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- EMDB-37642: The structure of PSI-CAC(L-14)of R.salina at 2.7 angstroms resolution -

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Basic information

Entry
Database: EMDB / ID: EMD-37642
TitleThe structure of PSI-CAC(L-14)of R.salina at 2.7 angstroms resolution
Map data
Sample
  • Complex: PSI-CAC
    • Protein or peptide: x 27 types
  • Ligand: x 13 types
Keywordsthylakoid membrane / chlorophyll plastid / photosynthesis / oxyphototroph
Function / homology
Function and homology information


photosystem I reaction center / photosystem I / photosystem I / chlorophyll binding / photosynthetic electron transport in photosystem I / chloroplast thylakoid membrane / photosynthesis / 4 iron, 4 sulfur cluster binding / oxidoreductase activity / electron transfer activity ...photosystem I reaction center / photosystem I / photosystem I / chlorophyll binding / photosynthetic electron transport in photosystem I / chloroplast thylakoid membrane / photosynthesis / 4 iron, 4 sulfur cluster binding / oxidoreductase activity / electron transfer activity / magnesium ion binding / metal ion binding
Similarity search - Function
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 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 PsaJ, reaction centre subunit IX / Photosystem I PsaJ, reaction centre subunit IX superfamily / Photosystem I reaction centre subunit IX / PsaJ / Photosystem I PsaE, reaction centre subunit IV / Photosystem I reaction centre subunit IV / PsaE / 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 iron-sulfur center / Photosystem I reaction center subunit PsaK / Photosystem I reaction center subunit XII / Photosystem I reaction center subunit IX / Photosystem I reaction center subunit III / Photosystem I reaction center subunit VIII / Photosystem I reaction center subunit XI / Photosystem I reaction center subunit II / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I reaction center subunit IV
Similarity search - Component
Biological speciesRhodomonas salina (eukaryote)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.7 Å
AuthorsZhang SM / Si L / Li M
Funding support China, 2 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
National Basic Research Program of China (973 Program) China
CitationJournal: Commun Biol / Year: 2024
Title: Growth phase-dependent reorganization of cryptophyte photosystem I antennae.
Authors: Shumeng Zhang / Long Si / Xiaodong Su / Xuelin Zhao / Xiaomin An / Mei Li /
Abstract: Photosynthetic cryptophytes are eukaryotic algae that utilize membrane-embedded chlorophyll a/c binding proteins (CACs) and lumen-localized phycobiliproteins (PBPs) as their light-harvesting antennae. ...Photosynthetic cryptophytes are eukaryotic algae that utilize membrane-embedded chlorophyll a/c binding proteins (CACs) and lumen-localized phycobiliproteins (PBPs) as their light-harvesting antennae. Cryptophytes go through logarithmic and stationary growth phases, and may adjust their light-harvesting capability according to their particular growth state. How cryptophytes change the type/arrangement of the photosynthetic antenna proteins to regulate their light-harvesting remains unknown. Here we solve four structures of cryptophyte photosystem I (PSI) bound with CACs that show the rearrangement of CACs at different growth phases. We identify a cryptophyte-unique protein, PsaQ, which harbors two chlorophyll molecules. PsaQ specifically binds to the lumenal region of PSI during logarithmic growth phase and may assist the association of PBPs with photosystems and energy transfer from PBPs to photosystems.
History
DepositionOct 3, 2023-
Header (metadata) releaseMay 29, 2024-
Map releaseMay 29, 2024-
UpdateMay 29, 2024-
Current statusMay 29, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_37642.png

Downloads & links

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Map

FileDownload / File: emd_37642.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.04 Å
Density
Contour LevelBy AUTHOR: 0.032
Minimum - Maximum-0.15823898 - 0.29602015
Average (Standard dev.)0.00036753505 (±0.0069383183)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 374.4 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_37642_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_37642_half_map_2.map
Projections & Slices
AxesZYX

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Histogram

Histogram (log scale)

