<?xml version="1.0" encoding="UTF-8"?>
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    <admin>
        <current_status>
            <date>2024-03-20</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-08-03</deposition>
            <header_release>2019-11-13</header_release>
            <map_release>2019-12-11</map_release>
            <update>2024-03-20</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)</funding_body>
                <code>DE028583, DE025567</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>AI094386</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>1S10RR23057, 1S10OD018111, and 1U24GM116792</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>DBI-1338135 and DMR-1548924</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Atomic structure of the Human Herpesvirus 6B Capsid and Capsid-Associated Tegument Complexes</title>
        <authors_list>
            <author>Zhang YB</author>
            <author>Liu W</author>
        </authors_list>
        <keywords>beta-herpesvirus, HHV-6B, murine cytomegalovirus, human cytomegalovirus, pp150, pU11, pUL32, pM32, pU14, VIRUS</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-0643-987X" order="1">Zhang Y</author>
                    <author order="2">Liu W</author>
                    <author ORCID="0000-0002-4625-9283" order="3">Li Z</author>
                    <author ORCID="0000-0002-5239-7156" order="4">Kumar V</author>
                    <author order="5">Alvarez-Cabrera AL</author>
                    <author order="6">Leibovitch EC</author>
                    <author ORCID="0000-0002-8909-6576" order="7">Cui Y</author>
                    <author ORCID="0000-0002-3953-8508" order="8">Mei Y</author>
                    <author ORCID="0000-0001-8735-3818" order="9">Bi GQ</author>
                    <author order="10">Jacobson S</author>
                    <author ORCID="0000-0002-8373-4717" order="11">Zhou ZH</author>
                    <title>Atomic structure of the human herpesvirus 6B capsid and capsid-associated tegument complexes.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>10</volume>
                    <first_page>5346</first_page>
                    <last_page>5346</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31767868</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-019-13064-x</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-20558</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-20559</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-20560</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6q1f</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Human herpesvirus 6 strain Z29</name>
        <supramolecule_list>
            <virus_supramolecule supramolecule_id="1">
                <name>Human herpesvirus 6 strain Z29</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <sci_species_name ncbi="36351">Human herpesvirus 6 strain Z29</sci_species_name>
                <sci_species_strain>Z29</sci_species_strain>
                <virus_type>VIRION</virus_type>
                <virus_isolate>STRAIN</virus_isolate>
                <virus_enveloped>true</virus_enveloped>
                <virus_empty>false</virus_empty>
            </virus_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Major capsid protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="36351">Human herpesvirus 6B (strain Z29)</organism>
                    <strain>Z29</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.15226004699999998</theoretical>
                </molecular_weight>
                <number_of_copies>16</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MENWQATEILPKIEAPLNIFNDIKTYTAEQLFDNLRIYFGDDPSRYNISFEALLGIYCNKIEWINFFTTPIAVAANVIRF
