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    <admin>
        <current_status>
            <date>2026-03-11</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <revision_history>
            <revision version="1.0" date="2026-03-11">
                <change_list>
                    <model>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </model>
                    <metadata>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </metadata>
                    <fsc>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </fsc>
                    <half_map part="1">
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
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                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
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                        <revision_type>INITIAL_RELEASE</revision_type>
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                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
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                    <primary_map>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </primary_map>
                </change_list>
            </revision>
        </revision_history>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2026-01-21</deposition>
            <header_release>2026-03-11</header_release>
            <map_release>2026-03-11</map_release>
            <update>2026-03-11</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>P01AG002132</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>P30AG062422</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>P01AG019724</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>U01AG057195</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>U19AG063911</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Other private</funding_body>
            </grant_reference>
            <grant_reference>
                <funding_body>Other private</funding_body>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>U19: AG063911</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Other private</funding_body>
                <code>U54 NS092089</code>
            </grant_reference>
            <grant_reference>
                <funding_body>Other private</funding_body>
                <code>U01 AG045390</code>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>P01 AG019724</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Other private</funding_body>
                <code>P30 AG062422</code>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>U24 AG21886</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Other private</funding_body>
                <code>A141860</code>
            </grant_reference>
        </grant_support>
        <title>S305I Frontotemporal Lobar Degeneration (FTLD) type II tau filament</title>
        <authors_list>
            <author>Pan HS</author>
            <author>Merz GE</author>
            <author>Tse E</author>
            <author>Southworth DR</author>
        </authors_list>
        <keywords>tau, MAPT, FTD, FTLD, amyloid, neurodegeneration, PROTEIN FIBRIL</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-1323-037X" order="1">Pan HS</author>
                    <author ORCID="0000-0003-0842-4935" order="2">Merz GE</author>
                    <author ORCID="0000-0003-3474-8044" order="3">Li AN</author>
                    <author ORCID="0009-0002-4382-6526" order="4">Le MQ</author>
                    <author ORCID="0000-0002-4863-0779" order="5">Jo H</author>
                    <author order="6">Quddus A</author>
                    <author order="7">Yung A</author>
                    <author ORCID="0000-0002-5831-1464" order="8">Kormos RC</author>
                    <author ORCID="0000-0002-9345-1462" order="9">Melo AA</author>
                    <author ORCID="0009-0003-7982-4415" order="10">Ramos EM</author>
                    <author order="11">Lago AL</author>
                    <author ORCID="0000-0003-3570-9143" order="12">Spina S</author>
                    <author ORCID="0000-0002-6809-0618" order="13">Grinberg LT</author>
                    <author ORCID="0000-0001-9281-7402" order="14">Rosen HJ</author>
                    <author ORCID="0000-0002-2082-9006" order="15">Tse E</author>
                    <author ORCID="0000-0002-7426-7782" order="16">Gorno-Tempini ML</author>
                    <author ORCID="0000-0003-4745-263X" order="17">DeGrado WF</author>
                    <author ORCID="0000-0003-1410-2027" order="18">Seeley WW</author>
                    <author ORCID="0000-0001-7108-9389" order="19">Southworth DR</author>
                    <title>Distinct tau filament folds in familial frontotemporal dementia due to the MAPT S305I mutation.</title>
                    <journal_abbreviation>Biorxiv</journal_abbreviation>
                    <country>US</country>
                    <year>2026</year>
                    <external_references type="PUBMED">41726928</external_references>
                    <external_references type="DOI">doi:10.64898/2026.02.12.705620</external_references>
                    <external_references type="ISSN">2692-8205</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>10ik</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-75196</accession_id>
                <content_type>associated EM volume</content_type>
                <details>S305I Frontotemporal Lobar Degeneration (FTLD) type II tau filament</details>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>Filaments purified S305I FTLD individual brain tissue</name>
        <supramolecule_list>
            <tissue_supramolecule supramolecule_id="1">
                <name>Filaments purified S305I FTLD individual brain tissue</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
            </tissue_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Microtubule-associated protein tau</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.011562394</theoretical>
                </molecular_weight>
                <number_of_copies>10</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GKVQIINKKLDLSNVQSKCGSKDNIKHVPGGGIVQIVYKPVDLSKVTSKCGSLGNIHHKPGGGQVEVKSEKLDFKDRVQS
KIGSLDNITHVPGGGNKKIETHKLTFR</string>
                    <external_references type="UNIPROTKB">P10636</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>helical</method>
            <aggregation_state>tissue</aggregation_state>
            <specimen_preparation_list>
                <helical_preparation preparation_id="1">
                    <buffer>
                        <ph>7.4</ph>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>GOLD</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                            <film_thickness>12.0</film_thickness>
                        </support_film>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </helical_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <helical_microscopy microscopy_id="1">
                    <microscope>TFS 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>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
                    <nominal_defocus_min units="µm">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="µm">1.8</nominal_defocus_max>
                    <calibrated_magnification>105000.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>7393</number_real_images>
                            <average_exposure_time units="s">5.4</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">46.0</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">4.83</delta_z>
                            <delta_phi units="deg">178.8</delta_phi>
                            <axial_symmetry>C1</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <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>5.0.0</version>
                        </software>
                    </software_list>
                    <number_images_used>42794</number_images_used>
                </final_reconstruction>
                <ctf_correction>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
                </ctf_correction>
                <startup_model type_of_model="INSILICO MODEL"/>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                </final_angle_assignment>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="108001">
        <file>emd_75196.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>300</col>
            <row>300</row>
            <sec>300</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>300</x>
            <y>300</y>
            <z>300</z>
        </spacing>
        <cell>
            <a units="Å">250.2</a>
            <b units="Å">250.2</b>
            <c units="Å">250.2</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>
        </axis_order>
        <statistics>
            <minimum>-0.03273003</minimum>
            <maximum>0.05386381</maximum>
            <average>0.00005883607</average>
            <std>0.0012101403</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.834</x>
            <y units="Å">0.834</y>
            <z units="Å">0.834</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.00836</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-75196::::</label>
        <annotation_details>S305I Type II Fold Map</annotation_details>
    </map>
    <interpretation>
        <segmentation_list>
            <segmentation>
                <file>emd_75196_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="108001">
                <file>emd_75196_half_map_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>300</col>
                    <row>300</row>
                    <sec>300</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>300</x>
                    <y>300</y>
                    <z>300</z>
                </spacing>
                <cell>
                    <a units="Å">250.2</a>
                    <b units="Å">250.2</b>
                    <c units="Å">250.2</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>
                </axis_order>
                <statistics>
                    <minimum>-0.026198829</minimum>
                    <maximum>0.03732929</maximum>
                    <average>0.0012913691</average>
                    <std>0.002767464</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.834</x>
                    <y units="Å">0.834</y>
                    <z units="Å">0.834</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-75196::::</label>
                <annotation_details>S305I Type II Fold Half-map 1 from the 3D Refinement</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="108001">
                <file>emd_75196_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>300</col>
                    <row>300</row>
                    <sec>300</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>300</x>
                    <y>300</y>
                    <z>300</z>
                </spacing>
                <cell>
                    <a units="Å">250.2</a>
                    <b units="Å">250.2</b>
                    <c units="Å">250.2</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>
                </axis_order>
                <statistics>
                    <minimum>-0.02414522</minimum>
                    <maximum>0.038307786</maximum>
                    <average>0.0013213118</average>
                    <std>0.0027838824</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.834</x>
                    <y units="Å">0.834</y>
                    <z units="Å">0.834</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-75196::::</label>
                <annotation_details>S305I Type II Fold Half-map 2 from the 3D Refinement</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