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Sample components

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Entire : PSI-CAC

EntireName: PSI-CAC
Components
  • Complex: PSI-CAC
    • 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 XI
    • Protein or peptide: Photosystem I reaction center subunit XII
    • Protein or peptide: PsaO
    • Protein or peptide: Photosystem I reaction center subunit PsaK
    • Protein or peptide: chain s
    • Protein or peptide: cac-c
    • Protein or peptide: cac-a
    • Protein or peptide: cac-b
    • Protein or peptide: cac-h
    • Protein or peptide: cac-e
    • Protein or peptide: cac-l
    • Protein or peptide: cac-k
    • Protein or peptide: cac-f
    • Protein or peptide: cac-i
    • Protein or peptide: cac-d
    • Protein or peptide: cac-g
    • Protein or peptide: PsaR
    • Protein or peptide: cac-n
    • Protein or peptide: PsaQ
  • Ligand: CHLOROPHYLL A
  • Ligand: PHYLLOQUINONE
  • Ligand: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
  • Ligand: 1,3,3-trimethyl-2-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-[(1R)-2,6,6-trimethylcyclohex-2-en-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohexene
  • Ligand: DODECYL-BETA-D-MALTOSIDE
  • Ligand: IRON/SULFUR CLUSTER
  • Ligand: DIGALACTOSYL DIACYL GLYCEROL (DGDG)
  • Ligand: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
  • Ligand: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E})-3,7,12,16-tetramethyl-18-[(4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-1,17-diynyl]cyclohex-3-en-1-ol
  • Ligand: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol
  • Ligand: Chlorophyll c2
  • Ligand: DODECYL-ALPHA-D-MALTOSIDE
  • Ligand: water

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Supramolecule #1: PSI-CAC

SupramoleculeName: PSI-CAC / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#17, #19-#21, #18, #22-#27
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 800 KDa

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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
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 83.431523 KDa
SequenceString: MTISSKEQEA KKVSITVDRD PVATSFEKWA QPGHFSRTLA KGPKTTTWIW NLHADVHDFD SHTNSLEDIS RKIFSAHFGQ LSIIFLWLS GMYFHGARFS NYSAWLSNPT AVKPSAQVVW PIVGQEVLNG DVGGGFQGVQ VTSGFFQIWR SSGITSEVEL Y WCALAGLI ...String:
MTISSKEQEA KKVSITVDRD PVATSFEKWA QPGHFSRTLA KGPKTTTWIW NLHADVHDFD SHTNSLEDIS RKIFSAHFGQ LSIIFLWLS GMYFHGARFS NYSAWLSNPT AVKPSAQVVW PIVGQEVLNG DVGGGFQGVQ VTSGFFQIWR SSGITSEVEL Y WCALAGLI MSGLMIFAGW FHYHKAAPKL EWFQNAESML NHHLSGLLGL GCLSWAGHQI HVSLPVNKLL DAGVAPQEIP LP HEFLVNR DLMAQLYPSF SKGLVPFFTL NWSEYSDFLT FKGGLNPVTG GLWLSDTAHH HLALAVLFIV AGHMYRTNWG IGH SMKEIL EAHKGPFTGE GHKGLYEILT TSWHAQLAIN LAMLGSVSII VAHHMYAMPP YPYIATDYPT QLSIFTHHMW IGGF CVCGG AAHAGIFMVR DYNPAQNYNN LLDRVIRHRD AIISHLNWIC IFLGFHSFGL YIHNDTMRAL GRTQDMFSDT AIQLK PVFA QWVQSIHTLA PGNTTPNALA TASYAFGGDV VAVGNKVAMM PISLGTADFM VHHIHAFTIH VTVLILLKGV LFSRNS RLI PDKANLGFRF PCDGPGRGGT CQSSAWDSVF LGLFWMYNCI SVVIFHFSWK MQSDVWGTVQ SDGTVTHITG GNFAQSA IT INGWLRDFLW AQASQVIQSY GSALSAYGLI FLGAHFIWAF SLMFLFSGRG YWQELIESIV WAHNKLNVAP AIQPRALS I TQGRAVGLAH YLLGGIGTTW AFFLARIISV G

