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        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2016-06-20</deposition>
            <header_release>2016-07-27</header_release>
            <map_release>2016-07-27</map_release>
            <update>2026-08-26</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Danish National Research Foundation</funding_body>
                <code>DNRF 59</code>
                <country>Denmark</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Estonia Research Council</funding_body>
                <code>IUT02-28</code>
                <country>Estonia</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Estonian Science Foundation</funding_body>
                <code>MJD262</code>
                <country>Estonia</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Hungarian Scientific Research Fund</funding_body>
                <code>OTKA-PD 104530 and OTKA-K 112688</code>
                <country>Hungary</country>
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        </grant_support>
        <title>In situ atomic-resolution structure of the baseplate antenna complex in Chlorobaculum tepidum obtained combining solid-state NMR spectroscopy, cryo electron microscopy and polarization spectroscopy</title>
        <authors_list>
            <author>Nielsen JT</author>
            <author>Kulminskaya NV</author>
        </authors_list>
        <keywords>photosynthesis, light-harvesting protein, binds bacteriochlorophyll a, oligomeric complex, bacteriochlorophyll binding protein</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Nielsen JT</author>
                    <author order="2">Kulminskaya NV</author>
                    <author order="3">Bjerring M</author>
                    <author order="4">Linnanto JM</author>
                    <author order="5">Ratsep M</author>
                    <author order="6">Pedersen MO</author>
                    <author order="7">Lambrev PH</author>
                    <author order="8">Dorogi M</author>
                    <author order="9">Garab G</author>
                    <author order="10">Thomsen K</author>
                    <author order="11">Jegerschold C</author>
                    <author order="12">Frigaard NU</author>
                    <author order="13">Lindahl M</author>
                    <author order="14">Nielsen NC</author>
                    <title>In situ high-resolution structure of the baseplate antenna complex in Chlorobaculum tepidum.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>7</volume>
                    <first_page>12454</first_page>
                    <last_page>12454</last_page>
                    <year>2016</year>
                    <external_references type="PUBMED">27534696</external_references>
                    <external_references type="DOI">doi:10.1038/ncomms12454</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author order="15">Kulminskaya NV</author>
                    <author order="16">Pedersen MO</author>
                    <author order="17">Bjerring M</author>
                    <author order="18">Underhaug J</author>
                    <author order="19">Miller M</author>
                    <author order="20">Frigaard NU</author>
                    <author order="21">Nielsen JT</author>
                    <author order="22">Nielsen NC</author>
                    <title>In situ solid-state NMR spectroscopy of protein in heterogeneous membranes: the baseplate antenna complex of Chlorobaculum tepidum.</title>
                    <journal_abbreviation>Angew.Chem.Int.Ed.Engl.</journal_abbreviation>
                    <country>GE</country>
                    <volume>51</volume>
                    <first_page>6891</first_page>
                    <last_page>6895</last_page>
                    <year>2012</year>
                    <external_references type="PUBMED">22685072</external_references>
                    <external_references type="DOI">doi:10.1002/anie.201201160</external_references>
                    <external_references type="ISSN">1433-7851</external_references>
                    <external_references type="CSD">9999</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>5lcb</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
        <other_db_list>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-4033</accession_id>
                <content_type>associated EM volume</content_type>
                <details>contains coordinates for the same protein as a monomer structure in organic solvent</details>
            </db_reference>
            <db_reference>
                <db_name>BMRB</db_name>
                <accession_id>15742</accession_id>
                <content_type>unspecified</content_type>
                <details>contains assigned chemical shifts for the same protein as a monomer structure in organic solvent</details>
            </db_reference>
            <db_reference>
                <db_name>BMRB</db_name>
                <accession_id>34012</accession_id>
                <content_type>unspecified</content_type>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>Carotenosome organelle consisting of csma proteins and bchla antenna molecules.</name>
        <supramolecule_list>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>Carotenosome organelle consisting of csma proteins and bchla antenna molecules.</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>Cryo-EM data of the ice-embedded isolated carotenosomes reveals molecular complex structure. Captured images clearly show supramolecular organization of the protein rows, originating from the BChl a - CsmA baseplate</details>
                <natural_source database="NCBI">
                    <organism ncbi="1097">Chlorobaculum tepidum</organism>
                    <organelle>carotenosome</organelle>
                </natural_source>
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Bacteriochlorophyll c-binding protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="194439">Chlorobium tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS)</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.006160033999999999</theoretical>
                </molecular_weight>
                <number_of_copies>14</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="1097">Chlorobaculum tepidum</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSGGGVFTDILAAAGRIFEVMVEGHWETVGMLFDSLGKGTMRINRNAYGSMGGGSLRGS</string>
                    <external_references type="UNIPROTKB">P0A314</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>BACTERIOCHLOROPHYLL A</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0009115039999999999</theoretical>
                </molecular_weight>
                <number_of_copies>14</number_of_copies>
                <formula>BCL</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">
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/4</model>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">30</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">298</chamber_temperature>
                        <instrument>FEI VITROBOT MARK II</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</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>
                    <calibrated_defocus_min units="µm">1.7</calibrated_defocus_min>
                    <calibrated_defocus_max units="µm">4.0</calibrated_defocus_max>
                    <nominal_magnification>59000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                            <number_real_images>270</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">8.0</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>1790</number_selected>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>CTFFIND</name>
                            <version>3</version>
                            <processing_details>defocus determined w ctffind3, phaseflipping w Spider</processing_details>
                        </software>
                    </software_list>
                    <type>PHASE FLIPPING ONLY</type>
                </ctf_correction>
                <startup_model type_of_model="OTHER">
                    <details>Generated in Eman2</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">26.5</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <number_images_used>1790</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>COMMON LINE</type>
                    <software_list>
                        <software>
                            <name>EMAN</name>
                            <version>2</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>OTHER</type>
                    <software_list>
                        <software>
                            <name>Strul</name>
                            <processing_details>Ultramicroscopy 2001 87(4): 165-75</processing_details>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
            <row>256</row>
            <sec>256</sec>
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            <x>256</x>
            <y>256</y>
            <z>256</z>
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        <cell>
            <a units="Å">307.2</a>
            <b units="Å">307.2</b>
            <c units="Å">307.2</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
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            <minimum>-9.999734</minimum>
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            <average>0.00491499</average>
            <std>0.9121985</std>
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        <pixel_spacing>
            <x units="Å">1.2</x>
            <y units="Å">1.2</y>
            <z units="Å">1.2</z>
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        <contour_list>
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                <level>0.0013</level>
                <source>AUTHOR</source>
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        <label>::::EMDATABANK.org::::EMD-4033::::</label>
        <annotation_details>3D reconstruction of the carotenosome CsmA-Bchl a baseplate obtained by cryo electron microscopy</annotation_details>
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