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    <admin>
        <current_status>
            <date>2024-10-23</date>
            <code>REL</code>
            <processing_site>PDBj</processing_site>
        </current_status>
        <sites>
            <deposition>PDBj</deposition>
            <last_processing>PDBj</last_processing>
        </sites>
        <key_dates>
            <deposition>2016-06-29</deposition>
            <header_release>2016-11-02</header_release>
            <map_release>2017-01-18</map_release>
            <update>2024-10-23</update>
        </key_dates>
        <title>Three-dimensional reconstruction of human LRP6 ectodomain complexed with Dkk1</title>
        <authors_list>
            <author>Matoba K</author>
            <author>Mihara E</author>
        </authors_list>
        <keywords>Wnt signaling, Wnt co-receptor, LRP6, glycoprotein, antagonist, Dkk1, conformational change, SIGNALING PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Matoba K</author>
                    <author order="2">Mihara E</author>
                    <author order="3">Tamura-Kawakami K</author>
                    <author order="4">Miyazaki N</author>
                    <author order="5">Maeda S</author>
                    <author order="6">Hirai H</author>
                    <author order="7">Thompson S</author>
                    <author order="8">Iwasaki K</author>
                    <author order="9">Takagi J</author>
                    <title>Conformational Freedom of the LRP6 Ectodomain Is Regulated by N-glycosylation and the Binding of the Wnt Antagonist Dkk1</title>
                    <journal_abbreviation>Cell Rep</journal_abbreviation>
                    <country>US</country>
                    <volume>18</volume>
                    <first_page>32</first_page>
                    <last_page>40</last_page>
                    <year>2017</year>
                    <external_references type="PUBMED">28052259</external_references>
                    <external_references type="DOI">doi:10.1016/j.celrep.2016.12.017</external_references>
                    <external_references type="ISSN">2211-1247</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>5gje</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Human LRP6 ectodomain complexed with full length of Dkk1</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Human LRP6 ectodomain complexed with full length of Dkk1</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>Human Dkk1 fused with human growth hormone at the N-terminal (hGH-Dkk1) was co-expressed with LRP6ec in the HEK293S GnT1- cells.</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.21</theoretical>
                </molecular_weight>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>LRP6 ectodomain</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Human Dickkopf-related protein1</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>N-terminal human growth hormone fused full length of Dkk1</details>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Low-density lipoprotein receptor-related protein 6</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.069034883</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>APLLLYANRRDLRLVDATNGKENATIVVGGLEDAAAVDFVFSHGLIYWSDVSEEAIKRTEFNKTESVQNVVVSGLLSPDG
LACDWLGEKLYWTDSETNRIEVSNLDGSLRKVLFWQELDQPRAIALDPSSGFMYWTDWGEVPKIERAGMDGSSRFIIINS
EIYWPNGLTLDYEEQKLYWADAKLNFIHKSNLDGTNRQAVVKGSLPHPFALTLFEDILYWTDWSTHSILACNKYTGEGLR
EIHSDIFSPMDIHAFSQQRQPNATNPCGIDNGGCSHLCLMSPVKPFYQCACPTGVKLLENGKTCKDGATELLLLARRTDL
RRISLDTPDFTDIVLQLEDIRHAIAIDYDPVEGYIYWTDDEVRAIRRSFIDGSGSQFVVTAQIAHPDGIAVDWVARNLYW
TDTGTDRIEVTRLNGTMRKILISEDLEEPRAIVLDPMVGYMYWTDWGEIPKIERAALDGSDRVVLVNTSLGWPNGLALDY
DEGKIYWGDAKTDKIEVMNTDGTGRRVLVEDKIPHIFGFTLLGDYVYWTDWQRRSIERVHKRSAEREVIIDQLPDLMGLK
ATNVHRVIGSNPCAEENGGCSHLCLYRPQGLRCACPIGFELISDMKTCIVP</string>
                    <external_references type="UNIPROTKB">O75581</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Low-density lipoprotein receptor-related protein 6</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.069810609</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>EAFLLFSRRADIRRISLETNNNNVAIPLTGVKEASALDFDVTDNRIYWTDISLKTISRAFMNGSALEHVVEFGLDYPEGM
AVDWLGKNLYWADTGTNRIEVSKLDGQHRQVLVWKDLDSPRALALDPAEGFMYWTEWGGKPKIDRAAMDGSERTTLVPNV
GRANGLTIDYAKRRLYWTDLDTNLIESSNMLGLNREVIADDLPHPFGLTQYQDYIYWTDWSRRSIERANKTSGQNRTIIQ
GHLDYVMDILVFHSSRQSGWNECASSNGHCSHLCLAVPVGGFVCGCPAHYSLNADNRTCSAPTTFLLFSQKSAINRMVID
EQQSPDIILPIHSLRNVRAIDYDPLDKQLYWIDSRQNMIRKAQEDGSQGFTVVVSSVPSQNLEIQPYDLSIDIYSRYIYW
TCEATNVINVTRLDGRSVGVVLKGEQDRPRAIVVNPEKGYMYFTNLQERSPKIERAALDGTEREVLFFSGLSKPIALALD
SRLGKLFWADSDLRRIESSDLSGANRIVLEDSNILQPVGLTVFENWLYWIDKQQQMIEKIDMTGREGRTKVQARIAQLSD
IHAVKELNLQEYRQHPCAQDNGGCSHICLVKGDGTTRCSCPMHLVLLQDELSCGEP</string>
                    <external_references type="UNIPROTKB">O75581</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Dickkopf-related protein 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.009607075999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>KGQEGSVCLRSSDCASGLCCARHFWSKICKPVLKEGQVCTKHRRKGSHGLEIFQRCYCGEGLSCRIQKDHHQASNSSRLH
TCQRH</string>
                    <external_references type="UNIPROTKB">O94907</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="6">
                <name>PHOSPHATE ION</name>
                <molecular_weight>
                    <theoretical units="MDa">9.4971e-05</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>PO4</formula>