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
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 82.069711 KDa
SequenceString: MATKFPKFSQ ALAQDPATRR IWYGLATAHD LESHDGMTEE NLYQKIFASH FGHLAVIFLW TSGNLFHVAW QGNFEQWVLN PLKVKPIAH AIWDPHFGQP AVKAFTKGGV SYPVNIATSG VYHWWYTIGM RSNTDLYAGS LFLLFLAGVF LFAGWLHLQP K FRPGLSWF ...String:
MATKFPKFSQ ALAQDPATRR IWYGLATAHD LESHDGMTEE NLYQKIFASH FGHLAVIFLW TSGNLFHVAW QGNFEQWVLN PLKVKPIAH AIWDPHFGQP AVKAFTKGGV SYPVNIATSG VYHWWYTIGM RSNTDLYAGS LFLLFLAGVF LFAGWLHLQP K FRPGLSWF KNNESRLNHH LSGLFGFSSL AWSAHLIHVA IPEARGQHVC WDNFTKVAPH PAGLQPFFTG NWGAYAASPD TT NHIFGTS EGAGTAILTF LGGFHPQTQA LWLTDIAHHH LAIGVVFIFA GHMYRTNWGI GHSLKEILDA HRPPGGRLGA GHK GIFETL TNSLHFQLGL ALASLGVITS LVAQHMYALP SYAFIAKDYV TQSALYTHHQ YIAGFLMVGA FAHGAIFFVR DYDP EQNKN NVLARILDHK EAIISHLSWV SLFLGFHTLG IYVHNDVVVA FGTPEKQILV EPVFAQWIQA SSGKALYGFD VLLSS TNSV AANASSNIWL PGWLEAINSG KNSLFLPIGP GDFLIHHAIA LALHTTTLIL VKGALDARGS KLMPDKKDFG YAFPCD GPG RGGTCDISAW DAFYLSMFWM LNTIGWVTFY WHWKHITIWQ GNAGQFNESS TYIMGWLRDY LWLNSSPLIN GYNPFGM NS LSVWSWMFLF GHLIWATGFM FLISWRGYWQ ELIETLVWAH ERTPLANLVR WKDKPVALSI VQARLVGLIH FTAGYIFT Y AAFVIASTTG KFG

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
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 8.759131 KDa
SequenceString:
MSHSVKVYDT CIGCTQCVRA CPCDVLEMVS WDGCKAGQIA SAPRTEDCIG CKRCETACPT DFLSVRVYLG GETTRSMGLA 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: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 15.585724 KDa
SequenceString:
MAETLNLQIP SPTFEGSTGG WLRAAEVEEK YAITWTSPKE QVFEMPTGGA AIMRQGENLL YLARKEQCLA LATQVKNSFK ITDYKVYRI FPSGEVQYLH PKDGVFPEKV NAGRVGVGNV SHSIGKNLNP AQIKFTSKSF NG

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: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 7.309363 KDa
SequenceString:
MVKRGSKVRI LRKESYWYQD IGTVATIDTS GIRYPVVVRF EKVSYSGVNT NNFSLDEVVE VVAK

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: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 20.817162 KDa
SequenceString:
MEIFFVKNWV SMLLVCSFLA FPSLAKADVA GLTPCGESKE FARRLDGSVK KLQTRLSKYE AGTPPALALQ KQIDKTKNRF DRYGKAGLL CGTDGLPHLI TDGRWTHSGE FVIPGLLFLY VAGWIGWVGR SYVLFARTAD KPTEKEIIID VPVALSFVST G FIWPFSAF KEFTSGNLIV PADEITVSPR

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: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 3.927708 KDa
SequenceString:
MTAAYLPSIL VPIIGLIFPG LVMAFAFIYI EQDEVA

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: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 4.974812 KDa
SequenceString:
MDSNFLKYLS TAPVLFTVWL SFTASFIIEA NRFFPDMLYF PM

UniProtKB: Photosystem I reaction center subunit IX

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Macromolecule #9: Photosystem I reaction center subunit XI

MacromoleculeName: Photosystem I reaction center subunit XI / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 16.475051 KDa
SequenceString:
MSQFIKPYND DPFVGNLATP VSTSSFTKSL LSNLPAYRAG LSPLLRGVEI GLTHGYFLVG PFYKLGPLRN SDVALLSGFF SALGLIVIL VACLTIYGVV SFEETEAKDQ LQTAKGWRQF TSGWLVGSVG GASFAYILIS NIPFLQTAGM SMLK

UniProtKB: Photosystem I reaction center subunit XI

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Macromolecule #10: Photosystem I reaction center subunit XII

