<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_2/emdb.xsd" version="3.0.9.2" emdb_id="EMD-0977">
    <admin>
        <current_status>
            <date>2024-03-27</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-01-24</deposition>
            <header_release>2021-03-17</header_release>
            <map_release>2021-03-17</map_release>
            <update>2024-03-27</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Japan Science and Technology</funding_body>
                <code>JPMJCR13M4</code>
                <country>Japan</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Ministry of Education, Culture, Sports, Science and Technology (Japan)</funding_body>
                <code>16H06560</code>
                <country>Japan</country>
            </grant_reference>
        </grant_support>
        <title>Cyanobacterial PSI Monomer from T. elongatus by Single Particle CRYO-EM at 3.2 A Resolution</title>
        <authors_list>
            <author>Kurisu G</author>
            <author>Coruh O</author>
        </authors_list>
        <keywords>monomer, complex, photosystem, photosynthesis, MEMBRANE PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-3219-2022" order="1">Coruh O</author>
                    <author ORCID="0000-0002-7549-8064" order="2">Frank A</author>
                    <author order="3">Tanaka H</author>
                    <author ORCID="0000-0002-7380-0127" order="4">Kawamoto A</author>
                    <author order="5">El-Mohsnawy E</author>
                    <author ORCID="0000-0002-8879-6685" order="6">Kato T</author>
                    <author ORCID="0000-0003-2911-5875" order="7">Namba K</author>
                    <author ORCID="0000-0002-7265-2804" order="8">Gerle C</author>
                    <author ORCID="0000-0002-9269-0672" order="9">Nowaczyk MM</author>
                    <author ORCID="0000-0002-5354-0807" order="10">Kurisu G</author>
                    <title>Cryo-EM structure of a functional monomeric Photosystem I from Thermosynechococcus elongatus reveals red chlorophyll cluster.</title>
                    <journal_abbreviation>Commun Biol</journal_abbreviation>
                    <country>UK</country>
                    <volume>4</volume>
                    <first_page>304</first_page>
                    <last_page>304</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">33686186</external_references>
                    <external_references type="DOI">doi:10.1038/s42003-021-01808-9</external_references>
                    <external_references type="ISSN">2399-3642</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6lu1</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Cyanobacterial PSI Monomer from T. elongatus</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Cyanobacterial PSI Monomer from T. elongatus</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>7</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_list>
                <details>The monomers in this sample are generated by the monomerization of trimers of PSI during the purification process.</details>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus BP-1</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="kDa/nm">350</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Photosystem I P700 chlorophyll a apoprotein A1</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus BP-1</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.083267773</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTISPPEREPKVRVVVDNDPVPTSFEKWAKPGHFDRTLARGPQTTTWIWNLHALAHDFDTHTSDLEDISRKIFSAHFGHL
AVVFIWLSGMYFHGAKFSNYEAWLADPTGIKPSAQVVWPIVGQGILNGDVGGGFHGIQITSGLFQLWRASGITNEFQLYC
TAIGGLVMAGLMLFAGWFHYHKRAPKLEWFQNVESMLNHHLAGLLGLGSLAWAGHQIHVSLPINKLLDAGVAAKDIPLPH
EFILNPSLMAELYPKVDWGFFSGVIPFFTFNWAAYSDFLTFNGGLNPVTGGLWLSDTAHHHLAIAVLFIIAGHMYRTNWG
IGHSLKEILEAHKGPFTGAGHKGLYEVLTTSWHAQLAINLAMMGSLSIIVAQHMYAMPPYPYLATDYPTQLSLFTHHMWI
GGFLVVGGAAHGAIFMVRDYDPAMNQNNVLDRVLRHRDAIISHLNWVCIFLGFHSFGLYVHNDTMRAFGRPQDMFSDTGI
QLQPVFAQWVQNLHTLAPGGTAPNAAATASVAFGGDVVAVGGKVAMMPIVLGTADFMVHHIHAFTIHVTVLILLKGVLFA
RSSRLIPDKANLGFRFPCDGPGRGGTCQVSGWDHVFLGLFWMYNCISVVIFHFSWKMQSDVWGTVAPDGTVSHITGGNFA
QSAITINGWLRDFLWAQASQVIGSYGSALSAYGLLFLGAHFIWAFSLMFLFSGRGYWQELIESIVWAHNKLKVAPAIQPR
ALSIIQGRAVGVAHYLLGGIATTWAFFLARIISVG</string>
                    <external_references type="UNIPROTKB">P0A405</external_references>
                </sequence>
                <ec_number>1.97.1.12</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Photosystem I P700 chlorophyll a apoprotein A2</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus (strain BP-1)</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.083123648</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MATKFPKFSQDLAQDPTTRRIWYAIAMAHDFESHDGMTEENLYQKIFASHFGHLAIIFLWVSGSLFHVAWQGNFEQWVQD
PVNTRPIAHAIWDPQFGKAAVDAFTQAGASNPVDIAYSGVYHWWYTIGMRTNGDLYQGAIFLLILASLALFAGWLHLQPK