            </ligand>
            <ligand macromolecule_id="7">
                <name>2-acetamido-2-deoxy-beta-D-glucopyranose</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000221208</theoretical>
                </molecular_weight>
                <number_of_copies>3</number_of_copies>
                <formula>NAG</formula>
            </ligand>
            <ligand macromolecule_id="8">
                <name>GLYCEROL</name>
                <molecular_weight>
                    <theoretical units="MDa">9.209399999999999e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>GOL</formula>
            </ligand>
            <ligand macromolecule_id="9">
                <name>water</name>
                <molecular_weight>
                    <theoretical units="MDa">1.8015e-05</theoretical>
                </molecular_weight>
                <number_of_copies>13</number_of_copies>
                <formula>HOH</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>7.2</ph>
                    </buffer>
                    <staining>
                        <type>NONE</type>
                        <material>Uranyl acetate</material>
                    </staining>
                    <grid>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">20</time>
                        </pretreatment>
                    </grid>
                    <details>This sample was monodisperse.</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>HITACHI H-9500SD</microscope>
                    <illumination_mode>SPOT SCAN</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>LAB6</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_cs units="mm">2.8</nominal_cs>
                    <nominal_magnification>80000.0</nominal_magnification>
                    <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>TVIPS TEMCAM-F224 (2k x 2k)</film_or_detector_model>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">2048</width>
                                    <height units="pixel">2048</height>
                                </dimensions>
                            </digitization_details>
                            <average_exposure_time units="s">2.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">20.0</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>
                <details>The selected images were band-pass filtered.</details>
                <particle_selection>
                    <details>10974 tilt pairs for RCT</details>
                </particle_selection>
                <startup_model type_of_model="RANDOM CONICAL TILT">
                    <random_conical_tilt>
                        <number_images>10974</number_images>
                    </random_conical_tilt>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <algorithm>BACK PROJECTION</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">21.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>SPIDER</name>
                        </software>
                    </software_list>
                    <number_images_used>5390</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing>
                        <number_reference_projections>83</number_reference_projections>
                    </projection_matching_processing>
                    <software_list>
                        <software>
                            <name>SPIDER</name>
                        </software>
                    </software_list>
                    <details>The projections generated from RCT were used for initial angle assignment</details>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing>
                        <number_reference_projections>83</number_reference_projections>
                    </projection_matching_processing>
                    <software_list>
                        <software>
                            <name>SPIDER</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="32001">
        <file>emd_9501.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>200</col>
            <row>200</row>
            <sec>200</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>200</x>
            <y>200</y>
            <z>200</z>
        </spacing>
        <cell>
            <a units="Å">440.0</a>
            <b units="Å">440.0</b>
            <c units="Å">440.0</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>-0.079741</minimum>
            <maximum>1.0378006</maximum>
            <average>0.00088656624</average>
            <std>0.036129534</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">2.2</x>
            <y units="Å">2.2</y>
            <z units="Å">2.2</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.198</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-9501::::</label>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>4DG6</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                        <residue_range>1-611</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>3S2K</access_code>
                    <chain>
                        <chain_id>B</chain_id>
                        <residue_range>631-1243</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>3S2K</access_code>
                    <chain>
                        <chain_id>C</chain_id>
                        <residue_range>182-266</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            </modelling>
        </modelling_list>
    </interpretation>
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