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- EMDB-36742: PSI-AcpPCI supercomplex from Symbiodinium -

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Basic information

Entry
Database: EMDB / ID: EMD-36742
TitlePSI-AcpPCI supercomplex from Symbiodinium
Map data
Sample
  • Complex: PSI-AcpPCI supercomplex from Symbiodinium
    • Protein or peptide: x 27 types
  • Ligand: x 12 types
KeywordsPhotosysrem I / Photosynthesis / Dinoflagellate
Function / homologyPhotosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII / photosystem I / photosynthesis / membrane / Uncharacterized protein / Uncharacterized protein / Uncharacterized protein / Uncharacterized protein
Function and homology information
Biological speciesSymbiodinium (eukaryote)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.99 Å
AuthorsLi ZH / Li XY / Wang WD
Funding support China, 8 items
OrganizationGrant numberCountry
Chinese Academy of Sciences2021YFA1300403 China
Chinese Academy of Sciences2019YFA0906300 China
Chinese Academy of SciencesXDA26050402 China
Chinese Academy of SciencesXDB17000000 China
Chinese Academy of Sciences2020081 China
Chinese Academy of SciencesJCTD-2020-06 China
Chinese Academy of Sciences31970260 China
Chinese Academy of Sciences32222007 China
CitationJournal: Proc Natl Acad Sci U S A / Year: 2024
Title: Structures and organizations of PSI-AcpPCI supercomplexes from red tidal and coral symbiotic photosynthetic dinoflagellates.
Authors: Xiaoyi Li / Zhenhua Li / Fangfang Wang / Songhao Zhao / Caizhe Xu / Zhiyuan Mao / Jialin Duan / Yue Feng / Yang Yang / Lili Shen / Guanglei Wang / Yanyan Yang / Long-Jiang Yu / Min Sang / ...Authors: Xiaoyi Li / Zhenhua Li / Fangfang Wang / Songhao Zhao / Caizhe Xu / Zhiyuan Mao / Jialin Duan / Yue Feng / Yang Yang / Lili Shen / Guanglei Wang / Yanyan Yang / Long-Jiang Yu / Min Sang / Guangye Han / Xuchu Wang / Tingyun Kuang / Jian-Ren Shen / Wenda Wang /
Abstract: Marine photosynthetic dinoflagellates are a group of successful phytoplankton that can form red tides in the ocean and also symbiosis with corals. These features are closely related to the ...Marine photosynthetic dinoflagellates are a group of successful phytoplankton that can form red tides in the ocean and also symbiosis with corals. These features are closely related to the photosynthetic properties of dinoflagellates. We report here three structures of photosystem I (PSI)-chlorophylls (Chls) /-peridinin protein complex (PSI-AcpPCI) from two species of dinoflagellates by single-particle cryoelectron microscopy. The crucial PsaA/B subunits of a red tidal dinoflagellate are remarkably smaller and hence losing over 20 pigment-binding sites, whereas its PsaD/F/I/J/L/M/R subunits are larger and coordinate some additional pigment sites compared to other eukaryotic photosynthetic organisms, which may compensate for the smaller PsaA/B subunits. Similar modifications are observed in a coral symbiotic dinoflagellate species, where two additional core proteins and fewer AcpPCIs are identified in the PSI-AcpPCI supercomplex. The antenna proteins AcpPCIs in dinoflagellates developed some loops and pigment sites as a result to accommodate the changed PSI core, therefore the structures of PSI-AcpPCI supercomplex of dinoflagellates reveal an unusual protein assembly pattern. A huge pigment network comprising Chls and and various carotenoids is revealed from the structural analysis, which provides the basis for our deeper understanding of the energy transfer and dissipation within the PSI-AcpPCI supercomplex, as well as the evolution of photosynthetic organisms.
History
DepositionJul 5, 2023-
Header (metadata) releaseFeb 28, 2024-
Map releaseFeb 28, 2024-
UpdateNov 13, 2024-
Current statusNov 13, 2024Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_36742.png