FRPSLSWFKNAESRLNHHLAGLFGVSSLAWAGHLIHVAIPESRGQHVGWDNFLSTMPHPAGLAPFFTGNWGVYAQNPDTA
SHVFGTAQGAGTAILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTQFGIGHSIKEMMDAKDFFGTKVEGPFN
MPHQGIYETYNNSLHFQLGWHLACLGVITSLVAQHMYSLPPYAFIAQDHTTMAALYTHHQYIAGFLMVGAFAHGAIFLVR
DYDPAQNKGNVLDRVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFGTPEKQILIEPVFAQFIQAAHGKLLYGFDT
LLSNPDSIASTAWPNYGNVWLPGWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDF
GYAFPCDGPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYWHWKHLGVWEGNVAQFNESSTYLMGWLRDYLWLNSSQLIN
GYNPFGTNNLSVWAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPLANLVRWKDKPVALSIVQARLVGLAHF
SVGYILTYAAFLIASTAAKFG</string>
                    <external_references type="UNIPROTKB">P0A407</external_references>
                </sequence>
                <ec_number>1.97.1.12</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Photosystem I iron-sulfur center</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus (strain BP-1)</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.008809207</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MAHTVKIYDTCIGCTQCVRACPTDVLEMVPWDGCKAGQIASSPRTEDCVGCKRCETACPTDFLSIRVYLGAETTRSMGLA
Y</string>
                    <external_references type="UNIPROTKB">P0A415</external_references>
                </sequence>
                <ec_number>1.97.1.12</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>Photosystem I reaction center subunit II</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus (strain BP-1)</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.015389494</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTTLTGQPPLYGGSTGGLLSAADTEEKYAITWTSPKEQVFEMPTAGAAVMREGENLVYFARKEQCLALAAQQLRPRKIND
YKIYRIFPDGETVLIHPKDGVFPEKVNKGREAVNSVPRSIGQNPNPSQLKFTGKKPYDP</string>
                    <external_references type="UNIPROTKB">P0A420</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="5">
                <name>Photosystem I reaction center subunit IV</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus (strain BP-1)</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.008399485</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MVQRGSKVKILRPESYWYNEVGTVASVDQTPGVKYPVIVRFDKVNYTGYSGSASGVNTNNFALHEVQEVAPPKKGK</string>
                    <external_references type="UNIPROTKB">P0A423</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="6">
                <name>Photosystem I reaction center subunit III</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus BP-1</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.017716586</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MRRFLALLLVLTLWLGFTPLASADVAGLVPCKDSPAFQKRAAAAVNTTADPASGQKRFERYSQALCGEDGLPHLVVDGRL
SRAGDFLIPSVLFLYIAGWIGWVGRAYLIAVRNSGEANEKEIIIDVPLAIKCMLTGFAWPLAALKELASGELTAKDNEIT
VSPR</string>
                    <external_references type="UNIPROTKB">P0A401</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="7">
                <name>Photosystem I reaction center subunit VIII</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus BP-1</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.0042972340000000005</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MMGSYAASFLPWIFIPVVCWLMPTVVMGLLFLYIEGEA</string>
                    <external_references type="UNIPROTKB">P0A427</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="8">
                <name>Photosystem I reaction center subunit IX</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus BP-1</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004770698</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKHFLTYLSTAPVLAAIWMTITAGILIEFNRFYPDLLFHPL</string>
                    <external_references type="UNIPROTKB">P0A429</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="9">
                <name>Photosystem I reaction center subunit XI</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus (strain BP-1)</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.016261684999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MAEELVKPYNGDPFVGHLSTPISDSGLVKTFIGNLPAYRQGLSPILRGLEVGMAHGYFLIGPWVKLGPLRDSDVANLGGL
ISGIALILVATACLAAYGLVSFQKGGSSSDPLKTSEGWSQFTAGFFVGAMGSAFVAFFLLENFSVVDGIMTGLFN</string>
                    <external_references type="UNIPROTKB">Q8DGB4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="10">
                <name>Photosystem I reaction center subunit XII</name>
                <natural_source database="NCBI">
                    <organism ncbi="197221">Thermosynechococcus elongatus (strain BP-1)</organism>
                    <strain>BP-1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.0034261149999999995</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MALTDTQVYVALVIALLPAVLAFRLSTELYK</string>
                    <external_references type="UNIPROTKB">P0A403</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="11">
