<emd emdb_id="EMD-5048" 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>2009-01-20</deposition>
            <header_release>2009-02-09</header_release>
            <map_release>2009-04-15</map_release>
            <update>2009-04-15</update>
        </key_dates>
        <title>CLIC2-RyR1 interaction and structural characterization by  cryo-electron microscopy</title>
        <authors_list>
            <author>Meng X</author>
            <author>Wang G</author>
            <author>Viero C</author>
            <author>Wang Q</author>
            <author>Mi W</author>
            <author>Su X</author>
            <author>Wagenknecht T</author>
            <author>Williams A</author>
            <author>Liu Z</author>
            <author>Yin C-C</author>
        </authors_list>
        <keywords>Ca2+-release channel, Ca2+ signaling, Chloride intracellular channel 2, cryo-electron microscopy, ryanodine receptor</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Meng X</author>
                    <author order="2">Wang G</author>
                    <author order="3">Viero C</author>
                    <author order="4">Wang Q</author>
                    <author order="5">Mi W</author>
                    <author order="6">Su XD</author>
                    <author order="7">Wagenknecht T</author>
                    <author order="8">Williams AJ</author>
                    <author order="9">Liu Z</author>
                    <author order="10">Yin CC</author>
                    <title>CLIC2-RyR1 interaction and structural characterization by cryo-electron microscopy.</title>
                    <journal>J.MOL.BIOL.</journal>
                    <volume>387</volume>
                    <first_page>320</first_page>
                    <last_page>334</last_page>
                    <year>2009</year>
                    <external_references type="PUBMED">19356589</external_references>
                    <external_references type="DOI">doi:10.1016/j.jmb.2009.01.059</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Skeletal muscle ryanodine receptor and chloride intracellular channel 2 complex</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Skeletal muscle ryanodine receptor and chloride intracellular channel 2 complex</name>
                <oligomeric_state>Four CLIC2 molecules binds to one homotetramer of RyR1</oligomeric_state>
                <number_unique_components>2</number_unique_components>
                <molecular_weight>
                    <experimental units="MDa">0.565</experimental>
                    <theoretical units="MDa">0.565</theoretical>
                    <method>Sequencing</method>
                </molecular_weight>
            </sample_supramolecule>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name synonym="SR">sarcoplasmic reticulum</name>
                <number_of_copies>1</number_of_copies>
                <oligomeric_state>Tetramer</oligomeric_state>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <natural_source database="NCBI">
                    <organism ncbi="32644">unidentified</organism>
                    <synonym_organism>rabbit</synonym_organism>
                    <tissue>skeletal muscle</tissue>
                    <organelle>sarcoplasmic reticulum</organelle>
                    <cellular_location>sarcoplasmic reticulum membrane</cellular_location>
                </natural_source>
                <molecular_weight>
                    <experimental units="MDa">2.3</experimental>
                    <theoretical units="MDa">2.3</theoretical>
                </molecular_weight>
                <recombinant_expression database="NCBI" />
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_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">0.05</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <details>20 mM Na-MOPS, pH7.4, 200 mM NaCl, 2.0 mM EGTA, 0.5% CHAPS, 2 mM DTT, and 2.0 ug/ml leupeptin</details>
                    </buffer>
                    <grid>
                        <details>300 mesh copper grid</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">85</chamber_humidity>
                        <instrument>OTHER</instrument>
                        <details>Vitrification instrument: FEI Vitrobot</details>
                        <method>Blot for 2 seconds before plunging</method>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI F20</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_cs units="mm">2.0</nominal_cs>
                    <nominal_defocus_min units="&#181;m">1.5</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">4.5</nominal_defocus_max>
                    <nominal_magnification>50000.0</nominal_magnification>
                    <calibrated_magnification>50760.0</calibrated_magnification>
                    <specimen_holder_model>OTHER</specimen_holder_model>
                    <temperature>
                        <temperature_average units="K">90</temperature_average>
                    </temperature>
                    <alignment_procedure>
                        <legacy>
                            <astigmatism>objective lens astigmatism was corrected at 100,000 times magnification</astigmatism>
                        </legacy>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                            <digitization_details>
                                <scanner>ZEISS SCAI</scanner>
                                <sampling_interval units="&#181;m">7.0</sampling_interval>
                            </digitization_details>
                            <number_real_images>258</number_real_images>
                            <average_electron_dose_per_image units="e/&#8491;^2">10</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                    <specimen_holder>Oxford CT3500</specimen_holder>
                    <tilt_angle_min>0</tilt_angle_min>
                    <tilt_angle_max>50</tilt_angle_max>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <ctf_correction>
                    <details>Each particle</details>
                </ctf_correction>
                <final_reconstruction>
                    <algorithm>OTHER</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">25.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>Spider</name>
                        </software>
                    </software_list>
                    <number_images_used>15889</number_images_used>
                </final_reconstruction>
                <final_two_d_classification>
                    <number_classes>1</number_classes>
                </final_two_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="4523">
        <file>emd_5048.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>105</col>
            <row>105</row>
            <sec>105</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>105</x>
            <y>105</y>
            <z>105</z>
        </spacing>
        <cell>
            <a units="&#8491;">579.6</a>
            <b units="&#8491;">579.6</b>
            <c units="&#8491;">579.6</c>
            <alpha units="deg">90</alpha>
            <beta units="deg">90</beta>
            <gamma units="deg">90</gamma>
        </cell>
        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
        </axis_order>
        <statistics>
            <minimum>-0.000770187</minimum>
            <maximum>0.00310774</maximum>
            <average>0.0000264358</average>
            <std>0.00018949</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">5.52</x>
            <y units="&#8491;">5.52</y>
            <z units="&#8491;">5.52</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.00041</level>
            </contour>
        </contour_list>
        <annotation_details>This is an image of a surface rendered side view of RyR1-CLIC2 complex</annotation_details>
        <details>::::EMDATABANK.org::::EMD-5048::::</details>
    </map>
</emd>