Downloads & links

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Map

FileDownload / File: emd_36742.map.gz / Format: CCP4 / Size: 512 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.04 Å/pix.
x 512 pix.
= 532.48 Å		1.04 Å/pix.
x 512 pix.
= 532.48 Å		1.04 Å/pix.
x 512 pix.
= 532.48 Å

Surface

Projections

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Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.04 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.235
Minimum - Maximum-0.34389928 - 1.6899729
Average (Standard dev.)0.0012676303 (±0.029884113)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions512512512
Spacing512512512
CellA=B=C: 532.48 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_36742_half_map_1.map
Projections & Slices
AxesZYX

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Half map: #1

Fileemd_36742_half_map_2.map
Projections & Slices
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Histogram (log scale)

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Sample components

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Entire : PSI-AcpPCI supercomplex from Symbiodinium

EntireName: PSI-AcpPCI supercomplex from Symbiodinium
Components
  • Complex: PSI-AcpPCI supercomplex from Symbiodinium
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-7, acpPCI-7
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-6, acpPCI-6
    • Protein or peptide: Photosystem I unk
    • Protein or peptide: Photosystem I unk
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-8, acpPCI-8
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-10, acpPCI-10
    • Protein or peptide: Photosystem I PsaC
    • Protein or peptide: Photosystem I PsaD
    • Protein or peptide: Photosystem I PsaE
    • Protein or peptide: Photosystem I PsaF
    • Protein or peptide: Photosystem I PsaR
    • Protein or peptide: Photosystem I PsaI
    • Protein or peptide: Photosystem I PsaJ
    • Protein or peptide: Photosystem I PsaL
    • Protein or peptide: Photosystem I PsaM
    • Protein or peptide: Photosystem I PsaA
    • Protein or peptide: Photosystem I PsaB
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-11, acpPCI-11
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-9, acpPCI-9
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-2, acpPCI-2
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-12, acpPCI-12
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-3, acpPCI-3
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-5, acpPCI-5
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-4, acpPCI-4
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-13, acpPCI-13
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-15, acpPCI-15
    • Protein or peptide: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-14, acpPCI-14
  • Ligand: (3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,beta-carotene-3,3'-diol
  • Ligand: [(1~{S},5~{R})-3,3,5-trimethyl-5-oxidanyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(1~{S},4~{S},6~{R})-2,2,6-trimethyl-4-oxidanyl-7-oxabicyclo[4.1.0]heptan-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenylidene]cyclohexyl] ethanoate
  • Ligand: CHLOROPHYLL A
  • Ligand: Chlorophyll c1
  • Ligand: DIGALACTOSYL DIACYL GLYCEROL (DGDG)
  • Ligand: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
  • Ligand: PERIDININ
  • Ligand: 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
  • Ligand: IRON/SULFUR CLUSTER
  • Ligand: BETA-CAROTENE
  • Ligand: PHYLLOQUINONE
  • Ligand: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE

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Supramolecule #1: PSI-AcpPCI supercomplex from Symbiodinium

SupramoleculeName: PSI-AcpPCI supercomplex from Symbiodinium / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#27
Source (natural)Organism: Symbiodinium (eukaryote)

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Macromolecule #1: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-7, acpPCI-7

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-7, acpPCI-7
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 21.839982 KDa
SequenceString: KETSASVPFL PKPKNLAGWV GGETEFDPIG FSNWFDMKWL REAELKHGRV CMMATVGFVL QPYIGAYPGV EMPADSLQAV YAAPSEAWF AFIFAAGYIE SSSYNGKITQ LNMFEDSDRV PGNLGWGSTR LEGMSKEESE LMQLKELKNG RLAMLAFSGM V HHNIVVKG ...String:
KETSASVPFL PKPKNLAGWV GGETEFDPIG FSNWFDMKWL REAELKHGRV CMMATVGFVL QPYIGAYPGV EMPADSLQAV YAAPSEAWF AFIFAAGYIE SSSYNGKITQ LNMFEDSDRV PGNLGWGSTR LEGMSKEESE LMQLKELKNG RLAMLAFSGM V HHNIVVKG ALFPLVPDGW TGPEPWAVGS IMNN(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)

