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        <current_status>
            <date>2019-09-18</date>
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            <processing_site>RCSB</processing_site>
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        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
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        <key_dates>
            <deposition>2019-01-20</deposition>
            <header_release>2019-01-30</header_release>
            <map_release>2019-06-26</map_release>
            <update>2019-09-18</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Canadian Institutes of Health Research</funding_body>
                <code>PJT-153044</code>
                <country>Canada</country>
            </grant_reference>
        </grant_support>
        <title>Role of Era in Assembly and Homeostasis of the Ribosomal Small Subunit</title>
        <authors_list>
            <author>Ortega J</author>
            <author>Davis JH</author>
            <author>Hao Y</author>
            <author>Jahagirdar D</author>
            <author>Thurlow B</author>
            <author>Basu K</author>
            <author>Jain N</author>
            <author>Gomez-Blanco J</author>
            <author>Britton RA</author>
            <author>Vargas J</author>
            <author>Guarne A</author>
            <author>Woodson SA</author>
            <author>Williamson JR</author>
            <author>Ortega J</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Razi A</author>
                    <author order="2">Davis JH</author>
                    <author order="3">Hao Y</author>
                    <author order="4">Jahagirdar D</author>
                    <author order="5">Thurlow B</author>
                    <author order="6">Basu K</author>
                    <author order="7">Jain N</author>
                    <author order="8">Gomez-Blanco J</author>
                    <author order="9">Britton RA</author>
                    <author order="10">Vargas J</author>
                    <author order="11">Guarne A</author>
                    <author order="12">Woodson SA</author>
                    <author order="13">Williamson JR</author>
                    <author order="14">Ortega J</author>
                    <title>Role of Era in assembly and homeostasis of the ribosomal small subunit.</title>
                    <journal_abbreviation>Nucleic Acids Res.</journal_abbreviation>
                    <country>UK</country>
                    <volume>47</volume>
                    <first_page>8301</first_page>
                    <last_page>8317</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31265110</external_references>
                    <external_references type="DOI">doi:10.1093/nar/gkz571</external_references>
                    <external_references type="ISSN">1362-4962</external_references>
                    <external_references type="CSD">0389</external_references>
                    <external_references type="ASTM">NARHAD</external_references>
                </journal_citation>
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                <emdb_id>EMD-0484</emdb_id>
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                    <other>associated EM volume</other>
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    <sample>
        <name>Era+YjeQ-treated mature 30S subunit</name>
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                <name>Era+YjeQ-treated mature 30S subunit</name>
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                        <macromolecule_id>1</macromolecule_id>
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                        <macromolecule_id>2</macromolecule_id>
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                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
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                    <macromolecule>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>9</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>10</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>11</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>12</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>13</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>14</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>15</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>16</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>Mature 30S subunits exposed to Era and YjeQ proteins</details>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                    <strain>K-12</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.9</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
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    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <buffer>
                        <ph>7.5</ph>
                    </buffer>
                    <grid>
                        <model>C-flat-2/2</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                        </pretreatment>
                        <details>5 mA</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">298.15</chamber_temperature>
                        <instrument>FEI VITROBOT MARK III</instrument>
                        <details></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>
                    <c2_aperture_diameter units="µm">100.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.25</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.75</nominal_defocus_max>
                    <nominal_magnification>75000.</nominal_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>
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                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI FALCON II (4k x 4k)</film_or_detector_model>
                            <detector_mode>INTEGRATING</detector_mode>
                            <average_electron_dose_per_image units="e/Å^2">28.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
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                    <number_selected>764781</number_selected>
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                            <name>Gctf</name>
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                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>2AVY</pdb_id>
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                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">3.5</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1.0.</version>
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                    <number_images_used>309949</number_images_used>
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                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1.0.</version>
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                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
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                        <software>
                            <name>RELION</name>
                            <version>2.1.0.</version>
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                        <software>
                            <name>RELION</name>
                            <version>2.1.0.</version>
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            <a units="Å">326.192</a>
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