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- EMDB-10557: Cryo- EM structure of the Thermosynechococcus elongatus photosyst... -

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Basic information

Entry
Database: EMDB / ID: EMD-10557
TitleCryo- EM structure of the Thermosynechococcus elongatus photosystem I in the presence of cytochrome c6
Map dataStructure of trimeric photosystem I from Thermosynechococcus elongatus. Asymmetric unit.
Sample
  • Complex: photosystem I
    • Protein or peptide: x 12 types
  • Ligand: x 9 types
KeywordsPhotosystem I / P700 / Cyanobacteria / PHOTOSYNTHESIS
Function / homology
Function and homology information


photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / chlorophyll binding / plasma membrane-derived thylakoid membrane / photosynthesis / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity ...photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / chlorophyll binding / plasma membrane-derived thylakoid membrane / photosynthesis / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity / magnesium ion binding / metal ion binding / membrane
Similarity search - Function
Photosystem I PsaX / Photosystem I PsaX superfamily / PsaX family / Photosystem I reaction center subunit PsaK / Photosystem I reaction centre subunit PsaK / Photosystem I PsaM, reaction centre superfamily / Photosystem I PsaM, reaction centre / Photosystem I protein M (PsaM) / Photosystem I reaction centre subunit PsaK superfamily / Photosystem I psaG and psaK proteins signature. ...Photosystem I PsaX / Photosystem I PsaX superfamily / PsaX family / Photosystem I reaction center subunit PsaK / Photosystem I reaction centre subunit PsaK / Photosystem I PsaM, reaction centre superfamily / Photosystem I PsaM, reaction centre / Photosystem I protein M (PsaM) / Photosystem I reaction centre subunit PsaK superfamily / 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 / 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
Photosystem I reaction center subunit III / Photosystem I reaction center subunit XII / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I iron-sulfur center / Photosystem I reaction center subunit II / Photosystem I reaction center subunit IV / Photosystem I reaction center subunit PsaK / Photosystem I reaction center subunit VIII / Photosystem I reaction center subunit IX ...Photosystem I reaction center subunit III / Photosystem I reaction center subunit XII / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I iron-sulfur center / Photosystem I reaction center subunit II / Photosystem I reaction center subunit IV / Photosystem I reaction center subunit PsaK / Photosystem I reaction center subunit VIII / Photosystem I reaction center subunit IX / Photosystem I reaction center subunit XI / Photosystem I 4.8K protein
Similarity search - Component
Biological speciesThermosynechococcus elongatus BP-1 (bacteria) / Thermosynechococcus elongatus (strain BP-1) (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.85 Å
AuthorsKoelsch A / Radon C
Funding support Germany, 3 items
OrganizationGrant numberCountry
German Research Foundation (DFG)EXC 2008/1 Germany
German Research Foundation (DFG)EXC 314/2 Germany
German Federal Ministry for Education and Research031B0557 A+B Germany
CitationJournal: Curr.Opin.Struct.Biol. / Year: 2020
Title: Current limits of structural biology: The transient interaction between cytochrome c6 and photosystem I
Authors: Koelsch A / Radon C / Golub M / Baumert A / Burger J / Miehlke T / Lisdat F / Feoktystov A / Pieper J / Zouni A / Wendler P
History
DepositionDec 18, 2019-
Header (metadata) releaseSep 16, 2020-
Map releaseSep 16, 2020-
UpdateOct 16, 2024-
Current statusOct 16, 2024Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.017
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.017
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6tra
  • Surface level: 0.017
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_10557.png

Downloads & links

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Map

FileDownload / File: emd_10557.map.gz / Format: CCP4 / Size: 669.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationStructure of trimeric photosystem I from Thermosynechococcus elongatus. Asymmetric unit.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.63 Å/pix.
x 560 pix.
= 351.68 Å		0.63 Å/pix.
x 560 pix.
= 351.68 Å		0.63 Å/pix.
x 560 pix.
= 351.68 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.628 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.017 / Movie #1: 0.017
Minimum - Maximum-0.049069483 - 0.071256354
Average (Standard dev.)0.000036910576 (±0.0013604629)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions560560560
Spacing560560560
CellA=B=C: 351.68002 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.6280.6280.628
M x/y/z560560560
origin x/y/z0.0000.0000.000
length x/y/z351.680351.680351.680
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS560560560
D min/max/mean-0.0490.0710.000