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Macromolecule #2: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-6, acpPCI-6

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-6, acpPCI-6
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 19.596793 KDa
SequenceString: GGYKMSKAVP FLPMSPALEG YVGAEEEGFD PMGFSLALDI RWLREAELKH GRICMLATVG WIATDLGMRL PGPAYQVSTL EAHDAMVKF GPMAQILIWL GIIEVFSFLA ITNMMEGTTD RQPGDYGLRR LYPKDEEGQY EMQLKELRNG RLAMLAFSGI V TTAVLTGR ...String:
GGYKMSKAVP FLPMSPALEG YVGAEEEGFD PMGFSLALDI RWLREAELKH GRICMLATVG WIATDLGMRL PGPAYQVSTL EAHDAMVKF GPMAQILIWL GIIEVFSFLA ITNMMEGTTD RQPGDYGLRR LYPKDEEGQY EMQLKELRNG RLAMLAFSGI V TTAVLTGR TWPF(UNK)(UNK)(UNK)(UNK)(UNK)

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Macromolecule #3: Photosystem I unk

MacromoleculeName: Photosystem I unk / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 6.656196 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)

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Macromolecule #4: Photosystem I unk

MacromoleculeName: Photosystem I unk / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 11.166757 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)

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Macromolecule #5: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-8, acpPCI-8

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-8, acpPCI-8
type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 24.560145 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) HPKHMLVAGV RGYEMEWQPI PGDAVKYPKP NSEEMFKTM IGADVETGGE AWDPLGFHKL FDRNFDFNML PVYPHVQWLR EAEIKHGRVC MLAFIGCFAQ AGYHIGSYPV Q PDWSKALA ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) HPKHMLVAGV RGYEMEWQPI PGDAVKYPKP NSEEMFKTM IGADVETGGE AWDPLGFHKL FDRNFDFNML PVYPHVQWLR EAEIKHGRVC MLAFIGCFAQ AGYHIGSYPV Q PDWSKALA ECYASPTGAV GLFQISVLIG WIEGKNYNGD AWVGMSEKEP GDLGFDPAGF TKNPDFDLKK AQLQEIKNGR LA MVGCASI AANHFIPGSV PLLTGFY

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Macromolecule #6: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-10, acpPCI-10

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-10, acpPCI-10
type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 20.093357 KDa
SequenceString: EFAGGLIGGQ SAFASQEYNF DPLGLAEKFP EQLPFFREAE LKHGRIAMLA WVGLVVPEFV RIPGPEKCWQ ASAVDAHSAC V(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK) ...String:
EFAGGLIGGQ SAFASQEYNF DPLGLAEKFP EQLPFFREAE LKHGRIAMLA WVGLVVPEFV RIPGPEKCWQ ASAVDAHSAC V(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)GALTQVF IFCGTLEICG TWAKMNPM(UNK)(UNK) (UNK)GLTMENAGD YRLGVN FLP DEPEKVKEMK LKELKNGRLA MLAFGGAITQ ATLTGSGFPW LY

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Macromolecule #7: Photosystem I PsaC

MacromoleculeName: Photosystem I PsaC / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 9.425731 KDa
SequenceString:
SHAVKIYDTC IGCTLCVRAC PTDVLEMVPA SINAAKQVAS SPRVEDCVGC KRCETACPTD FLSIRVYLQD NEETQYSLGL DLVDWS

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Macromolecule #8: Photosystem I PsaD