MacromoleculeName: Photosystem I reaction center subunit XII / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 3.31807 KDa
SequenceString:
MISDTQIFIA LILALVSLVL AIRLGRALYQ

UniProtKB: Photosystem I reaction center subunit XII

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Macromolecule #11: PsaO

MacromoleculeName: PsaO / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 15.133567 KDa
SequenceString:
IFLAVLASAS AFAPAAMPTQ LGKPAAFTPS LRAARVAPSP LSVVAQSKSD FEISDGTPYT LNVPLVGAAS FIGWVVPTLL PSQIALYGG KGLSTAFFAS IGTNLAKFPA PPGMTDPFWL LCFIWHSGLF ATMILGSIGY NGYAGKK

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Macromolecule #12: Photosystem I reaction center subunit PsaK

MacromoleculeName: Photosystem I reaction center subunit PsaK / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 8.715256 KDa
SequenceString:
MNADLLIALV PQTVAWSAKT GAVMVLSNIL CIVAGRYVIQ VKGTGPSLPI SGSFAGFGLP ELLASTSLGH IVGSGAILGL SYVGVLS

UniProtKB: Photosystem I reaction center subunit PsaK

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Macromolecule #13: chain s

MacromoleculeName: chain s / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 27.96693 KDa
SequenceString: RTSVLILAGV AVAQAFSPAV VSTGGLTSLR MAQGPPPSTG KPLPKAKIEA LEVNKKQWGI EGGAAAPAAA APPAPKKAAA KKAAAPAGD TTGFSGVPSQ FARPESGVYP AEPTEQTFLG MRGPRAPGHR ENFGGKHTAT MLAIAALLWQ PVSEAGMYRM G ADGALTKS ...String:
RTSVLILAGV AVAQAFSPAV VSTGGLTSLR MAQGPPPSTG KPLPKAKIEA LEVNKKQWGI EGGAAAPAAA APPAPKKAAA KKAAAPAGD TTGFSGVPSQ FARPESGVYP AEPTEQTFLG MRGPRAPGHR ENFGGKHTAT MLAIAALLWQ PVSEAGMYRM G ADGALTKS SFSNMEVPGF GNMKKAPTIE SLFPFAKNGF DASPALFGKG SMIVVEDPRD GCGAYANSGA CHTFLDEIGD AL KKTPESL PRSEAKATYS FPWMYEHAAW KK

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Macromolecule #14: cac-c

MacromoleculeName: cac-c / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 23.781504 KDa
SequenceString: LRTALIAACV ASASAFVPAS GFAPMAMKSR TSAVSSMRMQ EGDFSAAVPF LKRPSNLDGA YIGDVGFDPL GFSDVFDLRV LREAELKHG RFAMLAVLGF IVQELYTFPF FPKMAPVDAH DYFVKQGGGS QIIFWISFVE LFGVVALFET LQGKREPGDF A FDPLGLAK ...String:
LRTALIAACV ASASAFVPAS GFAPMAMKSR TSAVSSMRMQ EGDFSAAVPF LKRPSNLDGA YIGDVGFDPL GFSDVFDLRV LREAELKHG RFAMLAVLGF IVQELYTFPF FPKMAPVDAH DYFVKQGGGS QIIFWISFVE LFGVVALFET LQGKREPGDF A FDPLGLAK DEATLERYRL AEVKHARLAM IAIGGFIHQY WVTKQTVLEQ LGNFKSLA

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Macromolecule #15: cac-a

MacromoleculeName: cac-a / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 23.330691 KDa
SequenceString: RTPVLVLAGA AAVSAFAPAA NLAGLRTSST RAAIARGPQM QEMSEAIPFM PKPANIDSSM PGYAGFDPLG FTDYYSAKWM QEAEIKHGR VCMLAALGMV FPEFAKFPQF ASFSTNPLEA FYQVSPAGWG QIFLFIGVLE TFSYEKSFYN FEGGAPGALG F DPLRMSSN ...String:
RTPVLVLAGA AAVSAFAPAA NLAGLRTSST RAAIARGPQM QEMSEAIPFM PKPANIDSSM PGYAGFDPLG FTDYYSAKWM QEAEIKHGR VCMLAALGMV FPEFAKFPQF ASFSTNPLEA FYQVSPAGWG QIFLFIGVLE TFSYEKSFYN FEGGAPGALG F DPLRMSSN PASAKQYAAA EVRNGRLAMI GFSGMLHHAI VSKQGPITQI VEQNFYPK