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Supplemental data

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Sample components

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Entire : photosystem I

EntireName: photosystem I
Components
  • Complex: photosystem I
    • Protein or peptide: Photosystem I P700 chlorophyll a apoprotein A1
    • Protein or peptide: Photosystem I P700 chlorophyll a apoprotein A2
    • Protein or peptide: Photosystem I iron-sulfur center
    • Protein or peptide: Photosystem I reaction center subunit II
    • Protein or peptide: Photosystem I reaction center subunit IV
    • Protein or peptide: Photosystem I reaction center subunit III
    • Protein or peptide: Photosystem I reaction center subunit VIII
    • Protein or peptide: Photosystem I reaction center subunit IX
    • Protein or peptide: Photosystem I reaction center subunit PsaK
    • Protein or peptide: Photosystem I reaction center subunit XI
    • Protein or peptide: Photosystem I reaction center subunit XII
    • Protein or peptide: Photosystem I 4.8K protein
  • Ligand: CHLOROPHYLL A ISOMER
  • Ligand: CHLOROPHYLL A
  • Ligand: PHYLLOQUINONE
  • Ligand: BETA-CAROTENE
  • Ligand: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
  • Ligand: IRON/SULFUR CLUSTER
  • Ligand: CALCIUM ION
  • Ligand: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
  • Ligand: water

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Supramolecule #1: photosystem I

SupramoleculeName: photosystem I / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#12
Source (natural)Organism: Thermosynechococcus elongatus BP-1 (bacteria)
Molecular weightTheoretical: 1 MDa

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Macromolecule #1: Photosystem I P700 chlorophyll a apoprotein A1

MacromoleculeName: Photosystem I P700 chlorophyll a apoprotein A1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: photosystem I
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 83.267773 KDa
SequenceString: MTISPPEREP KVRVVVDNDP VPTSFEKWAK PGHFDRTLAR GPQTTTWIWN LHALAHDFDT HTSDLEDISR KIFSAHFGHL AVVFIWLSG MYFHGAKFSN YEAWLADPTG IKPSAQVVWP IVGQGILNGD VGGGFHGIQI TSGLFQLWRA SGITNEFQLY C TAIGGLVM ...String:
MTISPPEREP KVRVVVDNDP VPTSFEKWAK PGHFDRTLAR GPQTTTWIWN LHALAHDFDT HTSDLEDISR KIFSAHFGHL AVVFIWLSG MYFHGAKFSN YEAWLADPTG IKPSAQVVWP IVGQGILNGD VGGGFHGIQI TSGLFQLWRA SGITNEFQLY C TAIGGLVM AGLMLFAGWF HYHKRAPKLE WFQNVESMLN HHLAGLLGLG SLAWAGHQIH VSLPINKLLD AGVAAKDIPL PH EFILNPS LMAELYPKVD WGFFSGVIPF FTFNWAAYSD FLTFNGGLNP VTGGLWLSDT AHHHLAIAVL FIIAGHMYRT NWG IGHSLK EILEAHKGPF TGAGHKGLYE VLTTSWHAQL AINLAMMGSL SIIVAQHMYA MPPYPYLATD YPTQLSLFTH HMWI GGFLV VGGAAHGAIF MVRDYDPAMN QNNVLDRVLR HRDAIISHLN WVCIFLGFHS FGLYVHNDTM RAFGRPQDMF SDTGI QLQP VFAQWVQNLH TLAPGGTAPN AAATASVAFG GDVVAVGGKV AMMPIVLGTA DFMVHHIHAF TIHVTVLILL KGVLFA RSS RLIPDKANLG FRFPCDGPGR GGTCQVSGWD HVFLGLFWMY NCISVVIFHF SWKMQSDVWG TVAPDGTVSH ITGGNFA QS AITINGWLRD FLWAQASQVI GSYGSALSAY GLLFLGAHFI WAFSLMFLFS GRGYWQELIE SIVWAHNKLK VAPAIQPR A LSIIQGRAVG VAHYLLGGIA TTWAFFLARI ISVG

UniProtKB: Photosystem I P700 chlorophyll a apoprotein A1

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Macromolecule #2: Photosystem I P700 chlorophyll a apoprotein A2

