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            <update>2026-08-12</update>
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        <grant_support>
            <grant_reference>
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                <code>JP19K22396</code>
                <country>Japan</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Japan Society for the Promotion of Science (JSPS)</funding_body>
                <code>JP20H03194</code>
                <country>Japan</country>
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                <code>JP20H02914</code>
                <country>Japan</country>
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        <title>Structure of monomeric photosystem II</title>
        <authors_list>
            <author>Yu H</author>
            <author>Hamaguchi T</author>
        </authors_list>
        <keywords>Photosynthesis, Photosystem, membrane protein</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Yu H</author>
                    <author order="2">Hamaguchi T</author>
                    <author order="3">Nakajima Y</author>
                    <author order="4">Kato K</author>
                    <author order="5">Kawakami K</author>
                    <author order="6">Akita F</author>
                    <author order="7">Yonekura K</author>
                    <author order="8">Shen JR</author>
                    <title>Cryo-EM structure of monomeric photosystem II at 2.78 angstrom resolution reveals factors important for the formation of dimer.</title>
                    <journal_abbreviation>Biochim Biophys Acta Bioenerg</journal_abbreviation>
                    <country>NE</country>
                    <volume>1862</volume>
                    <first_page>148471</first_page>
                    <last_page>148471</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">34216574</external_references>
                    <external_references type="DOI">doi:10.1016/j.bbabio.2021.148471</external_references>
                    <external_references type="ISSN">1879-2650</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
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                <accession_id>EMD-31062</accession_id>
                <content_type>associated EM volume</content_type>
                <details>Structure of monomeric photosystem II</details>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>Photosystem II</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Photosystem II</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>9</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>10</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>11</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>12</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>13</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>14</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>15</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>16</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>17</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>18</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>19</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>20</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Photosystem II protein D1</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.037029233999999994</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>ANLWERFCNWVTSTDNRLYVGWFGVIMIPTLLAATICFVIAFIAAPPVDIDGIREPVSGSLLYGNNIITGAVVPSSNAIG
LHFYPIWEAASLDEWLYNGGPYQLIIFHFLLGASCYMGRQWELSYRLGMRPWICVAYSAPLASAFAVFLIYPIGQGSFSD
GMPLGISGTFNFMIVFQAEHNILMHPFHQLGVAGVFGGALFCAMHGSLVTSSLIRETTETESANYGYKFGQEEETYNIVA
AHGYFGRLIFQYASFNNSRSLHFFLAAWPVVGVWFAALGISTMAFNLNGFNFNHSVIDAKGNVINTWADIINRANLGMEV
MHERNAHNFPLDLA</string>
                    <external_references type="UNIPROTKB">P51765</external_references>
                </sequence>
                <ec_number>1.10.3.9</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Photosystem II CP47 reaction center protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.055939562</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GLPWYRVHTVLINDPGRLIAAHLMHTALVAGWAGSMALYELATFDPSDPVLNPMWRQGMFVLPFMARLGVTGSWSGWSIT
GETGIDPGFWSFEGVALAHIVLSGLLFLAACWHWVYWDLELFRDPRTGEPALDLPKMFGIHLFLAGLLCFGFGAFHLTGL
FGPGMWVSDPYGLTGSVQPVAPEWGPDGFNPYNPGGVVAHHIAAGIVGIIAGLFHILVRPPQRLYKALRMGNIETVLSSS
IAAVFFAAFVVAGTMWYGSATTPIELFGPTRYQWDSSYFQQEINRRVQASLASGATLEEAWSAIPEKLAFYDYIGNNPAK
GGLFRTGPMNKGDGIAQAWKGHAVFRNKEGEELFVRRMPAFFESFPVILTDKNGVVKADIPFRRAESKYSFEQQGVTVSF
YGGELNGQTFTDPPTVKSYARKAIFGEIFEFDTETLNSDGIFRTSPRGWFTFAHAVFALLFFFGHIWHGARTLFRDVFSG
IDPELSPEQVEWGFYQKVGDVTTR</string>
                    <external_references type="UNIPROTKB">D0VWR1</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Photosystem II CP43 reaction center protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.04920725</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>ATNRDQESSGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMTLFELAHFIPEKPMYEQGLILIPHIATLGWGVGPG
GEVVDTFPFFVVGVVHLISSAVLGFGGVYHAIRGPETLEEYSSFFGYDWKDKNKMTTILGFHLIVLGIGALLLVAKAMFF
GGLYDTWAPGGGDVRVITNPTLDPRVIFGYLLKSPFGGEGWIVSVNNLEDVVGGHIWIGLICIAGGIWHILTTPFGWARR
AFIWSGEAYLSYSLGALSMMGFIATCFVWFNNTVYPSEFYGPTGPEASQAQAMTFLIRDQKLGANVGSAQGPTGLGKYLM
RSPTGEIIFGGETMRFWDFRGPWLEPLRGPNGLDLNKIKNDIQPWQERRAAEYMTHAPLGSLNSVGGVATEINSVNFVSP
RSWLATSHFVLAFFFLVGHLWHAGRARAAAAGFEKGIDRESEPVLSMPSLD</string>
                    <external_references type="UNIPROTKB">D0VWR7</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>Photosystem II D2 protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.038290828</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>RGWFDILDDWLKRDRFVFVGWSGILLFPCAYLALGGWLTGTTFVTSWYTHGLASSYLEGCNFLTVAVSTPANSMGHSLLL
LWGPEAQGDFTRWCQLGGLWTFIALHGAFGLIGFMLRQFEIARLVGVRPYNAIAFSAPIAVFVSVFLIYPLGQSSWFFAP
SFGVAAIFRFLLFFQGFHNWTLNPFHMMGVAGVLGGALLCAIHGATVENTLFQDGEGASTFRAFNPTQAEETYSMVTANR
FWSQIFGIAFSNKRWLHFFMLFVPVTGLWMSAIGVVGLALNLRSYDFISQEIRAAEDPEFETFYTKNLLLNEGIRAWMAP