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Macromolecule #16: cac-b

MacromoleculeName: cac-b / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 23.503363 KDa
SequenceString: SYAFTASPAL IRAGAATRAT SGISGMKMQA KSKAVPFLSQ PEALDGSMAG DVGFDPFGIS SVIDIKWLRE SELKHGRICM LAATGCLVQ EVVHLPGPAF SQKMALNAWA AAPRGGMISI LVAIGLIEMI SNRFALTATD MFANPNRVPG DLGFDPLSLG A NPANRARF ...String:
SYAFTASPAL IRAGAATRAT SGISGMKMQA KSKAVPFLSQ PEALDGSMAG DVGFDPFGIS SVIDIKWLRE SELKHGRICM LAATGCLVQ EVVHLPGPAF SQKMALNAWA AAPRGGMISI LVAIGLIEMI SNRFALTATD MFANPNRVPG DLGFDPLSLG A NPANRARF ELSEVIHGRA AMMGFSGMVH QMIVSKQAPI EQLMHFKAVD SSLMKLGGAA GNLGY

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Macromolecule #17: cac-h

MacromoleculeName: cac-h / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 23.132781 KDa
SequenceString: STVALALVAG ATAFAPAAMG PGLSLRAQGA AQRAPARAGL SALSMAQNPM SKAVADFAES SPEFGGRGLG VTVNAERWNG RHAMFGIFA MVMTSYMKGH GLIPDADKVL DIAQWGPLAA VWDGAGNGIS NERAIILIAH VHVLVVSVIA AIAPFGFQDT L VKEKGYTP ...String:
STVALALVAG ATAFAPAAMG PGLSLRAQGA AQRAPARAGL SALSMAQNPM SKAVADFAES SPEFGGRGLG VTVNAERWNG RHAMFGIFA MVMTSYMKGH GLIPDADKVL DIAQWGPLAA VWDGAGNGIS NERAIILIAH VHVLVVSVIA AIAPFGFQDT L VKEKGYTP ESPAGLIPPF KTGLTAEAEL INGRLAMLGV ISIVTASLFT GTSVVDTINL GMGKILY

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Macromolecule #18: cac-f

MacromoleculeName: cac-f / type: protein_or_peptide / ID: 18 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 22.272936 KDa
SequenceString: VAAVACVASA AAFAPSAPMG VKATTRAVSS IGPRMQAMSE SVPFLKKPEA LDSSMAGYAG FDPLGLSSIA DIKFLQESEI KHCRIAMLA AAGSIAQDIF TFPGVSKVVG TAKMTGVHDV LVKQGAMGQI LLWTSFLEVF GTIALLETLD GKRAPGDFKF D PLGFSKNA ...String:
VAAVACVASA AAFAPSAPMG VKATTRAVSS IGPRMQAMSE SVPFLKKPEA LDSSMAGYAG FDPLGLSSIA DIKFLQESEI KHCRIAMLA AAGSIAQDIF TFPGVSKVVG TAKMTGVHDV LVKQGAMGQI LLWTSFLEVF GTIALLETLD GKRAPGDFKF D PLGFSKNA ETAKRYQLSE IKNGRLAMLA TGGMVHGYFI TGKGPLELLT NFGK

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Macromolecule #19: cac-e

MacromoleculeName: cac-e / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 21.787338 KDa
SequenceString: ATLACVASAS AFAPSALLPQ AGVRAAKTGM RMQENLAVPF LKAPAKLDSS MPGYAGFDPL GCSDFYDVKW LQEAEIKNGR VAMLGVVGL LVPEFFHLPM YTAGATPYES YTTVPAFALI QIFLGCGAVE YFTHKGKISP DNMFDGGRVP GEFGWGKADM T MQTKEIKN ...String:
ATLACVASAS AFAPSALLPQ AGVRAAKTGM RMQENLAVPF LKAPAKLDSS MPGYAGFDPL GCSDFYDVKW LQEAEIKNGR VAMLGVVGL LVPEFFHLPM YTAGATPYES YTTVPAFALI QIFLGCGAVE YFTHKGKISP DNMFDGGRVP GEFGWGKADM T MQTKEIKN GRLAMLAFGG ILHQQLFTKM GTIAHLTGGF KPLTF

