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    <admin>
        <current_status>
            <date>2018-02-07</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2017-12-22</deposition>
            <header_release>2018-02-07</header_release>
            <map_release>2018-02-07</map_release>
            <update>2018-02-07</update>
        </key_dates>
        <title>Human Bact spliceosome state 2 unmasked</title>
        <authors_list>
            <author>Haselbach D</author>
            <author>Komarov I</author>
            <author>Agafonov D</author>
            <author>Kastner B</author>
            <author>Luehrmann R</author>
            <author>Stark H</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Haselbach D</author>
                    <author order="2">Komarov I</author>
                    <author order="3">Agafonov DE</author>
                    <author order="4">Hartmuth K</author>
                    <author order="5">Graf B</author>
                    <author order="6">Dybkov O</author>
                    <author order="7">Urlaub H</author>
                    <author order="8">Kastner B</author>
                    <author order="9">Luhrmann R</author>
                    <author order="10">Stark H</author>
                    <title>Structure and Conformational Dynamics of the Human Spliceosomal Bact Complex.</title>
                    <journal_abbreviation>Cell</journal_abbreviation>
                    <volume>172</volume>
                    <first_page>454</first_page>
                    <last_page>464.e11</last_page>
                    <year>2018</year>
                    <external_references type="PUBMED">29361316</external_references>
                    <external_references type="DOI">doi:10.1016/j.cell.2018.01.010</external_references>
                    <external_references type="ISSN">1097-4172</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-4233</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
                <details>another conformational state of this molecule</details>
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            <emdb_reference>
                <emdb_id>EMD-4234</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>human Bact spliceosome state 1 unmasked</name>
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            <complex_supramolecule supramolecule_id="1">
                <name>human Bact spliceosome state 1 unmasked</name>
                <parent>0</parent>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <strain>HELA</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">4.5</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
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        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">0.05</concentration>
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                            <name>HEPES</name>
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                        <component>
                            <concentration units="mM">150.0</concentration>
                            <formula>NaCl</formula>
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                        <component>
                            <concentration units="mM">1.5</concentration>
                            <formula>MgCl2</formula>
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                    <grid>
                        <model>Quantifoil R3.5/1</model>
                        <material>COPPER</material>
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                            <film_topology>HOLEY</film_topology>
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                        <support_film film_type_id="2">
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                            <film_topology>CONTINUOUS</film_topology>
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                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">75</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>LEICA EM GP</instrument>
                        <details>blot with blotting sensor. </details>
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                <single_particle_microscopy microscopy_id="1">
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                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
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                    <nominal_cs units="mm">0.001</nominal_cs>
                    <nominal_defocus_min units="&#181;m">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">4.5</nominal_defocus_max>
                    <nominal_magnification>59000.</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
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                            <residual_tilt units="mrad">14.0</residual_tilt>
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                        <sph_aberration_corrector>Microscope was modified with a Cs corrector with two hexapoles elements</sph_aberration_corrector>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON III (4k x 4k)</film_or_detector_model>
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                                    <height units="pixel">4096</height>
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                            <average_exposure_time units="s">1.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/&#8491;^2">40.0</average_electron_dose_per_image>
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                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
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                        <software>
                            <name>RELION</name>
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                        <software>
                            <name>EMAN2</name>
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                    <type>PROJECTION MATCHING</type>
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                    <software_list>
                        <software>
                            <name>RELION</name>
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                        <software>
                            <name>RELION</name>
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