<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_2/emdb.xsd" version="3.0.9.2" emdb_id="EMD-7618">
    <admin>
        <current_status>
            <date>2024-03-13</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-03-23</deposition>
            <header_release>2018-04-18</header_release>
            <map_release>2018-09-12</map_release>
            <update>2024-03-13</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>XSEDE</funding_body>
                <code>MCB140140</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>1R01GM071940</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>1R01AI094386</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Alpha Synuclein fibril formed by full length protein - Rod Polymorph</title>
        <authors_list>
            <author>Li B</author>
            <author>Hatami A</author>
        </authors_list>
        <keywords>Parkinson's disease, Synucleinopathy, Amyloid aggregation, Fibril polymorphism, PROTEIN FIBRIL</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Li B</author>
                    <author order="2">Ge P</author>
                    <author order="3">Murray KA</author>
                    <author order="4">Sheth P</author>
                    <author order="5">Zhang M</author>
                    <author order="6">Nair G</author>
                    <author ORCID="0000-0003-0874-9043" order="7">Sawaya MR</author>
                    <author order="8">Shin WS</author>
                    <author ORCID="0000-0002-4487-0230" order="9">Boyer DR</author>
                    <author order="10">Ye S</author>
                    <author ORCID="0000-0003-2432-5419" order="11">Eisenberg DS</author>
                    <author order="12">Zhou ZH</author>
                    <author ORCID="0000-0003-3039-1877" order="13">Jiang L</author>
                    <title>Cryo-EM of full-length alpha-synuclein reveals fibril polymorphs with a common structural kernel.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>9</volume>
                    <first_page>3609</first_page>
                    <last_page>3609</last_page>
                    <year>2018</year>
                    <external_references type="PUBMED">30190461</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-018-05971-2</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6cu7</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Alpha-synuclein fibril - rod polymorph</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Alpha-synuclein fibril - rod polymorph</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>
            </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">0.014476108</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>MDVFMKGLSKAKEGVVAAAEKTKQGVAEAAGKTKEGVLYVGSKTKEGVVHGVATVAEKTKEQVTNVGGAVVTGVTAVAQK
TVEGAGSIAAATGFVKKDQLGKNEEGAPQEGILEDMPVDPDNEAYEMPSEEGYQDYEPEA</string>
                    <external_references type="UNIPROTKB">P37840</external_references>
                </sequence>
            </protein_or_peptide>
        </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>3.0</ph>
                        <component>
                            <concentration units="mM">15.0</concentration>
                            <formula>C16H36BrP</formula>
                            <name>tetrabutylphosphonium bromide</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY ARRAY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">240</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                        <details>Quantifoil grid was treated with 1,2-Dichloroethane for one week, coated with additional carbon, and baken under 120kV in Camera chamber for 3 days</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">295</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>blot force: 1
blot time: 4s. </details>
                    </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>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">2.7</nominal_defocus_min>
                    <calibrated_defocus_min units="µm">1.5</calibrated_defocus_min>
                    <nominal_defocus_max units="µm">2.7</nominal_defocus_max>
                    <calibrated_defocus_max units="µm">4.0</calibrated_defocus_max>
                    <nominal_magnification>130000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min units="K">77.0</temperature_min>
                        <temperature_max units="K">77.0</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Quantum LS</name>
                            <lower_energy_threshold units="eV">-10</lower_energy_threshold>
                            <upper_energy_threshold units="eV">10</upper_energy_threshold>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3838</width>
                                    <height units="pixel">3710</height>
                                </dimensions>
                                <frames_per_image>3-20</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>1821</number_real_images>
                            <average_exposure_time units="s">10.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">30.0</average_electron_dose_per_image>
                            <details>Frame rate 5 Hz</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>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="Å">2.4</delta_z>
                            <delta_phi units="deg">179.53</delta_phi>
                            <axial_symmetry>C1</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">3.5</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.0</version>
                        </software>
                    </software_list>
                    <number_images_used>23830</number_images_used>
                </final_reconstruction>
                <segment_selection>
                    <number_selected>182253</number_selected>
                </segment_selection>
                <startup_model type_of_model="NONE">
                    <details>A elongated Gaussian blob was used for initial model.</details>
                </startup_model>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.0</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="28312">
        <file>emd_7618.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>192</col>
            <row>192</row>
            <sec>192</sec>
        </dimensions>
        <origin>
            <col>-96</col>
            <row>-96</row>
            <sec>-96</sec>
        </origin>
        <spacing>
            <x>192</x>
            <y>192</y>
            <z>192</z>
        </spacing>
        <cell>
            <a units="Å">205.44</a>
            <b units="Å">205.44</b>
            <c units="Å">205.44</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>-0.010801851</minimum>
            <maximum>0.021767166</maximum>
            <average>0.0011070367</average>
            <std>0.0026206695</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.07</x>
            <y units="Å">1.07</y>
            <z units="Å">1.07</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.0085</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-7618::::</label>
        <annotation_details>em-volume_P1.map</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>AB INITIO MODEL</refinement_protocol>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_7618_msk_1.map</file>
            </segmentation>
        </segmentation_list>
    </interpretation>
</emd>
