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    <admin>
        <current_status>
            <date>2024-11-06</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-03-07</deposition>
            <header_release>2023-11-08</header_release>
            <map_release>2023-11-08</map_release>
            <update>2024-11-06</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Michael J. Fox Foundation</funding_body>
                <code>MJFF-008121</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/Office of the Director</funding_body>
                <code>OD020103-01</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/Office of the Director</funding_body>
                <code>OD021685-01A1</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute on Aging (NIH/NIA)</funding_body>
                <code>AG062418</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>GM114537</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Department of Energy (DOE, United States)</funding_body>
                <code>DE-AC02-76SF00515</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Cancer Prevention and Research Institute of Texas (CPRIT)</funding_body>
                <code>RP170644</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM structure of serine 87 O-GlcNAc-modified alpha-synuclein fibrils</title>
        <authors_list>
            <author>Balana JA</author>
            <author>Nguyen AB</author>
            <author>Saelices L</author>
            <author>Pratt RM</author>
        </authors_list>
        <keywords>alpha-synuclein, O-GlcNAc, amyloid, fibril, posttranslational modification, PROTEIN FIBRIL</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Balana AT</author>
                    <author order="2">Mahul-Mellier AL</author>
                    <author order="3">Nguyen BA</author>
                    <author order="4">Horvath M</author>
                    <author order="5">Javed A</author>
                    <author order="6">Hard ER</author>
                    <author order="7">Jasiqi Y</author>
                    <author order="8">Singh P</author>
                    <author order="9">Afrin S</author>
                    <author order="10">Pedretti R</author>
                    <author order="11">Singh V</author>
                    <author order="12">Lee VM</author>
                    <author order="13">Luk KC</author>
                    <author order="14">Saelices L</author>
                    <author order="15">Lashuel HA</author>
                    <author order="16">Pratt MR</author>
                    <title>O-GlcNAc forces an alpha-synuclein amyloid strain with notably diminished seeding and pathology.</title>
                    <journal_abbreviation>Nat.Chem.Biol.</journal_abbreviation>
                    <country>US</country>
                    <volume>20</volume>
                    <first_page>646</first_page>
                    <last_page>655</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">38347213</external_references>
                    <external_references type="DOI">doi:10.1038/s41589-024-01551-2</external_references>
                    <external_references type="ISSN">1552-4469</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>8gf7</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>alpha-synuclein fibrils</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>alpha-synuclein fibrils</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>The protein is semi-synthesized.</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Alpha-synuclein</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.008781004999999998</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GLSKAKEGVVAAAEKTKQGVAEAAGKTKEGVLYVGSKTKEGVVHGVATVAEKTKEQVTNVGGAVVTGVTAVAQKTVEGAG
SIAAATGFVK</string>
                    <external_references type="UNIPROTKB">P37840</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>2-acetamido-2-deoxy-beta-D-glucopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <formula>NAG</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>helical</method>
            <aggregation_state>filament</aggregation_state>
            <specimen_preparation_list>
                <helical_preparation preparation_id="1">
                    <buffer>
                        <ph>7.4</ph>
                        <details>normal PBS</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>COPPER</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">30</time>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                    </vitrification>
                </helical_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <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_defocus_min units="µm">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.2</nominal_defocus_max>
                    <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>2</number_grids_imaged>
                            <number_real_images>7270</number_real_images>
                            <average_exposure_time units="s">3.6</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">40.0</average_electron_dose_per_image>
                            <details>3 shots per hole</details>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="Å">4.926</delta_z>
                            <delta_phi units="deg">-0.7</delta_phi>
                            <axial_symmetry>C1</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">4.8</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1</version>
                        </software>
                    </software_list>
                    <number_images_used>22042</number_images_used>
                </final_reconstruction>
                <startup_model type_of_model="INSILICO MODEL">
                    <insilico_model>initial model was generated by RELION</insilico_model>
                </startup_model>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.1</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="131073">
        <file>emd_29980.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>320</col>
            <row>320</row>
            <sec>320</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>320</x>
            <y>320</y>
            <z>320</z>
        </spacing>
        <cell>
            <a units="Å">275.2</a>
            <b units="Å">275.2</b>
            <c units="Å">275.2</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>-0.01101611</minimum>
            <maximum>0.01869823</maximum>
            <average>0.00044501404</average>
            <std>0.0018156363</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.86</x>
            <y units="Å">0.86</y>
            <z units="Å">0.86</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.007</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-29980::::</label>
        <annotation_details>main map. This map was used to build model</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>6A6B</access_code>
                    <chain>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_29980_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <additional_map_list>
            <additional_map format="CCP4" size_kbytes="131073">
                <file>emd_29980_additional_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>320</col>
                    <row>320</row>
                    <sec>320</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>320</x>
                    <y>320</y>
                    <z>320</z>
                </spacing>
                <cell>
                    <a units="Å">275.2</a>
                    <b units="Å">275.2</b>
                    <c units="Å">275.2</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>-0.006658226</minimum>
                    <maximum>0.013376723</maximum>
                    <average>0.00038773744</average>
                    <std>0.0015676836</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.86</x>
                    <y units="Å">0.86</y>
                    <z units="Å">0.86</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-29980::::</label>
                <annotation_details>this map was reconstructed from 3Drefine step in RELION</annotation_details>
            </additional_map>
        </additional_map_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="131073">
                <file>emd_29980_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>320</col>
                    <row>320</row>
                    <sec>320</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>320</x>
                    <y>320</y>
                    <z>320</z>
                </spacing>
                <cell>
                    <a units="Å">275.2</a>
                    <b units="Å">275.2</b>
                    <c units="Å">275.2</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>-0.01983974</minimum>
                    <maximum>0.02786685</maximum>
                    <average>0.00039025777</average>
                    <std>0.0028471637</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.86</x>
                    <y units="Å">0.86</y>
                    <z units="Å">0.86</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-29980::::</label>
                <annotation_details>half map 2</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="131073">
                <file>emd_29980_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>320</col>
                    <row>320</row>
                    <sec>320</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>320</x>
                    <y>320</y>
                    <z>320</z>
                </spacing>
                <cell>
                    <a units="Å">275.2</a>
                    <b units="Å">275.2</b>
                    <c units="Å">275.2</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>-0.020170525</minimum>
                    <maximum>0.028888915</maximum>
                    <average>0.0003851515</average>
                    <std>0.0028438102</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.86</x>
                    <y units="Å">0.86</y>
                    <z units="Å">0.86</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-29980::::</label>
                <annotation_details>half map 1</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
