<emd emdb_id="EMD-5775" version="3.0.1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_1_1/emdb_relaxed.xsd">
    <admin>
        <current_status>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2013-10-24</deposition>
            <header_release>2013-11-20</header_release>
            <map_release>2013-12-11</map_release>
            <update>2014-07-23</update>
        </key_dates>
        <title>Cryo-EM reconstruction of a authentic 70S-tRNA2-mRNA-EF-G translocation intermediate</title>
        <authors_list>
            <author>Ramrath DJF</author>
            <author>Lancaster L</author>
            <author>Sprink T</author>
            <author>Mielke T</author>
            <author>Loerke J</author>
            <author>Noller HF</author>
            <author>Spahn CMT</author>
        </authors_list>
        <keywords>ribosome, translocation, tRNAs, mRNA, EF-G, head-swivel</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Ramrath DJ</author>
                    <author order="2">Lancaster L</author>
                    <author order="3">Sprink T</author>
                    <author order="4">Mielke T</author>
                    <author order="5">Loerke J</author>
                    <author order="6">Noller HF</author>
                    <author order="7">Spahn CM</author>
                    <title>Visualization of two transfer RNAs trapped in transit during elongation factor G-mediated translocation.</title>
                    <journal>PROC.NAT.ACAD.SCI.USA</journal>
                    <volume>110</volume>
                    <first_page>20964</first_page>
                    <last_page>20969</last_page>
                    <year>2013</year>
                    <external_references type="PUBMED">24324168</external_references>
                    <external_references type="DOI">doi:10.1073/pnas.1320387110</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>4v7b</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>ribosomal 70S-EF-G complex at an authentic intermediate state during translocation</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>ribosomal 70S-EF-G complex at an authentic intermediate state during translocation</name>
                <number_unique_components>5</number_unique_components>
                <molecular_weight>
                    <experimental units="MDa">3</experimental>
                    <theoretical units="MDa">3</theoretical>
                    <method>sedimentation</method>
                </molecular_weight>
            </sample_supramolecule>
            <complex_supramolecule supramolecule_id="1">
                <name>70S ribosome</name>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                    <strain>K-12</strain>
                </natural_source>
                <recombinant_expression database="NCBI" />
                <molecular_weight>
                    <experimental units="MDa">3</experimental>
                    <theoretical units="MDa">3</theoretical>
                </molecular_weight>
                <ribosome-details>ribosome-prokaryote: ALL</ribosome-details>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name synonym="EF-G">Elongation Factor G</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                    <strain>K-12</strain>
                </natural_source>
                <number_of_copies>1</number_of_copies>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <recombinant_expression database="NCBI" />
                <sequence />
            </protein_or_peptide>
            <rna macromolecule_id="2">
                <name>modified formyl-methionine specific initiator transfer RNA</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                    <strain>K-12</strain>
                </natural_source>
                <classification>TRANSFER</classification>
                <structure>DOUBLE HELIX</structure>
                <synthetic_flag>false</synthetic_flag>
            </rna>
            <rna macromolecule_id="3">
                <name>formyl-methionine specific initiator transfer RNA</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                    <strain>K-12</strain>
                </natural_source>
                <classification>TRANSFER</classification>
                <structure>DOUBLE HELIX</structure>
                <synthetic_flag>false</synthetic_flag>
            </rna>
            <rna macromolecule_id="4">
                <name>messenger RNA</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                    <strain>K-12</strain>
                </natural_source>
                <classification>OTHER</classification>
                <structure>SINGLE STRANDED</structure>
                <synthetic_flag>false</synthetic_flag>
            </rna>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">0.15</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <details>80 mM HEPES potassium, 75 mM NH4Cl, 10 mM MgCl2, 6 mM BME</details>
                    </buffer>
                    <grid>
                        <details>Quantifoil R3-3 Cu 300 mesh with 2 nm carbon support film</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">96</chamber_temperature>
                        <instrument>FEI VITROBOT MARK I</instrument>
                        <method>blot for 5-10 seconds before plunging</method>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI POLARA 300</microscope>
                    <illumination_mode>SPOT SCAN</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="&#181;m">2.0</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">5.0</nominal_defocus_max>
                    <nominal_magnification>39000.0</nominal_magnification>
                    <calibrated_magnification>39000.0</calibrated_magnification>
                    <specimen_holder_model>GATAN HELIUM</specimen_holder_model>
                    <date>2010-06-14</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                            <digitization_details>
                                <scanner>PRIMESCAN</scanner>
                                <sampling_interval units="&#181;m">4.7</sampling_interval>
                            </digitization_details>
                            <number_real_images>308</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">20</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <ctf_correction>
                    <details>each defocus group</details>
                </ctf_correction>
                <final_reconstruction>
                    <resolution res_type="BY AUTHOR" units="&#8491;">6.8</resolution>
                    <resolution_method>OTHER</resolution_method>
                    <software_list>
                        <software>
                            <name>spider</name>
                        </software>
                    </software_list>
                    <number_images_used>279309</number_images_used>
                </final_reconstruction>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="105470">
        <file>emd_5775.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>300</col>
            <row>300</row>
            <sec>300</sec>
        </dimensions>
        <origin>
            <col>-150</col>
            <row>-150</row>
            <sec>-150</sec>
        </origin>
        <spacing>
            <x>300</x>
            <y>300</y>
            <z>300</z>
        </spacing>
        <cell>
            <a units="&#8491;">378.0</a>
            <b units="&#8491;">378.0</b>
            <c units="&#8491;">378.0</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>-5.07783175</minimum>
            <maximum>12.70241165</maximum>
            <average>0.1971412</average>
            <std>0.87503892</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">1.26</x>
            <y units="&#8491;">1.26</y>
            <z units="&#8491;">1.26</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>3.0</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>reconstruction of an in vitro prepared 70S-tRNA2-mRNA-EF-G complex</annotation_details>
        <details>::::EMDATABANK.org::::EMD-5775::::</details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>4KIX</access_code>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <software_list>
                    <software>
                        <name>Chimera</name>
                    </software>
                </software_list>
                <refinement_space>REAL</refinement_space>
            </modelling>
            <modelling>
                <initial_model>
                    <access_code>4KIY</access_code>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <software_list>
                    <software>
                        <name>Chimera</name>
                    </software>
                </software_list>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
        <figure_list>
            <figure>
                <file>emd_5775.png</file>
            </figure>
        </figure_list>
    </interpretation>
</emd>