZ0
#18: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 28257.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q75VY8
#19: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 27812.373 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q75VY6
#20: Protein Chlorophyll a-b binding protein, chloroplastic / Lhca7


Mass: 26248.869 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q84Y02
#21: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 25948.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q75VY7
#22: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 22867.277 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8ITV3
#23: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 26675.350 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q93WE0
#24: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 27405.008 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q93WL4
#25: Protein Chlorophyll a-b binding protein, chloroplastic


Mass: 28796.824 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q9ZSJ4

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Sugars , 2 types, 8 molecules

#31: Sugar
ChemComp-LMU / DODECYL-ALPHA-D-MALTOSIDE


Type: D-saccharide / Mass: 510.615 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C24H46O11 / Comment: detergent*YM
#33: Sugar ChemComp-DGD / DIGALACTOSYL DIACYL GLYCEROL (DGDG)


Type: saccharide / Mass: 949.299 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C51H96O15

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Non-polymers , 10 types, 463 molecules

#26: Chemical...
ChemComp-CLA / CHLOROPHYLL A


Mass: 893.489 Da / Num. of mol.: 298 / Source method: obtained synthetically / Formula: C55H72MgN4O5 / Feature type: SUBJECT OF INVESTIGATION
#27: Chemical ChemComp-PQN / PHYLLOQUINONE / VITAMIN K1 / 2-METHYL-3-PHYTYL-1,4-NAPHTHOQUINONE


Mass: 450.696 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C31H46O2
#28: Chemical...
ChemComp-LHG / 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE


Mass: 722.970 Da / Num. of mol.: 27 / Source method: obtained synthetically / Formula: C38H75O10P / Comment: phospholipid*YM
#29: Chemical...
ChemComp-BCR / BETA-CAROTENE


Mass: 536.873 Da / Num. of mol.: 40 / Source method: obtained synthetically / Formula: C40H56
#30: Chemical ChemComp-SF4 / IRON/SULFUR CLUSTER


Mass: 351.640 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Fe4S4
#32: Chemical
ChemComp-LMG / 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE


Mass: 787.158 Da / Num. of mol.: 11 / Source method: obtained synthetically / Formula: C45H86O10
#34: Chemical...
ChemComp-LUT / (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL / (3R,3'R)-BETA,BETA-CAROTENE-3,3'-DIOL / LUTEIN


Mass: 568.871 Da / Num. of mol.: 22 / Source method: obtained synthetically / Formula: C40H56O2
#35: Chemical
ChemComp-XAT / (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL / VIOLAXANTHIN


Mass: 600.870 Da / Num. of mol.: 16 / Source method: obtained synthetically / Formula: C40H56O4
#36: Chemical
ChemComp-NEX / (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL / (3S,5R,6R,3'S,5'R,6'S)-5',6'-EPOXY-6,7-DIDEHYDRO- 5,6,5',6'-TETRAHYDRO-BETA,BETA-CAROTENE-3,5,3'-TRIOL / 9'-CIS-NEOXANTHIN


Mass: 600.870 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: C40H56O4
#37: Chemical...
ChemComp-CHL / CHLOROPHYLL B


Mass: 907.472 Da / Num. of mol.: 36 / Source method: obtained synthetically / Formula: C55H70MgN4O6 / Feature type: SUBJECT OF INVESTIGATION

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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: State transition complex PSI-LHCI-LHCII from green algae
Type: COMPLEX / Entity ID: #1-#25 / Source: NATURAL
Molecular weightExperimental value: YES
Source (natural)Organism: Chlamydomonas reinhardtii (plant)
Buffer solutionpH: 6.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 1.5625 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.17.1_3660: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.16 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 123997 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0173610
ELECTRON MICROSCOPYf_angle_d1.645105293
ELECTRON MICROSCOPYf_dihedral_angle_d22.86923433
ELECTRON MICROSCOPYf_chiral_restr0.2568767
ELECTRON MICROSCOPYf_plane_restr0.00914002

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