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Macromolecule #20: cac-l

MacromoleculeName: cac-l / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 25.908721 KDa
SequenceString: PSEDIQSRAG VMDKHADIET EKSCIPGRIP RSRRCTLISI PRRVSDGCTL CSAAAIARGP TMQDNAMPFL ERPPKLDGSL AGDVGFDPV GFSNYFDLRW LRESELKHGR VCMLGVTGLL VQEAVCLPQF SNGKTPVDDF FVVPAAGLWQ VFFAIGAVEF F SHGFKLTP ...String:
PSEDIQSRAG VMDKHADIET EKSCIPGRIP RSRRCTLISI PRRVSDGCTL CSAAAIARGP TMQDNAMPFL ERPPKLDGSL AGDVGFDPV GFSNYFDLRW LRESELKHGR VCMLGVTGLL VQEAVCLPQF SNGKTPVDDF FVVPAAGLWQ VFFAIGAVEF F SHGFKLTP GDMFSEGREA GDFGFDPLGC GKNPDALARR RLVEVKNGRL AMIAFGGLLH QQLLTGQGTF EQLANFKAIA

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Macromolecule #21: cac-k

MacromoleculeName: cac-k / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 25.588902 KDa
SequenceString: TTLLVGAVGA ASAFAPAALP SMARTTSRSG VSMQLYKDGV LQGKGMRAVP FAPAPDCLPE NIPGYMGFDP LGLSTLCNVE WLREAEIKH CRVAMLAAAG SIAQDLYQFP GVEKIVGSAK MTGVHDKILA AASTGDYKAQ AMSQILFWTS FLEIVTLPAV F ETMNGGPR ...String:
TTLLVGAVGA ASAFAPAALP SMARTTSRSG VSMQLYKDGV LQGKGMRAVP FAPAPDCLPE NIPGYMGFDP LGLSTLCNVE WLREAEIKH CRVAMLAAAG SIAQDLYQFP GVEKIVGSAK MTGVHDKILA AASTGDYKAQ AMSQILFWTS FLEIVTLPAV F ETMNGGPR KPGVFFFDPL GLGKGDKMGE MELKEIKNGR LAMIGVGGMV HHYLLTGKGP IQFLSGIPNY KSCIEPHIGA LC Q

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Macromolecule #22: cac-i

MacromoleculeName: cac-i / type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 23.078553 KDa
SequenceString: ATLVAACVAT ASAFSASPVL LKAGTRSATS GLSGMKMQDM SASVPFLPRP AALDGSMVGD VGFDPLGFTT KYDIKWLRES ELKHGRVCM LASLGCIVQE IVHLPFEATS NPVASEAFFQ VPAGGLWQIF AGIGIVEHFS NNFKMSGSTM FSEGRAPGNL G FDPLNFGK ...String:
ATLVAACVAT ASAFSASPVL LKAGTRSATS GLSGMKMQDM SASVPFLPRP AALDGSMVGD VGFDPLGFTT KYDIKWLRES ELKHGRVCM LASLGCIVQE IVHLPFEATS NPVASEAFFQ VPAGGLWQIF AGIGIVEHFS NNFKMSGSTM FSEGRAPGNL G FDPLNFGK NPSARARYEL AEIKNGRLAM LGFGGMIHGC FITGKGPIGA LTSMDWHQSF

+
Macromolecule #23: cac-d

MacromoleculeName: cac-d / type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 22.391033 KDa
SequenceString: RLSLCAAIVA SASAFAPSGV LPTAPRRAGA VSAMKMQLPT AIPPLGRPET DMFDGSVPGD AGFDPLTISA WLDSRWLREA EIKHCRVAM LAAAGCIAQD IFQFPGAATV YKASTKMTAL HDAAVKAGSM GQMLFWIGFV EAISTAATIQ MLQGSGRAPG D FGFDPLGL ...String:
RLSLCAAIVA SASAFAPSGV LPTAPRRAGA VSAMKMQLPT AIPPLGRPET DMFDGSVPGD AGFDPLTISA WLDSRWLREA EIKHCRVAM LAAAGCIAQD IFQFPGAATV YKASTKMTAL HDAAVKAGSM GQMLFWIGFV EAISTAATIQ MLQGSGRAPG D FGFDPLGL GKGPGRARME LSEIKNGRLA MIGFSGMVHH YFITGKGPIE LLTSR