MacromoleculeName: Photosystem I P700 chlorophyll a apoprotein A2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: photosystem I
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 83.123648 KDa
SequenceString: MATKFPKFSQ DLAQDPTTRR IWYAIAMAHD FESHDGMTEE NLYQKIFASH FGHLAIIFLW VSGSLFHVAW QGNFEQWVQD PVNTRPIAH AIWDPQFGKA AVDAFTQAGA SNPVDIAYSG VYHWWYTIGM RTNGDLYQGA IFLLILASLA LFAGWLHLQP K FRPSLSWF ...String:
MATKFPKFSQ DLAQDPTTRR IWYAIAMAHD FESHDGMTEE NLYQKIFASH FGHLAIIFLW VSGSLFHVAW QGNFEQWVQD PVNTRPIAH AIWDPQFGKA AVDAFTQAGA SNPVDIAYSG VYHWWYTIGM RTNGDLYQGA IFLLILASLA LFAGWLHLQP K FRPSLSWF KNAESRLNHH LAGLFGVSSL AWAGHLIHVA IPESRGQHVG WDNFLSTMPH PAGLAPFFTG NWGVYAQNPD TA SHVFGTA QGAGTAILTF LGGFHPQTES LWLTDMAHHH LAIAVLFIVA GHMYRTQFGI GHSIKEMMDA KDFFGTKVEG PFN MPHQGI YETYNNSLHF QLGWHLACLG VITSLVAQHM YSLPPYAFIA QDHTTMAALY THHQYIAGFL MVGAFAHGAI FLVR DYDPA QNKGNVLDRV LQHKEAIISH LSWVSLFLGF HTLGLYVHND VVVAFGTPEK QILIEPVFAQ FIQAAHGKLL YGFDT LLSN PDSIASTAWP NYGNVWLPGW LDAINSGTNS LFLTIGPGDF LVHHAIALGL HTTTLILVKG ALDARGSKLM PDKKDF GYA FPCDGPGRGG TCDISAWDAF YLAMFWMLNT IGWVTFYWHW KHLGVWEGNV AQFNESSTYL MGWLRDYLWL NSSQLIN GY NPFGTNNLSV WAWMFLFGHL VWATGFMFLI SWRGYWQELI ETLVWAHERT PLANLVRWKD KPVALSIVQA RLVGLAHF S VGYILTYAAF LIASTAAKFG

UniProtKB: Photosystem I P700 chlorophyll a apoprotein A2

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Macromolecule #3: Photosystem I iron-sulfur center

MacromoleculeName: Photosystem I iron-sulfur center / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: photosystem I
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 8.809207 KDa
SequenceString:
MAHTVKIYDT CIGCTQCVRA CPTDVLEMVP WDGCKAGQIA SSPRTEDCVG CKRCETACPT DFLSIRVYLG AETTRSMGLA Y

UniProtKB: Photosystem I iron-sulfur center

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Macromolecule #4: Photosystem I reaction center subunit II

MacromoleculeName: Photosystem I reaction center subunit II / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 15.389494 KDa
SequenceString:
MTTLTGQPPL YGGSTGGLLS AADTEEKYAI TWTSPKEQVF EMPTAGAAVM REGENLVYFA RKEQCLALAA QQLRPRKIND YKIYRIFPD GETVLIHPKD GVFPEKVNKG REAVNSVPRS IGQNPNPSQL KFTGKKPYDP

UniProtKB: Photosystem I reaction center subunit II

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Macromolecule #5: Photosystem I reaction center subunit IV

MacromoleculeName: Photosystem I reaction center subunit IV / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 8.399485 KDa
SequenceString:
MVQRGSKVKI LRPESYWYNE VGTVASVDQT PGVKYPVIVR FDKVNYTGYS GSASGVNTNN FALHEVQEVA PPKKGK

UniProtKB: Photosystem I reaction center subunit IV

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Macromolecule #6: Photosystem I reaction center subunit III

MacromoleculeName: Photosystem I reaction center subunit III / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 15.129358 KDa
SequenceString:
DVAGLVPCKD SPAFQKRAAA AVNTTADPAS GQKRFERYSQ ALCGEDGLPH LVVDGRLSRA GDFLIPSVLF LYIAGWIGWV GRAYLIAVR NSGEANEKEI IIDVPLAIKC MLTGFAWPLA ALKELASGEL TAKDNEITVS PR

UniProtKB: Photosystem I reaction center subunit III

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Macromolecule #7: Photosystem I reaction center subunit VIII

MacromoleculeName: Photosystem I reaction center subunit VIII / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 4.325245 KDa
SequenceString:
(FME)MGSYAASFL PWIFIPVVCW LMPTVVMGLL FLYIEGEA

UniProtKB: Photosystem I reaction center subunit VIII

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Macromolecule #8: Photosystem I reaction center subunit IX

MacromoleculeName: Photosystem I reaction center subunit IX / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 4.798708 KDa
SequenceString:
(FME)KHFLTYLST APVLAAIWMT ITAGILIEFN RFYPDLLFHP L

UniProtKB: Photosystem I reaction center subunit IX

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Macromolecule #9: Photosystem I reaction center subunit PsaK

MacromoleculeName: Photosystem I reaction center subunit PsaK / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 8.483983 KDa
SequenceString:
MVLATLPDTT WTPSVGLVVI LCNLFAIALG RYAIQSRGKG PGLPIALPAL FEGFGLPELL ATTSFGHLLA AGVVSGLQYA GAL

