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                        <description>Model completeness</description>
                        <details>We now only included segments of the substrate protein in the deposited models where the N-and C-terminal ends had a density above 4.5 RMSD in the final maps and the density between these termini did not drop below 3.5 RMSD. A final round of refinement improved the clash score.</details>
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            <revision version="2.3" date="2025-07-02">
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                        <revision_group>STRUCTURE_SUMMARY</revision_group>
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                            <category>em_admin</category>
                            <category>em_software</category>
                            <category>pdbx_entry_details</category>
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            </revision>
        </revision_history>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2021-02-09</deposition>
            <header_release>2021-04-07</header_release>
            <map_release>2021-04-07</map_release>
            <update>2025-07-02</update>
        </key_dates>
        <title>P2a-state of wild type human mitochondrial LONP1 protease with bound substrate protein and in presence of ATPgS</title>
        <authors_list>
            <author>Mohammed I</author>
            <author>Schmitz KA</author>
        </authors_list>
        <keywords>human mitochondrial AAA+ protease, MOTOR PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Mohammed I</author>
                    <author order="2">Schmitz KA</author>
                    <author order="3">Schenck N</author>
                    <author order="4">Balasopoulos D</author>
                    <author order="5">Topitsch A</author>
                    <author order="6">Maier T</author>
                    <author order="7">Abrahams JP</author>
                    <title>Catalytic cycling of human mitochondrial Lon protease.</title>
                    <journal_abbreviation>Structure</journal_abbreviation>
                    <country>UK</country>
                    <volume>30</volume>
                    <first_page>1254</first_page>
                    <last_page>1268.e7</last_page>
                    <year>2022</year>
                    <external_references type="PUBMED">35870450</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2022.06.006</external_references>
                    <external_references type="ISSN">0969-2126</external_references>
                    <external_references type="CSD">2005</external_references>
                    <external_references type="ASTM">STRUE6</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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                    <other>other EM volume</other>
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                <relationship>
                    <other>other EM volume</other>
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                <emdb_id>EMD-12315</emdb_id>
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                <relationship>
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                    <other>other EM volume</other>
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                <pdb_id>7ngc</pdb_id>
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                    <in_frame>FULLOVERLAP</in_frame>
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        </pdb_list>
    </crossreferences>
    <sample>
        <name>P2a-state of LonP1 hexameric complex in presence of ATPgS and bound substrate protein</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>P2a-state of LonP1 hexameric complex in presence of ATPgS and bound substrate protein</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.6</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Lon protease homolog, mitochondrial</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.096288758</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>HHHHHHGSMTIPDVFPHLPLIAITRNPVFPRFIKIIEVKNKKLVELLRRKVRLAQPYVGVFLKRDDSNESDVVESLDEIY
HTGTFAQIHEMQDLGDKLRMIVMGHRRVHISRQLEVEPEEPEAENKHKPRRKSKRGKKEAEDELSARHPAELAMEPTPEL
PAEVLMVEVENVVHEDFQVTEEVKALTAEIVKTIRDIIALNPLYRESVLQMMQAGQRVVDNPIYLSDMGAALTGAESHEL
QDVLEETNIPKRLYKALSLLKKEFELSKLQQRLGREVEEKIKQTHRKYLLQEQLKIIKKELGLEKDDKDAIEEKFRERLK
ELVVPKHVMDVVDEELSKLGLLDNHSSEFNVTRNYLDWLTSIPWGKYSNENLDLARAQAVLEEDHYGMEDVKKRILEFIA
VSQLRGSTQGKILCFYGPPGVGKTSIARSIARALNREYFRFSVGGMTDVAEIKGHRRTYVGAMPGKIIQCLKKTKTENPL
ILIDEVDKIGRGYQGDPSSALLELLDPEQNANFLDHYLDVPVDLSKVLFICTANVTDTIPEPLRDRMEMINVSGYVAQEK
LAIAERYLVPQARALCGLDESKAKLSSDVLTLLIKQYCRESGVRNLQKQVEKVLRKSAYKIVSGEAESVEVTPENLQDFV
GKPVFTVERMYDVTPPGVVMGLAWTAMGGSTLFVETSLRRPQDKDAKGDKDGSLEVTGQLGEVMKESARIAYTFARAFLM
QHAPANDYLVTSHIHLHVPEGATPKDGPSAGCTIVTALLSLAMGRPVRQNLAMTGEVSLTGKILPVGGIKEKTIAAKRAG
VTCIVLPAENKKDFYDLAAFITEGLEVHFVEHYREIFDIAFPDEQAEALAVER</string>
                    <external_references type="UNIPROTKB">P36776</external_references>
                </sequence>
                <ec_number>3.4.21.53</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>substrate protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.004698783</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)</string>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="3">
                <name>PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0005232469999999999</theoretical>
                </molecular_weight>
                <number_of_copies>5</number_of_copies>
                <formula>AGS</formula>
            </ligand>
            <ligand macromolecule_id="4">
                <name>MAGNESIUM ION</name>
                <molecular_weight>
                    <theoretical units="MDa">2.4305e-05</theoretical>
                </molecular_weight>
                <number_of_copies>5</number_of_copies>
                <formula>MG</formula>
            </ligand>
            <ligand macromolecule_id="5">
                <name>ADENOSINE-5'-DIPHOSPHATE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000427201</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>ADP</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">0.6</concentration>
                    <buffer>
                        <ph>7.6</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>OTHER</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 K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">68.0</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>
                <ctf_correction>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
                </ctf_correction>
                <startup_model type_of_model="NONE">
                    <details>ab-initio</details>
                </startup_model>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">7.5</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
                    <number_images_used>26800</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>400</col>
            <row>400</row>
            <sec>400</sec>
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            <a units="Å">423.19998</a>
            <b units="Å">423.19998</b>
            <c units="Å">423.19998</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
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        </cell>
        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
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            <maximum>1.9250636</maximum>
            <average>0.0037904673</average>
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        <contour_list>
            <contour primary="true">
                <level>0.26</level>
                <source>AUTHOR</source>
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    <interpretation>
        <modelling_list>
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                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
            </modelling>
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        <segmentation_list>
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