<?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-22169">
    <admin>
        <current_status>
            <date>2024-03-06</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-06-15</deposition>
            <header_release>2020-10-07</header_release>
            <map_release>2020-10-07</map_release>
            <update>2024-03-06</update>
        </key_dates>
        <title>Molecular structure of the core of amyloid-like fibrils formed by residues 111-214 of FUS</title>
        <authors_list>
            <author>Tycko R</author>
            <author>Lee M</author>
        </authors_list>
        <keywords>Low complexity domain, Protein aggregation, Amyloid Fibril, RNA BINDING PROTEIN, PROTEIN FIBRIL</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Lee M</author>
                    <author order="2">Ghosh U</author>
                    <author order="3">Thurber KR</author>
                    <author order="4">Kato M</author>
                    <author ORCID="0000-0001-7039-7275" order="5">Tycko R</author>
                    <title>Molecular structure and interactions within amyloid-like fibrils formed by a low-complexity protein sequence from FUS.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>11</volume>
                    <first_page>5735</first_page>
                    <last_page>5735</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">33184287</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-020-19512-3</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6xfm</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>FUS low complexity sequence</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>FUS low complexity sequence</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>C-terminal domain of FUS low complexity domain (111-214)</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="kDa/nm">40.4</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>RNA-binding protein FUS</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.010024783999999998</theoretical>
                </molecular_weight>
                <number_of_copies>8</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GSYGSSSQSSSYGQPQSGSYSQQPSYGGQQQSYGQQQSYNPPQGYGQQNQYNSSSGGGGGGGGGGNYGQDQSSMSSGGGS
GGGYGNQDQSGGGGSGGYGQGDRG</string>
                    <external_references type="UNIPROTKB">P35637</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>helicalArray</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">0.4</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <formula>C4H11NO3</formula>
                            <name>Tris HCl</name>
                        </component>
                        <details>20 mM 2-mercaptoethanol, 0.1 mM PMSF</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>COPPER</material>
                        <mesh>300</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>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">60</time>
                            <pressure units="kPa">0.039</pressure>
                        </pretreatment>
                        <details>The grid was glow discharged immediately before use.</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">99</chamber_humidity>
                        <chamber_temperature units="K">93</chamber_temperature>
                        <instrument>LEICA PLUNGER</instrument>
                        <details>Preblot for 10 seconds and blot for 5 seconds before plunging. </details>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_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">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.5</nominal_defocus_max>
                    <nominal_magnification>130000.0</nominal_magnification>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <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>SUPER-RESOLUTION</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3800</width>
                                    <height units="pixel">3700</height>
                                </dimensions>
                            </digitization_details>
                            <number_grids_imaged>2</number_grids_imaged>
                            <number_real_images>2404</number_real_images>
                            <average_exposure_time units="s">6.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">47.0</average_electron_dose_per_image>
                            <details>58185 fibril segments were manually selected from 2404 micrographs</details>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <details>Gatan Imaging Filter (GIF) Quantum LS</details>
                <particle_selection>
                    <number_selected>499206</number_selected>
                    <details>499206 of particles were extracted from the 58185 fibril segments using a 400-pixel box size and 91.6% overlap.</details>
                </particle_selection>
                <startup_model type_of_model="NONE">
                    <details>featureless cylinder</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">2.62</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                    <details>3D refinement and post-processing were performed with 21 (screw) symmetry</details>
                    <number_images_used>275520</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                    <details>4.8-Angstrom helical rise and -2.0 degree helical twist</details>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>3</number_classes>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0</version>
                        </software>
                    </software_list>
                    <details>The major class which contains 69% of the particles was selected for further refinement</details>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="256001">
        <file>emd_22169.map.gz</file>
        <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>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>400</x>
            <y>400</y>
            <z>400</z>
        </spacing>
        <cell>
            <a units="Å">429.6</a>
            <b units="Å">429.6</b>
            <c units="Å">429.6</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>-0.10251353</minimum>
            <maximum>0.19740163</maximum>
            <average>0.00006598027</average>
            <std>0.0028924437</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.074</x>
            <y units="Å">1.074</y>
            <z units="Å">1.074</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.02</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-22169::::</label>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>OTHER</refinement_protocol>
                <details>Manually generated model was fit into the density using PHENIX and UCSF Chimera.  Further refinements were performed using Xplor-NIH.</details>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