MacromoleculeName: Photosystem I PsaD / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 24.878785 KDa
SequenceString: VVAEAIPRPE DLLDSPKFPM FEGSTGGYMS RSTRERHAIT WTAKGQAKFE MPTGGFAIMN QGENLCYFRK KEQCIALGKQ LRKMKIENY KIYRLKKDGT VIFMHPADGV FPEKVNKGRV QVNGRPFTIR GNPQQSELKF TKYQGKGYEA DPLTTMFVKA R VMAFADVP ...String:
VVAEAIPRPE DLLDSPKFPM FEGSTGGYMS RSTRERHAIT WTAKGQAKFE MPTGGFAIMN QGENLCYFRK KEQCIALGKQ LRKMKIENY KIYRLKKDGT VIFMHPADGV FPEKVNKGRV QVNGRPFTIR GNPQQSELKF TKYQGKGYEA DPLTTMFVKA R VMAFADVP NLFALPQPNM DELVPAEEVD KYTRQEYTTR MMEALKRVQD DRAAKAAKSL

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Macromolecule #9: Photosystem I PsaE

MacromoleculeName: Photosystem I PsaE / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 8.266334 KDa
SequenceString:
PWVGPKKGSW VKILRPESYW FQQRGQVVNV NQKPEVKYPV TVKFDSVNYA NVNTNGYALW EVIEAPAPGP GEV

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Macromolecule #10: Photosystem I PsaF

MacromoleculeName: Photosystem I PsaF / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 20.609658 KDa
SequenceString:
AKPLEMFGGV DIDLEDTPAH WTIKASPVLE PCKDNKKFHK KLKDELYKVK KNQQKFAEGS AAYARFNKKI KMIELRETAY GDRLCGKKD GLPRTIATGE WNVRGSAMWP AAIFLYIAGW IGWAGRSYLI RTNDAAKEIN IDVPLAVTCM ASGFSWPVAA W QEIVNGEM AVPNDQIHNG GPWNQS

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Macromolecule #11: Photosystem I PsaR

MacromoleculeName: Photosystem I PsaR / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 15.221271 KDa
SequenceString:
YTETVADERL FEQVYLQYTS EYLKGPLYWH PDKLQGWLPD YPGTPMIKEG KYTSHVIGNL KAFSSNELAF LSMLFFGVGL YGNLQFNFY DPQWAKVDAG GFFNVSYIVE SFLLPISFFM HIACYIQRQN GK

UniProtKB: Uncharacterized protein

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Macromolecule #12: Photosystem I PsaI

MacromoleculeName: Photosystem I PsaI / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 13.699559 KDa
SequenceString:
KYGDQRKFAA VLVPLTTLVF PAVAMGMFVL YSFQEDAFWR IVPGTKRARE LDEAWREHPL FANSKDPLDG LINPDDYEKG LEEAWERAK PAGSTVTVKD KLKQLSKQNN PHWESWRAMS

UniProtKB: Uncharacterized protein

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Macromolecule #13: Photosystem I PsaJ

MacromoleculeName: Photosystem I PsaJ / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 11.153527 KDa
SequenceString:
AETEEGLIIK PEEAGKITSR DKNNNPPRIV VKTNDWDIPE YQLSTGASNQ VSYITPVVES EDIKAWLSLN VNFFSIIILF TVGGLIEIQ RFFPDTLYW

UniProtKB: Uncharacterized protein

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Macromolecule #14: Photosystem I PsaL

MacromoleculeName: Photosystem I PsaL / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 27.708895 KDa
SequenceString: KIAYLQDIPR TIVEKDALEL ILKNTPKEQW ENPPEDSYLY TVKAFAEMYG PGKATKMGWW DYYRLKMDMP DTTRLSSERE LQEIEEYEK LMMSGKVPFA VPGPSGYFFT GFVTQWKGKE PFAGDQVITL TENGLFAKQF LSALAFYREG LKPWQRGLEI G MAHGYFLI ...String:
KIAYLQDIPR TIVEKDALEL ILKNTPKEQW ENPPEDSYLY TVKAFAEMYG PGKATKMGWW DYYRLKMDMP DTTRLSSERE LQEIEEYEK LMMSGKVPFA VPGPSGYFFT GFVTQWKGKE PFAGDQVITL TENGLFAKQF LSALAFYREG LKPWQRGLEI G MAHGYFLI GPFTSLGPLR NTPEAATVGL LCGCAIVGIV SIGGLIFGST IKPTRFDKDG DKPGAGFIEM INWHAVGGLG GA GFAHALI TVF