                <name>CHLOROPHYLL A</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000893489</theoretical>
                </molecular_weight>
                <number_of_copies>82</number_of_copies>
                <formula>CLA</formula>
            </ligand>
            <ligand macromolecule_id="12">
                <name>PHYLLOQUINONE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000450696</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>PQN</formula>
            </ligand>
            <ligand macromolecule_id="13">
                <name>BETA-CAROTENE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000536873</theoretical>
                </molecular_weight>
                <number_of_copies>26</number_of_copies>
                <formula>BCR</formula>
            </ligand>
            <ligand macromolecule_id="14">
                <name>1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.00072297</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>LHG</formula>
            </ligand>
            <ligand macromolecule_id="15">
                <name>IRON/SULFUR CLUSTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.00035163999999999996</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <formula>SF4</formula>
            </ligand>
            <ligand macromolecule_id="16">
                <name>1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0007871579999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>LMG</formula>
            </ligand>
            <ligand macromolecule_id="17">
                <name>water</name>
                <molecular_weight>
                    <theoretical units="MDa">1.8015e-05</theoretical>
                </molecular_weight>
                <number_of_copies>5</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>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">5</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>HEPES</formula>
                            <name>2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid</name>
                        </component>
                        <component>
                            <concentration units="mM">10.0</concentration>
                            <formula>MgCl2</formula>
                            <name>Magnesium Chloride</name>
                        </component>
                        <component>
                            <concentration units="%">0.0005</concentration>
                            <formula>C56H92O25</formula>
                            <name>Glyco-diosgenin (GDN)</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                            <film_thickness>20.0</film_thickness>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">30</time>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">277.15</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                    </vitrification>
                    <details>Sample was monodisperse.</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>JEOL CRYO ARM 200</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_cs units="mm">1.4</nominal_cs>
                    <calibrated_defocus_min units="µm">0.5</calibrated_defocus_min>
                    <calibrated_defocus_max units="µm">3.5</calibrated_defocus_max>
                    <nominal_magnification>60000.0</nominal_magnification>
                    <calibrated_magnification>56497.0</calibrated_magnification>
                    <specimen_holder_model>JEOL</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min units="K">100.4</temperature_min>
                        <temperature_max units="K">100.4</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3710</width>
                                    <height units="pixel">3838</height>
                                </dimensions>
                                <frames_per_image>1-60</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <average_exposure_time units="s">12.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">1.34</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>182018</number_selected>
                </particle_selection>
                <startup_model type_of_model="OTHER">
                    <details>Initial model by stochastic gradient descent.</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">3.2</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                    <number_images_used>46105</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>1</number_classes>
                    <average_number_members_per_class>46105.0</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                    <details>Only one class selected out of four classes.</details>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="67109">
        <file>emd_0977.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
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