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                        <description>Metalloprotein remediation</description>
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        <sites>
            <deposition>RCSB</deposition>
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        <key_dates>
            <deposition>2020-06-27</deposition>
            <header_release>2020-12-30</header_release>
            <map_release>2020-12-30</map_release>
            <update>2026-08-12</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R01-GM38237</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Department of Energy (DOE, United States)</funding_body>
                <code>DE-FG02-91ER20052</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R01-GM123233</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>T32-GM008275</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>S10OD023592</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Israel Science Foundation</funding_body>
                <code>1466/18</code>
                <country>Israel</country>
            </grant_reference>
            <grant_reference>
                <funding_body>United States - Israel Binational Science Foundation (BSF)</funding_body>
                <code>2016070</code>
                <country>Israel</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Israel Ministry of Science and Technology</funding_body>
                <code>80802</code>
                <country>Israel</country>
            </grant_reference>
        </grant_support>
        <title>R. capsulatus cyt bc1 with both FeS proteins in c position (CIII2 c-c)</title>
        <authors_list>
            <author>Steimle S</author>
            <author>Van Eeuwen T</author>
        </authors_list>
        <keywords>cytochrome bc1, membrane protein complex, ubiquinone:cytochrome c oxidoreductase, Complex III, OXIDOREDUCTASE, TRANSLOCASE-Oxidoreductase complex</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Steimle S</author>
                    <author ORCID="0000-0003-0549-1702" order="2">van Eeuwen T</author>
                    <author order="3">Ozturk Y</author>
                    <author ORCID="0000-0002-0823-5301" order="4">Kim HJ</author>
                    <author order="5">Braitbard M</author>
                    <author order="6">Selamoglu N</author>
                    <author order="7">Garcia BA</author>
                    <author order="8">Schneidman-Duhovny D</author>
                    <author ORCID="0000-0002-2017-5575" order="9">Murakami K</author>
                    <author ORCID="0000-0002-2865-9574" order="10">Daldal F</author>
                    <title>Cryo-EM structures of engineered active bc 1 -cbb 3 type CIII 2 CIV super-complexes and electronic communication between the complexes.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>12</volume>
                    <first_page>929</first_page>
                    <last_page>929</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">33568648</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-021-21051-4</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6xkt</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
        <other_db_list>
            <db_reference>
                <db_name>PDB</db_name>
                <accession_id>6XI0</accession_id>
                <content_type>unspecified</content_type>
                <details>6XI0 contains the same protein in a different conformation, it was obtained from the same dataset</details>
            </db_reference>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-22224</accession_id>
                <content_type>associated EM volume</content_type>
                <details>R. capsulatus cyt bc1 with both FeS proteins in c position (CIII2 c-c)</details>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>homodimer of ubiquinol:cytochrome c reductase (complex III or cyt bc1 complex)</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>homodimer of ubiquinol:cytochrome c reductase (complex III or cyt bc1 complex)</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_list>
                <natural_source database="NCBI">
                    <organism ncbi="272942">Rhodobacter capsulatus SB 1003</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.25</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Cytochrome b</name>
                <natural_source database="NCBI">
                    <organism ncbi="272942">Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)</organism>
                    <strain>ATCC BAA-309 / NBRC 16581 / SB1003</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.049386468999999995</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="272942">Rhodobacter capsulatus SB 1003</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSGIPHDHYEPKTGIEKWLHDRLPIVGLVYDTIMIPTPKNLNWWWIWGIVLAFTLVLQIVTGIVLAMHYTPHVDLAFASV
EHIMRDVNGGWAMRYIHANGASLFFLAVYIHIFRGLYYGSYKAPREITWIVGMVIYLLMMGTAFMGYVLPWGQMSFWGAT
VITGLFGAIPGIGPSIQAWLLGGPAVDNATLNRFFSLHYLLPFVIAALVAIHIWAFHTTGNNNPTGVEVRRTSKADAEKD