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Macromolecule #15: Photosystem I PsaM

MacromoleculeName: Photosystem I PsaM / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 8.527976 KDa
SequenceString:
RVPGGKRTQE LGLVIPMADE DGLTDGQVAG LFVIALVVFI SAMDLAKTMY NGINPAKFKT SKGKGYISPL VKRYIENGF

UniProtKB: Uncharacterized protein

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Macromolecule #16: Photosystem I PsaA

MacromoleculeName: Photosystem I PsaA / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 75.785336 KDa
SequenceString: IFRYINTTLW AKAGHFNKAL SKGAKTTTWI WNLHDYAHDF DIQQRSTGLI ARKVFSSNLA HLSLVFFWIS GMHLHGAYLS NYDIWLKDP KSITPSSHLA YSLIGQDILN SYTSEYFSGI TITSGFFQLY RSEGIITQSQ LKYACATSLI ATLICLSGSY L HMQLMSKF ...String:
IFRYINTTLW AKAGHFNKAL SKGAKTTTWI WNLHDYAHDF DIQQRSTGLI ARKVFSSNLA HLSLVFFWIS GMHLHGAYLS NYDIWLKDP KSITPSSHLA YSLIGQDILN SYTSEYFSGI TITSGFFQLY RSEGIITQSQ LKYACATSLI ATLICLSGSY L HMQLMSKF TSFYKKFQSL SQDHLIIIFG SRSTSLSAHQ IHKMLPANPL LDSGISKPSI LQVISNSLSY TLALFSTNLS ST GKLLNPS TRSVFLSQVA AHHKTTGVVF ITLGLIRFLT MYKSQFSILT SYIDYHIVLS INLALIASLS IIVADHLTRT PIY PHKSTS YPTILCLSIH HAWLSGFLII GSGAHASIFN LLGSPTSEIR HRDPIYSHLI WVCIAIGLHS FSLYCHNDTL EALG RPEDI FHDNSIQLKA IFAKQSFLRA ELQPDIEMLD KKIIRITQEL GTADFIVHHI HAFTIHVTLL ILSKGVLYAR NSRFV SDKL ELGFTYPCDG PGRGGTCQIS PWDHLFSAVF WMYNCLNVVT FHYFWKMQSD VWGFVSIQKH ISHYSQGDFS VNSITI NGW LRNLLWSEAS QVIQSYALSS ICPYGFIFLI GHFIWAFSLM FLFSGRAYWQ ELIESILWSH HKLKIIPHIQ PRALSIS QG RAVGFIHYTL GGIGSTWAFI ISRLLVLT

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Macromolecule #17: Photosystem I PsaB