UniProtKB: Photosystem I reaction center subunit PsaK

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Macromolecule #10: Photosystem I reaction center subunit XI

MacromoleculeName: Photosystem I reaction center subunit XI / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 16.287765 KDa
SequenceString:
MAEELVKPYN GDPFVGHLST PISDSGLVKT FIGNLPAYRQ GLSPILRGLE VGMAHGYFLI GPWVKLGPLR DSDVANLGGL ISGIALILV ATACLAAYGL VSFQKGGSSS DPLKTSEGWS QFTAGFFVGA MGSAFVAFFL LENFLVVDGI MTGLFN

UniProtKB: Photosystem I reaction center subunit XI

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Macromolecule #11: Photosystem I reaction center subunit XII

MacromoleculeName: Photosystem I reaction center subunit XII / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 3.426115 KDa
SequenceString:
MALTDTQVYV ALVIALLPAV LAFRLSTELY K

UniProtKB: Photosystem I reaction center subunit XII

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Macromolecule #12: Photosystem I 4.8K protein

MacromoleculeName: Photosystem I 4.8K protein / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Thermosynechococcus elongatus (strain BP-1) (bacteria)
Molecular weightTheoretical: 4.104939 KDa
SequenceString:
MATKSAKPTY AFRTFWAVLL LAINFLVAAY YFGILK

UniProtKB: Photosystem I 4.8K protein

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Macromolecule #13: CHLOROPHYLL A ISOMER

MacromoleculeName: CHLOROPHYLL A ISOMER / type: ligand / ID: 13 / Number of copies: 1 / Formula: CL0
Molecular weightTheoretical: 893.489 Da
Chemical component information

ChemComp-CL0:
CHLOROPHYLL A ISOMER

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Macromolecule #14: CHLOROPHYLL A

MacromoleculeName: CHLOROPHYLL A / type: ligand / ID: 14 / Number of copies: 96 / Formula: CLA
Molecular weightTheoretical: 893.489 Da
Chemical component information

ChemComp-CLA:
CHLOROPHYLL A

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Macromolecule #15: PHYLLOQUINONE

MacromoleculeName: PHYLLOQUINONE / type: ligand / ID: 15 / Number of copies: 2 / Formula: PQN
Molecular weightTheoretical: 450.696 Da
Chemical component information

ChemComp-PQN:
PHYLLOQUINONE

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Macromolecule #16: BETA-CAROTENE

MacromoleculeName: BETA-CAROTENE / type: ligand / ID: 16 / Number of copies: 24 / Formula: BCR
Molecular weightTheoretical: 536.873 Da
Chemical component information

ChemComp-BCR:
BETA-CAROTENE

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Macromolecule #17: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE

MacromoleculeName: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / type: ligand / ID: 17 / Number of copies: 5 / Formula: LHG
Molecular weightTheoretical: 722.97 Da
Chemical component information

ChemComp-LHG:
1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / phospholipid*YM

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Macromolecule #18: IRON/SULFUR CLUSTER

MacromoleculeName: IRON/SULFUR CLUSTER / type: ligand / ID: 18 / Number of copies: 3 / Formula: SF4
Molecular weightTheoretical: 351.64 Da
Chemical component information

ChemComp-FS1:
IRON/SULFUR CLUSTER

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Macromolecule #19: CALCIUM ION

MacromoleculeName: CALCIUM ION / type: ligand / ID: 19 / Number of copies: 2 / Formula: CA
Molecular weightTheoretical: 40.078 Da

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Macromolecule #20: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE

MacromoleculeName: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / type: ligand / ID: 20 / Number of copies: 1 / Formula: LMG
Molecular weightTheoretical: 787.158 Da
Chemical component information

ChemComp-LMG:
1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE

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Macromolecule #21: water

MacromoleculeName: water / type: ligand / ID: 21 / Number of copies: 217 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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

Concentration0.2 mg/mL
BufferpH: 8
Component:
ConcentrationFormulaName
0.025 mMTricineTricine
0.025 mMNaClsodium chloride
0.02 %C24H46O11n-Dodecyl beta-D-maltoside
VitrificationCryogen name: ETHANE
DetailsPhotosystem I was crosslinked with its electron donor cytochrome c6. Crosslinked particles are monodisperse.

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Electron microscopy

MicroscopeFEI POLARA 300
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 32.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0) / Number images used: 175999
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

1jb0


Chain - Source name: PDB / Chain - Initial model type: experimental model
Output model

PDB-6tra:
Cryo- EM structure of the Thermosynechococcus elongatus photosystem I in the presence of cytochrome c6

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