TLPFWPYFVIKDLFALALVLLGFFAVVAYMPNYLGHPDNYVQANPLSTPAHIVPEWYFLPFYAILRAFAADVWVVILVDG
LTFGIVDAKFFGVIAMFGAIAVMALAPWLDTSKVRSGAYRPKFRMWFWFLVLDFVVLTWVGAMPTEYPYDWISLIASTYW
FAYFLVILPLLGATEKPEPIPASIEEDFNSHYGNPAE</string>
                    <external_references type="UNIPROTKB">D5ANZ3</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Cytochrome c1</name>
                <natural_source database="NCBI">
                    <organism ncbi="272942">Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)</organism>
                    <strain>ATCC BAA-309 / NBRC 16581 / SB1003</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.030352615</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="272942">Rhodobacter capsulatus SB 1003</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKKLLISAVSALVLGSGAAFANSNVPDHAFSFEGIFGKYDQAQLRRGFQVYNEVCSACHGMKFVPIRTLADDGGPQLDPT
FVREYAAGLDTIIDKDSGEERDRKETDMFPTRVGDGMGPDLSVMAKARAGFSGPAGSGMNQLFKGMGGPEYIYNYVIGFE
ENPECAPEGIDGYYYNKTFQIGGVPDTCKDAAGVKITHGSWARMPPPLVDDQVTYEDGTPATVDQMAQDVSAFLMWAAEP
KLVARKQMGLVAMVMLGLLSVMLYLTNKRLWAPYKGHKA</string>
                    <external_references type="UNIPROTKB">D5ANZ4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Ubiquinol-cytochrome c reductase iron-sulfur subunit</name>
                <natural_source database="NCBI">
                    <organism ncbi="272942">Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)</organism>
                    <strain>ATCC BAA-309 / NBRC 16581 / SB1003</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.020465109</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="272942">Rhodobacter capsulatus SB 1003</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSHAEDNAGTRRDFLYHATAATGVVVTGAAVWPLINQMNASADVKAMASIFVDVSAVEVGTQLTVKWRGKPVFIRRRDEK
DIELARSVPLGALRDTSAENANKPGAEATDENRTLPAFDGTNTGEWLVMLGVCTHLGCVPMGDKSGDFGGWFCPCHGSHY
DSAGRIRKGPAPRNLDIPVAAFVDETTIKLG</string>
                    <external_references type="UNIPROTKB">D5ANZ2</external_references>
                </sequence>
                <ec_number>7.1.1.8</ec_number>
            </protein_or_peptide>
            <ligand macromolecule_id="4">
                <name>HEME C</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0006205189999999999</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <formula>HEC</formula>
            </ligand>
            <ligand macromolecule_id="5">
                <name>FE2/S2 (INORGANIC) CLUSTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.00017581999999999998</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>FES</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">4</concentration>
                    <buffer>
                        <ph>7.4</ph>
                    </buffer>
                    <grid>
                        <model>C-flat-1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>400</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">120</time>
                        </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 IV</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>SPOT SCAN</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">40.0</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>733210</number_selected>
                </particle_selection>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                            <processing_details>CTFFIND 4.1 was used</processing_details>
                        </software>
                    </software_list>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
                </ctf_correction>
                <startup_model type_of_model="NONE"/>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C2</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">3.75</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>35069</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>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="55297">
        <file>emd_22224.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>240</col>
            <row>240</row>
            <sec>240</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>240</x>
            <y>240</y>
            <z>240</z>
        </spacing>
        <cell>
            <a units="Å">326.4</a>
            <b units="Å">326.4</b>
            <c units="Å">326.4</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>
        </axis_order>
        <statistics>
            <minimum>-0.110088654</minimum>
            <maximum>0.19442655</maximum>
            <average>0.00017753012</average>
            <std>0.0035374751</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.36</x>
            <y units="Å">1.36</y>
            <z units="Å">1.36</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.04</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-22224::::</label>
        <annotation_details>CIII2-cc</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>1ZRT</access_code>
                    <chain>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <target_criteria>Correlation coefficient</target_criteria>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>71.0</overall_bvalue>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