MacromoleculeName: Photosystem I PsaB / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 74.438906 KDa
SequenceString: GRCASSRYLQ VLGSIHDIEC GFGIDNTLSL NLQIFTAHWG HLTIILIWVS SNLYHIASNA NYSLWVKNPI PSMPIAHNIW DPHFTNSTS TPYSHTIITT ILIAYSGIYN QLYTSGFNTI NQIYKTTFTF SCLAVISILL AKIHINTHSE LLHKLASHTS Q IPSFFQLL ...String:
GRCASSRYLQ VLGSIHDIEC GFGIDNTLSL NLQIFTAHWG HLTIILIWVS SNLYHIASNA NYSLWVKNPI PSMPIAHNIW DPHFTNSTS TPYSHTIITT ILIAYSGIYN QLYTSGFNTI NQIYKTTFTF SCLAVISILL AKIHINTHSE LLHKLASHTS Q IPSFFQLL YFLDVAISSV NIRFNFHTGI LVGLFSIGYT GHLLDITIPA SRAPLIHTSP SYLTFFGGLK SNTSSLYLTD IA HHHLAIG IISILTGHLY SSFRAALGTY IRDILYTSHL THSIKSLHLA LSLILASCTP LTSTTAQHIY SLTPYFYLSY DHI YSTALY VHHSYITSFL AIASHAHTAI TLVRDWVAPL EQESSSKQIR IHTHKAAIIS HLSWVSLWLG FHTLAVYSHN DTCI AFNSP SKQILIEASN GQLIQQASGK ALYGTINSIN NYNKSFDSFI HPISPGDLYV HHAIALGLHI TVLILLKGGL EARGS KLMP DKMEHSFGFS CDGPGRGGTC DISAWDSFYL ATFWMLNSNA WISFYFHYKH LTPRQFSESS TYLESWFRDY LWFNST PLI HGYSTLGAND LSVQSWSFLL THLAWASGFM FLISWRGYWQ ELIDIILYIH LKTPILINLW NGDIYTPLAL SIVQARF IG LVHFSTGLIL TYPPFIIGAT S

+
Macromolecule #18: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-11, acpPCI-11

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-11, acpPCI-11
type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 21.264883 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)VKMSPSVPY LPYPERLEGW VGGEKGFDPL RTSDIIDVYW LREAELKHGR ICMLATLGWI S VDAGWRFE AEMFQGVSVI ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)VKMSPSVPY LPYPERLEGW VGGEKGFDPL RTSDIIDVYW LREAELKHGR ICMLATLGWI S VDAGWRFE AEMFQGVSVI NAHNKMVEMG VMQQMLSIVG VCEIFSLYLI KEGLLGKIQR KAGDYFIGKN FLPKEEDKAK DM QLKELEN GRLAMLAFSG ICTQANLFPE SHFPY

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Macromolecule #19: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-9, acpPCI-9

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-9, acpPCI-9
type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 17.493844 KDa
SequenceString:
FENELGVQAP TGFFDPLGLS SDGSIDNFKR RRASEIKHGR VAMLATMGYM TPEITGKFPG YLSYSQSIKF ADVPNGLAAM SKVPVLGWA QVAAYGAVCE LSQDQSPGTP GAAGDFGF(UNK)(UNK) (UNK)(UNK)(UNK)KVITSED EETLKRKLNS E LANGRLAM MAIIGLFFQD GLTGGAY

+
Macromolecule #20: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-2, acpPCI-2

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-2, acpPCI-2
type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 19.33507 KDa
SequenceString:
FEGELGVTPP MGYFDPLGLS SDGDKKTFIR RRKSELKNGR VAMWACMGWI VPEWYRFPGE LSPSSGLKFS EIPNGMAALK ALPTEAWAQ MGAFVALLEL GPLWQDESRA PGDFKTCAKY GFPMFFVGGR EGSDSDPVKN QYSLNSEINN GRLAMMAITG M VFQNGITG TTGPEMWA

+
Macromolecule #21: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-12, acpPCI-12

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-12, acpPCI-12
type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 17.109432 KDa
SequenceString:
FESELGVQAP TGFWDPLGFA KDGSMKAFKR RRASEIKHGR IAMLATMGYI TPEITGKFPG YLSPSTLLKY DDIPNGLGAI SKVPALGWA QIFVYCGYAE LSQDQTPGSP GAEGNFGFKV LTSSDPDSLE KKLASEIANG RLAMMAFTGM ATQDGLTGSA W

+
Macromolecule #22: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-3, acpPCI-3

