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    <admin>
        <current_status>
            <date>2024-03-27</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-08-15</deposition>
            <header_release>2020-03-25</header_release>
            <map_release>2020-03-25</map_release>
            <update>2024-03-27</update>
        </key_dates>
        <title>309 K cryoEM structure of Sso-KARI in complex with Mg2+</title>
        <authors_list>
            <author>Chen CY</author>
            <author>Chang YC</author>
            <author>Lin BL</author>
            <author>Huang CH</author>
            <author>Tsai MD</author>
        </authors_list>
        <keywords>Complex, ISOMERASE</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-8576-6061" order="1">Chen CY</author>
                    <author ORCID="0000-0002-0289-3768" order="2">Chang YC</author>
                    <author ORCID="0000-0001-8075-5304" order="3">Lin BL</author>
                    <author ORCID="0000-0001-8281-3192" order="4">Huang CH</author>
                    <author ORCID="0000-0003-1374-0414" order="5">Tsai MD</author>
                    <title>Temperature-Resolved Cryo-EM Uncovers Structural Bases of Temperature-Dependent Enzyme Functions.</title>
                    <journal_abbreviation>J.Am.Chem.Soc.</journal_abbreviation>
                    <country>US</country>
                    <volume>141</volume>
                    <first_page>19983</first_page>
                    <last_page>19987</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31829582</external_references>
                    <external_references type="DOI">doi:10.1021/jacs.9b10687</external_references>
                    <external_references type="ISSN">1520-5126</external_references>
                    <external_references type="ASTM">JACSAT</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6kpk</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>KARI-Mg2+ complex</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>KARI-Mg2+ complex</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="2287">Saccharolobus solfataricus</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Ketol-acid reductoisomerase</name>
                <natural_source database="NCBI">
                    <organism ncbi="2287">Saccharolobus solfataricus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.037229855</theoretical>
                </molecular_weight>
                <number_of_copies>12</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDKTVLDANLDPLKGKTIGVIGYGNQGRVQATIMRENGLNVIVGNVKDKYYELAKKEGFEVYEIDEAVRRSDVALLLIPD
EVMKEVYEKKIAPVLQGKKEFVLDFASGYNVAFGLIRPPKSVDTIMVAPRMVGEGIMDLHKQGKGYPVLLGVKQDASGKA
WDYAKAIAKGIGAIPGGIAVISSFEEEALLDLMSEHTWVPILFGAIKACYDIAVKEYGVSPEAALLEFYASGELAEIARL
IAEEGIFNQMVHHSTTSQYGTLTRMFKYYDVVRRIVENEAKYIWDGSFAKEWSLEQQAGYPVFYRLWELATQSEMAKAEK
ELYKLLGRKVKND</string>
                    <external_references type="UNIPROTKB">A0A157T175</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>MAGNESIUM ION</name>
                <molecular_weight>
                    <theoretical units="MDa">2.4305e-05</theoretical>
                </molecular_weight>
                <number_of_copies>24</number_of_copies>
                <formula>MG</formula>
            </ligand>
        </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">
                    <buffer>
                        <ph>7.5</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </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>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 QUANTUM (4k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">50.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <startup_model type_of_model="OTHER"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">2.3</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>137035</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="174457">
        <file>emd_0749.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>352</col>
            <row>352</row>
            <sec>352</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>352</x>
            <y>352</y>
            <z>352</z>
        </spacing>
        <cell>
            <a units="Å">295.68</a>
            <b units="Å">295.68</b>
            <c units="Å">295.68</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>-3.3334699</minimum>
            <maximum>10.351429</maximum>
            <average>-0.0041861488</average>
            <std>0.39373687</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.84</x>
            <y units="Å">0.84</y>
            <z units="Å">0.84</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>1.43</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-0749::::</label>
        <annotation_details>Sso-KARI dodecameric enzyme in complex with Mg2  and cryoEM sample was prepared at 309 K.</annotation_details>
    </map>
</emd>