QDQP(HSK)ENFVFPEEVLPRGNAL</string>
                    <external_references type="UNIPROTKB">D0VWR8</external_references>
                </sequence>
                <ec_number>1.10.3.9</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="5">
                <name>Cytochrome b559 subunit alpha</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.00958084</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MAGTTGERPFSDIITSVRYWVIHSITIPALFIAGWLFVSTGLAYDVFGTPRPDSYYAQEQRSIPLVTDRFEAKQQVETFL
EQLK</string>
                    <external_references type="UNIPROTKB">P12238</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="6">
                <name>Cytochrome b559 subunit beta</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.005067899999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTSNTPNQEPVSYPIFTVRWVAVHTLAVPTIFFLGAIAAMQFIQR</string>
                    <external_references type="UNIPROTKB">P12239</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="7">
                <name>Photosystem II reaction center protein H</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.006986271</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>ARRTWLGDILRPLNSEYGKVAPGWGTTPLMAVFMGLFLVFLLIILEIYNSTLILDGVNVSWK</string>
                    <external_references type="UNIPROTKB">P19052</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="8">
                <name>Photosystem II reaction center protein I</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004438255</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>(FME)ETLKITVYIVVTFFVLLFVFGFLSGDPARNPKRKDLE</string>
                    <external_references type="UNIPROTKB">P12240</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="9">
                <name>Photosystem II reaction center protein J</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004105908</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MMSEGGRIPLWIVATVAGMGVIVIVGLFFYGAYAGLGSSL</string>
                    <external_references type="UNIPROTKB">Q7DGD4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="10">
                <name>Photosystem II reaction center protein K</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004101911</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>KLPEAYAIFDPLVDVLPVIPVLFLALAFVWQAAVGFR</string>
                    <external_references type="UNIPROTKB">P19054</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="11">
                <name>Photosystem II reaction center protein L</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004299043999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MEPNPNRQPVELNRTSLYLGLLLILVLALLFSSYFFN</string>
                    <external_references type="UNIPROTKB">P12241</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="12">
                <name>Photosystem II reaction center protein M</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.0032898989999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>VNQLGLIATALFVLVPSVFLIILYVQTESQ</string>
                    <external_references type="UNIPROTKB">P12312</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="13">
                <name>Photosystem II manganese-stabilizing polypeptide</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.026651706999999997</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>QTLTYDDIVGTGLANKCPTLDDTARGAYPIDSSQTYRIARLCLQPTTFLVKEEPKNKRQEAEFVPTKLVTRETTSLDQIQ
GELKVNSDGSLTFVEEDGIDFQPVTVQMAGGERIPLLFTVKNLVASTQPNVTSITTSTDFKGEFNVPSYRTANFLDPKGR
GLASGYDSAIALPQAKEEELARANVKRFSLTKGQISLNVAKVDGRTGEIAGTFESEQLSDDDMGAHEPHEVKIQGVFYAS
IEPA</string>
                    <external_references type="UNIPROTKB">D0VWR2</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="14">
                <name>Photosystem II reaction center protein T</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.0036483789999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>(FME)ETITYVFIFACIIALFFFAIFFREPPRIT</string>
                    <external_references type="UNIPROTKB">P12313</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="15">
                <name>Photosystem II 12 kDa extrinsic protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.011655986</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>ATASTEEELVNVVDEKLGTAYGEKIDLNNTNIAAFIQYRGLYPTLAKLIVKNAPYESVEDVLNIPGLTERQKQILRENLE
HFTVTEVETALVEGGDRYNNGLYK</string>
                    <external_references type="UNIPROTKB">P56152</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="16">
                <name>Cytochrome c-550</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.018046943</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MLKKCVWLAVALCLCLWQFTMGTALAAELTPEVLTVPLNSEGKTITLTEKQYLEGKRLFQYACASCHVGGITKTNPSLDL
RTETLALATPPRDNIEGLVDYMKNPTTYDGEQEIAEVHPSLRSADIFPKMRNLTEKDLVAIAGHILVEPKILGDKWGGGK
VYY</string>
                    <external_references type="UNIPROTKB">P0A387</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="17">
                <name>Photosystem II reaction center protein Ycf12</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.0032280349999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>EVIAQLTMIAMIGIAGPMIIFLLAVRRGNL</string>
                    <external_references type="UNIPROTKB">D0VWR3</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="18">
                <name>Photosystem II reaction center protein X</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004191029999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>TITPSLKGFFIGLLSGAVVLGLTFAVLIAISQIDKVQRSL</string>
                    <external_references type="UNIPROTKB">D0VWR4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="19">
                <name>Photosystem II reaction center protein Z</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.006766187</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTILFQLALAALVILSFVMVIGVPVAYASPQDWDRSKQLIFLGSGLWIALVLVVGVLNFFVV</string>