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-3, acpPCI-3
type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 22.912516 KDa
SequenceString: REAPKVLAGT GGPLPESFWD PAGFTNNKTD EELLFYRAAE LKHGRIAMAA VVGWFTNASG FHYLGDLWLK KPASDNPIEA FNQLSLLGV FQMVFFIGCL EWLTTVPCPP PKDAPWDVIG MSDVLEEDTD ENPMAEYKKI QMQELNNSRL AMVAIIGLIV Q ATTTG(UNK) ...String:
REAPKVLAGT GGPLPESFWD PAGFTNNKTD EELLFYRAAE LKHGRIAMAA VVGWFTNASG FHYLGDLWLK KPASDNPIEA FNQLSLLGV FQMVFFIGCL EWLTTVPCPP PKDAPWDVIG MSDVLEEDTD ENPMAEYKKI QMQELNNSRL AMVAIIGLIV Q ATTTG(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)

+
Macromolecule #23: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-5, acpPCI-5

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-5, acpPCI-5
type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 20.585494 KDa
SequenceString:
ARRELAVAYE DAGIDLMDNG KFAQGLVGAE AAFGRYEFDP IGFSKYTELV PWFREAELKH GRIAMLAWLG LVVPDFVRIP GEAYSFEAV PRVIDAHDAL NADAGPNFQI ILFISIVELC CAKKVFEWNS VETAGDYNLT RLFPEDDEAQ KQMRIAELKN G RLAMIAFG GAVTQAVITG KPFPWTF

+
Macromolecule #24: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-4, acpPCI-4

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-4, acpPCI-4
type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 19.381953 KDa
SequenceString:
FAGGLTGSDY GGFGGKYEWD PVGFSTRWPE HLAWYREAEL KHGRIAMLAF AGLLAPDLFR LPWAEFQDSS LDFANAHDKF VAG(UNK)(UNK)(UNK)(UNK)(UNK)F GPMWWGFIAC GGIEYQRFRK LGLGMEGLTL ENAGNLGWFD LPKNSEERLF Y ETAELKNG RLAMLAVSGI FTAGIFWDQH HFPFI

+
Macromolecule #25: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-13, acpPCI-13

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-13, acpPCI-13
type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 17.119342 KDa
SequenceString:
FENELGVQAP VGFWDPVGFT ADGNVASFRR RRTVELKHGR ISMLAAMGYM TPEITGKFPG YLSPSTLLKY DDIPNGLGAI SKVPALGWA QIFVYCGYAE LSQDQTPGSP GAEGNFGFKV LTSSDPDSLE KKLASEIANG RLAMMAFTGM ATQDGLTGSA W

+
Macromolecule #26: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-15, acpPCI-15

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-15, acpPCI-15
type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 17.422854 KDa
SequenceString:
ESERGAQPPF GFWDPLGLSA DGDVATFKRR RASEIKHGRI AMLAAMGYMT PEITGKFPGY LSPSTGVKYA DIPNGLAAIS KVPVVGWLQ IFAWTAVCEL WEDQVPGTPG HEGEFCFKAF KVTSDAPETR ETKLASELAN GRLAMMAIIG LFFQDGLTGS A Y

+
Macromolecule #27: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-14, acpPCI-14

MacromoleculeName: Chlorophyll a-chlorophyll c-peridinin-protein-complex I-14, acpPCI-14
type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Symbiodinium (eukaryote)
Molecular weightTheoretical: 17.355807 KDa
SequenceString:
FENELGVQAP TGFWDPLGFA KDGSMKAFKR RRASEIKHGR IAMLATMGYI TPELTGKFPG LLSPSMGLKY EDIPNGLGAI SKVPAVGWA QILAYTFYCE QSQDQSEGSA GEAGDFGFKV LTSKDEEGLK RKLNSELANG RLAMMAIIGM FFQDGLTGSA W

+
Macromolecule #28: (3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,be...

