<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_3/emdb.xsd" version="3.0.9.3" emdb_id="EMD-24691">
    <admin>
        <current_status>
            <date>2024-11-20</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2021-08-15</deposition>
            <header_release>2021-08-25</header_release>
            <map_release>2021-08-25</map_release>
            <update>2024-11-20</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>GM123496</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Cryo-EM structure of a TTYH3 cis-dimer</title>
        <authors_list>
            <author>Li B</author>
            <author>Brohawn SG</author>
        </authors_list>
        <keywords>TTYH2, momomer, MEMBRANE PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-4560-4575" order="1">Li B</author>
                    <author ORCID="0000-0002-1344-0780" order="2">Hoel CM</author>
                    <author ORCID="0000-0001-6768-3406" order="3">Brohawn SG</author>
                    <title>Structures of tweety homolog proteins TTYH2 and TTYH3 reveal a Ca 2+ -dependent switch from intra- to intermembrane dimerization.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>12</volume>
                    <first_page>6913</first_page>
                    <last_page>6913</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">34824283</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-021-27283-8</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>7rtw</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>TTYH2 with Ca2+</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>TTYH2 with Ca2+</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Protein tweety homolog 3</name>
                <natural_source database="NCBI">
                    <organism ncbi="10090">Mus musculus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.05807786299999999</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="40674">Mammalia</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GPAGVSYAAPWWVSLLHRLPHFDLRWEATSSQFRPEDADYQQALLLLGATALACLALDLLFLLFYSFWLCCRRRKTDEHL
DADCCCTAWCVIITTLVCSAGIAVGFYGNGETSDGIHRATYSLRHANRTVAGVQDRVWDTAAALNRTAEPNLQSLERQLA
GRQEPLRAVQRLQTLLGTLLGYTAAIPFWRNPGVSLEVLAEQVDLYDWYRWLGYLGLLLLDVIICLLVLVGLIRSSKGIL
VGVCLLGVLALVISWGALGLELAVSVGSSDFCVDPDTFVTKMVEEHSVLSGDILQYYLACSPRATNPFQQKLSGSHKALV
EMQDVVAELLRNVPREHPATKDPLLRVQEVLNGTEVNLQHLTALVDCRSLHLDYVQALTGFCYDGVEGLIYLALFSFVTA
LMFSSIVCSIPHTWQQKRGPDDDGEEETAPGPRQAHDSLYRVHMPSLYSCGSSYGSEASIPAAAHTVSNAPVTEYMSQNA
NFQNPRCENTPLIGRESPPPSYTSSMRAKYLATSQPRPDSSGSGHSNS</string>
                    <external_references type="UNIPROTKB">Q6P5F7</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="4">
                <name>2-acetamido-2-deoxy-beta-D-glucopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>NAG</formula>
            </ligand>
            <ligand macromolecule_id="5">
                <name>CALCIUM ION</name>
                <molecular_weight>
                    <theoretical units="MDa">4.0078e-05</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>CA</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">
                    <concentration units="mg/mL">1.1</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <details>20 mM Tris pH 8.0, 150 mM NaCl, 1 mM CaCl2</details>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                    </vitrification>
                    <details>This sample was monodisperse</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI ARCTICA</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>OTHER</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">1.0038</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="NONE"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">3.23</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>96285</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.2.0</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.2.0</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.2.0</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="226493">
        <file>emd_24691.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>384</col>
            <row>384</row>
            <sec>384</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>384</x>
            <y>384</y>
            <z>384</z>
        </spacing>
        <cell>
            <a units="Å">436.60797</a>
            <b units="Å">436.60797</b>
            <c units="Å">436.60797</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>Z</fast>
            <medium>Y</medium>
            <slow>X</slow>
        </axis_order>
        <statistics>
            <minimum>-136.766649999999998</minimum>
            <maximum>200.179200000000009</maximum>
            <average>0.000000000005622</average>
            <std>1.0</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.137</x>
            <y units="Å">1.137</y>
            <z units="Å">1.137</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>8.0</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-24691::::</label>
        <annotation_details>TTYH3 cis-dimer</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
