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        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2021-06-27</deposition>
            <header_release>2021-07-28</header_release>
            <map_release>2021-07-28</map_release>
            <update>2026-03-04</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institute of Dental and Craniofacial Research</funding_body>
                <code>DP5OD017885</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>R01GM141044</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Deafness and Other Communication Disorders (NIH/NIDCD)</funding_body>
                <code>R01DC018827</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM structure of the ADP state actin filament</title>
        <authors_list>
            <author>Gong R</author>
            <author>Espinosa de los Reyes S</author>
        </authors_list>
        <keywords>filamentous actin, cytoskeleton, adhesion, contractility, CELL ADHESION</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-7270-2974" order="1">Gong R</author>
                    <author ORCID="0000-0003-4659-9322" order="2">Jiang F</author>
                    <author ORCID="0000-0003-3582-6374" order="3">Moreland ZG</author>
                    <author ORCID="0000-0002-2501-9280" order="4">Reynolds MJ</author>
                    <author ORCID="0000-0003-4510-8296" order="5">de Los Reyes SE</author>
                    <author order="6">Gurel P</author>
                    <author order="7">Shams A</author>
                    <author ORCID="0000-0001-7358-1705" order="8">Heidings JB</author>
                    <author ORCID="0000-0001-7971-445X" order="9">Bowl MR</author>
                    <author ORCID="0000-0001-5531-8794" order="10">Bird JE</author>
                    <author ORCID="0000-0001-7250-4484" order="11">Alushin GM</author>
                    <title>Structural basis for tunable control of actin dynamics by myosin-15 in mechanosensory stereocilia.</title>
                    <journal_abbreviation>Sci Adv</journal_abbreviation>
                    <country>US</country>
                    <volume>8</volume>
                    <first_page>eabl4733</first_page>
                    <last_page>eabl4733</last_page>
                    <year>2022</year>
                    <external_references type="PUBMED">35857845</external_references>
                    <external_references type="DOI">doi:10.1126/sciadv.abl4733</external_references>
                    <external_references type="ISSN">2375-2548</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author order="12">Gong R</author>
                    <author order="13">Jiang F</author>
                    <author order="14">Moreland ZG</author>
                    <author order="15">Reynolds MJ</author>
                    <author order="16">Gurel PS</author>
                    <author order="17">Shams A</author>
                    <author order="18">Bowl MR</author>
                    <author order="19">Bird JE</author>
                    <author order="20">Alushin GM</author>
                    <title>Structural basis for tunable control of actin dynamics by myosin-15 in mechanosensory stereocilia</title>
                    <journal_abbreviation>Biorxiv</journal_abbreviation>
                    <country>US</country>
                    <year>2021</year>
                    <external_references type="DOI">doi:10.1101/2021.07.09.451843</external_references>
                    <external_references type="ISSN">2692-8205</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
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                <pdb_id>7r8v</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
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        </pdb_list>
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                <db_name>EMDB</db_name>
                <accession_id>EMD-24321</accession_id>
                <content_type>associated EM volume</content_type>
                <details>cryo-EM structure of ADP state actin filament</details>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>filamentous chicken skeletal muscle actin</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>filamentous chicken skeletal muscle actin</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>chicken skeletal muscle actin purified from fresh chicken breast</details>
                <natural_source database="NCBI">
                    <organism ncbi="9031">Gallus gallus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="kDa/nm">5.4</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Actin, alpha skeletal muscle, intermediate form</name>
                <natural_source database="NCBI">
                    <organism ncbi="9031">Gallus gallus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.041387227</theoretical>
                </molecular_weight>
                <number_of_copies>5</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIE(HIC)GIITNWD
DMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVT
HNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSY
ELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITAL
APSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHRKCF</string>
                    <external_references type="UNIPROTKB">P68139</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>ADENOSINE-5'-DIPHOSPHATE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000427201</theoretical>
                </molecular_weight>
                <number_of_copies>5</number_of_copies>
                <formula>ADP</formula>
            </ligand>
            <ligand macromolecule_id="3">
                <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>
        </macromolecule_list>
    </sample>
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            <method>helical</method>
            <aggregation_state>filament</aggregation_state>
            <specimen_preparation_list>
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                    <buffer>
                        <ph>7.0</ph>
                        <details>10 mM imidazole pH 7.0, 50 mM KCl, 1 mM MgCl2, 1 mM EGTA, 0.5 mM DTT,  0.01% NaN3</details>
                    </buffer>
                    <grid>
                        <model>C-flat-1.2/1.3</model>
                        <material>GOLD</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">10</time>
                            <atmosphere>OTHER</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">293</chamber_temperature>
                    </vitrification>
                    <details>chicken cytoskeletal actin purified from chicken breast muscle</details>
                </helical_preparation>
            </specimen_preparation_list>
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                <helical_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>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">3.5</nominal_defocus_max>
                    <nominal_magnification>29000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>SUPER-RESOLUTION</detector_mode>
                            <digitization_details>
                                <frames_per_image>1-40</frames_per_image>
                            </digitization_details>
                            <average_exposure_time units="s">10.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">60.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="Å">27.19</delta_z>
                            <delta_phi units="deg">-166.85</delta_phi>
                            <axial_symmetry>C1</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">2.82</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>228334</number_images_used>
                </final_reconstruction>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>CTFFIND</name>
                            <version>4.1</version>
                        </software>
                    </software_list>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
                </ctf_correction>
                <segment_selection>
                    <number_selected>229833</number_selected>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </segment_selection>
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                    <pdb_model>
                        <pdb_id>6BNO</pdb_id>
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                        <software>
                            <name>RELION</name>
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