MacromoleculeName: (3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,beta-carotene-3,3'-diol
type: ligand / ID: 28 / Number of copies: 43 / Formula: DD6
Molecular weightTheoretical: 582.855 Da
Chemical component information

ChemComp-DD6:
(3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,beta-carotene-3,3'-diol

+
Macromolecule #29: [(1~{S},5~{R})-3,3,5-trimethyl-5-oxidanyl-4-[(3~{E},5~{E},7~{E},9...

MacromoleculeName: [(1~{S},5~{R})-3,3,5-trimethyl-5-oxidanyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(1~{S},4~{S},6~{R})-2,2,6-trimethyl-4-oxidanyl-7-oxabicyclo[4.1.0] ...Name: [(1~{S},5~{R})-3,3,5-trimethyl-5-oxidanyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(1~{S},4~{S},6~{R})-2,2,6-trimethyl-4-oxidanyl-7-oxabicyclo[4.1.0]heptan-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenylidene]cyclohexyl] ethanoate
type: ligand / ID: 29 / Number of copies: 9 / Formula: UIX
Molecular weightTheoretical: 642.907 Da

+
Macromolecule #30: CHLOROPHYLL A

MacromoleculeName: CHLOROPHYLL A / type: ligand / ID: 30 / Number of copies: 201 / Formula: CLA
Molecular weightTheoretical: 893.489 Da
Chemical component information

ChemComp-CLA:
CHLOROPHYLL A

+
Macromolecule #31: Chlorophyll c1

MacromoleculeName: Chlorophyll c1 / type: ligand / ID: 31 / Number of copies: 26 / Formula: KC1
Molecular weightTheoretical: 610.941 Da
Chemical component information

ChemComp-KC1:
Chlorophyll c1

+
Macromolecule #32: DIGALACTOSYL DIACYL GLYCEROL (DGDG)

MacromoleculeName: DIGALACTOSYL DIACYL GLYCEROL (DGDG) / type: ligand / ID: 32 / Number of copies: 7 / Formula: DGD
Molecular weightTheoretical: 949.299 Da
Chemical component information

ChemComp-DGD:
DIGALACTOSYL DIACYL GLYCEROL (DGDG)

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Macromolecule #33: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE

MacromoleculeName: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / type: ligand / ID: 33 / Number of copies: 9 / Formula: LMG
Molecular weightTheoretical: 787.158 Da
Chemical component information

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

+
Macromolecule #34: PERIDININ

MacromoleculeName: PERIDININ / type: ligand / ID: 34 / Number of copies: 28 / Formula: PID
Molecular weightTheoretical: 630.81 Da
Chemical component information

ChemComp-PID:
PERIDININ

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Macromolecule #35: 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL

MacromoleculeName: 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
type: ligand / ID: 35 / Number of copies: 1 / Formula: SQD
Molecular weightTheoretical: 795.116 Da
Chemical component information

ChemComp-SQD:
1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL

+
Macromolecule #36: IRON/SULFUR CLUSTER

MacromoleculeName: IRON/SULFUR CLUSTER / type: ligand / ID: 36 / Number of copies: 3 / Formula: SF4
Molecular weightTheoretical: 351.64 Da
Chemical component information

ChemComp-FS1:
IRON/SULFUR CLUSTER

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Macromolecule #37: BETA-CAROTENE

MacromoleculeName: BETA-CAROTENE / type: ligand / ID: 37 / Number of copies: 12 / Formula: BCR
Molecular weightTheoretical: 536.873 Da
Chemical component information

ChemComp-BCR:
BETA-CAROTENE

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Macromolecule #38: PHYLLOQUINONE

MacromoleculeName: PHYLLOQUINONE / type: ligand / ID: 38 / Number of copies: 2 / Formula: PQN
Molecular weightTheoretical: 450.696 Da
Chemical component information

ChemComp-PQN:
PHYLLOQUINONE

+
Macromolecule #39: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE

MacromoleculeName: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / type: ligand / ID: 39 / Number of copies: 1 / Formula: LHG
Molecular weightTheoretical: 722.97 Da
Chemical component information

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

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.99 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 46321
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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