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Macromolecule #24: cac-g

MacromoleculeName: cac-g / type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 26.979537 KDa
SequenceString: VLVAAVIGYA SAFTAPVLPS THAVGRTNAM SGMRMQAKSK AIPFLDAPPA LSESMPGYVG FDPLWVSSML PDAGYVKFLQ EAEIKHGRV AMLAAAGAIV QDIFTFPGVK SVIGDVKMTS VHDKFLSMEA GSGKGDMAAM HQLLLWLGLL EIATSVAIIQ S FKGETSRG ...String:
VLVAAVIGYA SAFTAPVLPS THAVGRTNAM SGMRMQAKSK AIPFLDAPPA LSESMPGYVG FDPLWVSSML PDAGYVKFLQ EAEIKHGRV AMLAAAGAIV QDIFTFPGVK SVIGDVKMTS VHDKFLSMEA GSGKGDMAAM HQLLLWLGLL EIATSVAIIQ S FKGETSRG PGEFGFDPLN FGKGNSAGSD SYKLKEIKNG RLAMIGIGGM VHHYLLTGKG PLQFLGGIPN YKSCVSHPDS LL PWLFKAV GPVLPKIC

+
Macromolecule #25: PsaR

MacromoleculeName: PsaR / type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 13.318223 KDa
SequenceString:
LRCTVLLLAV ASASAFVSGP ATLALRSNTR AAISRGPQMF SPVPSPEGTK ETYWETKAPS SDVLGIGAGV SSGNFAAASV FAALVGGYC TGQVIPLTVE PNPLFLAGSF LLPYSWALHV AAWIQKNNGK

+
Macromolecule #26: cac-n

MacromoleculeName: cac-n / type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 22.876436 KDa
SequenceString: RSVAACACLA SAAAFAPSAV LPRAAPRAAA SNAPTMQLWN EGKIQGKGVS VIPLFPRPAS LDGTFPGDQG FDPFGFSSWV NMKFVAEAE IKHCRLAMLA FAGIMVESAG ISFPGATSVL GSSKNIFEIH DKAVASGAMG QILLWVSFFE VVAGVPAMNE M LNGESSRI ...String:
RSVAACACLA SAAAFAPSAV LPRAAPRAAA SNAPTMQLWN EGKIQGKGVS VIPLFPRPAS LDGTFPGDQG FDPFGFSSWV NMKFVAEAE IKHCRLAMLA FAGIMVESAG ISFPGATSVL GSSKNIFEIH DKAVASGAMG QILLWVSFFE VVAGVPAMNE M LNGESSRI PGYYAFDPLG QGKGDKMGRM QLSEIQNGRL AMLAVSGIVH HTLITGKGPL G

+
Macromolecule #27: PsaQ

MacromoleculeName: PsaQ / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rhodomonas salina (eukaryote)
Molecular weightTheoretical: 23.834393 KDa
SequenceString: RTAAYVALAA ASAEAFSTPA LSGLKMAEPA QISRKDVLTT AAGAAIIAMP TLAGAASLDP KTGFPIQGGS REKLCGGSAS AGCQPMTQA ASILDKQRTV LAGKITVAAN KVPVLTAAVD KMKTAKKPKL DRDYVLRYSA LYLTTLVDAM EQYCLRDANG A KAAGGAGL ...String:
RTAAYVALAA ASAEAFSTPA LSGLKMAEPA QISRKDVLTT AAGAAIIAMP TLAGAASLDP KTGFPIQGGS REKLCGGSAS AGCQPMTQA ASILDKQRTV LAGKITVAAN KVPVLTAAVD KMKTAKKPKL DRDYVLRYSA LYLTTLVDAM EQYCLRDANG A KAAGGAGL PKFKETLKPA SSSSLYSYVD TVKSGIAAVS AAAKAGDFDG VNKAAGDIKT AADSFLSTAN PPIIFN