                    <external_references type="UNIPROTKB">D0VWR5</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="20">
                <name>Photosystem II protein Y</name>
                <natural_source database="NCBI">
                    <organism ncbi="32053">Thermosynechococcus vulcanus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.003859732</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>DWRVLVVLLPVLLAAGWAVRNILPYAVKQVQKLL</string>
                    <external_references type="UNIPROTKB">P0DM37</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="21">
                <name>CA-MN4-O5 CLUSTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.00033982699999999996</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>OEX</formula>
            </ligand>
            <ligand macromolecule_id="22">
                <name>FE (II) ION</name>
                <molecular_weight>
                    <theoretical units="MDa">5.5845e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>FE2</formula>
            </ligand>
            <ligand macromolecule_id="23">
                <name>CHLOROPHYLL A</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000893489</theoretical>
                </molecular_weight>
                <number_of_copies>35</number_of_copies>
                <formula>CLA</formula>
            </ligand>
            <ligand macromolecule_id="24">
                <name>PHEOPHYTIN A</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0008712</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>PHO</formula>
            </ligand>
            <ligand macromolecule_id="25">
                <name>BETA-CAROTENE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000536873</theoretical>
                </molecular_weight>
                <number_of_copies>8</number_of_copies>
                <formula>BCR</formula>
            </ligand>
            <ligand macromolecule_id="26">
                <name>1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0007951159999999999</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>SQD</formula>
            </ligand>
            <ligand macromolecule_id="27">
                <name>1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0007871579999999999</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <formula>LMG</formula>
            </ligand>
            <ligand macromolecule_id="28">
                <name>2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000749201</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>PL9</formula>
            </ligand>
            <ligand macromolecule_id="29">
                <name>UNKNOWN LIGAND</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0009492989999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>UNL</formula>
            </ligand>
            <ligand macromolecule_id="30">
                <name>DIGALACTOSYL DIACYL GLYCEROL (DGDG)</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0009492989999999999</theoretical>
                </molecular_weight>
                <number_of_copies>4</number_of_copies>
                <formula>DGD</formula>
            </ligand>
            <ligand macromolecule_id="31">
                <name>BICARBONATE ION</name>
                <molecular_weight>
                    <theoretical units="MDa">6.1017e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>BCT</formula>
            </ligand>
            <ligand macromolecule_id="32">
                <name>1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.00072297</theoretical>
                </molecular_weight>
                <number_of_copies>4</number_of_copies>
                <formula>LHG</formula>
            </ligand>
            <ligand macromolecule_id="33">
                <name>PROTOPORPHYRIN IX CONTAINING FE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000616487</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>HEM</formula>
            </ligand>
            <ligand macromolecule_id="34">
                <name>(3R)-beta,beta-caroten-3-ol</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0005528719999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>RRX</formula>
            </ligand>
            <ligand macromolecule_id="35">
                <name>HEME C</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0006205189999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>HEC</formula>
            </ligand>
            <ligand macromolecule_id="36">
                <name>water</name>
                <molecular_weight>
                    <theoretical units="MDa">1.8015e-05</theoretical>
                </molecular_weight>
                <number_of_copies>16</number_of_copies>
                <formula>HOH</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <buffer>
                        <ph>6.0</ph>
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                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
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                <single_particle_microscopy microscopy_id="1">
                    <microscope>JEOL CRYO ARM 300</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
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            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <ctf_correction>
                    <type>NONE</type>
                </ctf_correction>
                <startup_model type_of_model="PDB ENTRY"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">2.78</resolution>
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                <initial_angle_assignment>
                    <type>NOT APPLICABLE</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                </final_angle_assignment>
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        </structure_determination>
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        <label>::::EMDATABANK.org::::EMD-31062::::</label>
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