+
Macromolecule #28: CHLOROPHYLL A

MacromoleculeName: CHLOROPHYLL A / type: ligand / ID: 28 / Number of copies: 257 / Formula: CLA
Molecular weightTheoretical: 893.489 Da
Chemical component information

ChemComp-CLA:
CHLOROPHYLL A

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Macromolecule #29: PHYLLOQUINONE

MacromoleculeName: PHYLLOQUINONE / type: ligand / ID: 29 / Number of copies: 2 / Formula: PQN
Molecular weightTheoretical: 450.696 Da
Chemical component information

ChemComp-PQN:
PHYLLOQUINONE

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Macromolecule #30: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE

MacromoleculeName: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / type: ligand / ID: 30 / Number of copies: 22 / Formula: LHG
Molecular weightTheoretical: 722.97 Da
Chemical component information

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

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Macromolecule #31: 1,3,3-trimethyl-2-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tet...

MacromoleculeName: 1,3,3-trimethyl-2-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-[(1R)-2,6,6-trimethylcyclohex-2-en-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohexene
type: ligand / ID: 31 / Number of copies: 29 / Formula: WVN
Molecular weightTheoretical: 536.873 Da

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Macromolecule #32: DODECYL-BETA-D-MALTOSIDE

MacromoleculeName: DODECYL-BETA-D-MALTOSIDE / type: ligand / ID: 32 / Number of copies: 4 / Formula: LMT
Molecular weightTheoretical: 510.615 Da
Chemical component information

ChemComp-LMT:
DODECYL-BETA-D-MALTOSIDE / detergent*YM

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Macromolecule #33: IRON/SULFUR CLUSTER

MacromoleculeName: IRON/SULFUR CLUSTER / type: ligand / ID: 33 / Number of copies: 3 / Formula: SF4
Molecular weightTheoretical: 351.64 Da
Chemical component information

ChemComp-FS1:
IRON/SULFUR CLUSTER

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Macromolecule #34: DIGALACTOSYL DIACYL GLYCEROL (DGDG)

MacromoleculeName: DIGALACTOSYL DIACYL GLYCEROL (DGDG) / type: ligand / ID: 34 / Number of copies: 1 / Formula: DGD
Molecular weightTheoretical: 949.299 Da
Chemical component information

ChemComp-DGD:
DIGALACTOSYL DIACYL GLYCEROL (DGDG)

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Macromolecule #35: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE

MacromoleculeName: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / type: ligand / ID: 35 / Number of copies: 8 / Formula: LMG
Molecular weightTheoretical: 787.158 Da
Chemical component information

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

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Macromolecule #36: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E}...

MacromoleculeName: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E})-3,7,12,16-tetramethyl-18-[(4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-1,17- ...Name: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E})-3,7,12,16-tetramethyl-18-[(4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-1,17-diynyl]cyclohex-3-en-1-ol
type: ligand / ID: 36 / Number of copies: 56 / Formula: II0
Molecular weightTheoretical: 564.84 Da
Chemical component information

ChemComp-II0:
(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E})-3,7,12,16-tetramethyl-18-[(4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-1,17-diynyl]cyclohex-3-en-1-ol

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Macromolecule #37: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E}...

MacromoleculeName: (1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol
type: ligand / ID: 37 / Number of copies: 12 / Formula: IHT
Molecular weightTheoretical: 550.856 Da
Chemical component information

ChemComp-IHT:
(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol

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Macromolecule #38: Chlorophyll c2

MacromoleculeName: Chlorophyll c2 / type: ligand / ID: 38 / Number of copies: 20 / Formula: KC2
Molecular weightTheoretical: 608.926 Da
Chemical component information

ChemComp-KC2:
Chlorophyll c2

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Macromolecule #39: DODECYL-ALPHA-D-MALTOSIDE

MacromoleculeName: DODECYL-ALPHA-D-MALTOSIDE / type: ligand / ID: 39 / Number of copies: 1 / Formula: LMU
Molecular weightTheoretical: 510.615 Da
Chemical component information

ChemComp-LMU:
DODECYL-ALPHA-D-MALTOSIDE / detergent*YM

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Macromolecule #40: water

MacromoleculeName: water / type: ligand / ID: 40 / Number of copies: 139 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

Concentration1.5 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 QUANTUM (4k 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: 2.3000000000000003 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

-
Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 86231
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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