NDVSRMTLGKVLFFIQLPRVATGNDVTAPKETTIMVAKHSEKHPINISFDLSAACLEHLENTFKNTVIDQILNINALHTV
LRSLKNSADSLERGLIHAFMQTLLRKSPPQFIVLTMNENKVHNKQALSRVQRSNMFQSLKNRLLTSLFFLNRNNNSSYIY
RILNDMMESVTESILNDTNNYTSKENIPLDGVLLGPIGSIQKLTNILSQYISTQVVSAPISYGHFIMGKENAVTAIAYRA
IMADFTQFTVNAGTEQQDTNNKSEIFDKSRAYADLKLNTLKLGDKLVAFDHLHKVYKNTDVNDPLEQSLQLTFFFPLGIY
IPTETGFSTMETRVKLNDTMENNLPTSVFFHNKDQVVQRIDFADILPSVCHPIVHDSTIVERLMKNEPLPTGHRFSQLCQ
LKITRENPTRILQTLYNLYESRQEVPKNTNVLKNELNVEDFYKPDNPTLPTERHPFFDLTYIQKNRATEVLCTPRIMIGN
MPLPLAPISFHEARTNQMLEHAKTNSHNYDFTLKIVTESLTSGSYPELAYVIEILVHGNKHAFMILKQVISQCISYWFNM
KHILLFCNSFEMIMLISNHMGDELIPGAAFAHYRNLVSLIRLVKRTISISNINEQLCGEPLVNFANALFDGRLFCPFVHT
MPRNDTNAKITADDTPLTQNTVRVRNYEISDVQRMNLIDSSVVFTDNDRPSNENTILSKIFYFCVLPALSNNKACGAGVN
VKELVLDLFYTEPFICPDDCFQENPISSDVLMSLIREAMGPGYTVANTSSIAKQLFKSLIYINENTKILEVEVSLDPAQR
HGNSVHFQSLQHILYNGLCLISPITTLRRYYQPIPFHRFFSDPGICGTMNADIQVFLNTFPHYQRNDGGFPLPPPLALEF
YNWQRTPFSVYSAFCPNSLLSIMTLAAMHSKLSPVAIAIQSKSKIHPGFAATLVRTDNFDVECLLYSSRAATSIILDDPT
VTAEAKDIVTTYNFTQHLSFVDMGLGFSSTTATANLKRIKSDMGSKIQNLFSAFPIHAFTNTDINTWIRHHVGIEKPNPS
EGEALNIITFGGINKNPPSILLHGQQAICEVILTPVTTNINFFKLPHNPRGRESCMMGTDPHNEEAARKALYDHTQTDSD
TFAATTNPWASLPGSLGDILYNTAHREQLCYNPKTYSPNAQFFTESDILKTNKMMYKVINEYCMKSNSCLNSDSEIQYSC
SEGTDSFVSRPCQFLQNALPLHCSSNQALLESRSKTGNTQISETHYCNYAIGETIPLQLIIESSI</string>
                    <external_references type="UNIPROTKB">Q9QJ26</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Large structural phosphoprotein</name>
                <natural_source database="NCBI">
                    <organism ncbi="36351">Human herpesvirus 6B (strain Z29)</organism>
                    <strain>Z29</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.095738125</theoretical>
                </molecular_weight>
                <number_of_copies>12</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDLKAQSIPFAWLDRDKVQRLTNFLSNLENLENVDLREHPYVTNSCVVREGEDVDELKTLYNTFILWLMYHYVLSKRKPD
YNAIWQDITKLQNVVNEYLKSKGLNKGNFENMFTNKEKFESQFSDIHRALLRLGNSIRWGSNVPIDTPYVNLTAEDSSEI
ENNLQDAEKNMLWYTVYNINDPWDENGYLVTSINKLVYLGKLFVTLNQSWSKLEKVAMSQIVTTQNHLSGHLRKNENFNA
VYSQRVLQTPLTGQRVESFLKIITSDYEIIKSSLESYSASKAFSVPENGPHSLMDFASLDGRMPSDLSLPSISIDTKRPS
ADLARLKISQPKSLDAPLKTQRRHKFPESDSVDNAGGKILIKKETLGGRDVRATTPVSSVSLMSGVEPLSSLTSTNLDLR
DKSHGNYRIGPSGILDFGVKLPAEAQSNTGDVDLLQDKTSIRSPSSGITDVVNGLANLNLRQNKSDVSRPWSKNTAANAD
VFDPVHRLVSEQTGTPFVLNNSDVAGSEAKLTTHSTETGVSPHNVSLIKDLRDKDGFRKQKKLDLLGSWTKEKNDKAIVH
SREVTGDSGDATETVTARDSPVLRKTKHANDIFAGLNKKYARDVSRGGKGNSRDLYSGGNAEKKETSGKFNVDKEMTQNE
QEPLPNLMEAARNAGEEQYVQAGLGQRVNKILAEFTNLISLGEKGIQDILHNQSGTELKLPTENKLGRESEEANVERILE
VSDPQNLFKNFKLQNDLDSVQSPFRLPNADLSRDLDSVSFKDALDVKLPGNGEREIDLALQKVKAGERETSDFKVGQDET
LIPTQLMKVETPEEKDDVIEKMVLRIRQDGETDEETVPGPGVAESLGIAAKDKSVIAS</string>
                    <external_references type="UNIPROTKB">Q69535</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Small capsomere-interacting protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="36351">Human herpesvirus 6B (strain Z29)</organism>
                    <strain>Z29</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.009827329</theoretical>
                </molecular_weight>
                <number_of_copies>16</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MTTIRGDDLSNQITQISGSSSKKEEEKKKQQMLTGVLGLQPTMANHPVLGVFLPKYAKQNGGNVDKTAFRLDLIRMLALH
RLNTKTGSD</string>
                    <external_references type="UNIPROTKB">Q9WT32</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>Triplex capsid protein 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="36351">Human herpesvirus 6B (strain Z29)</organism>
                    <strain>Z29</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.034162508</theoretical>
                </molecular_weight>
                <number_of_copies>5</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNSKSSARAAIVDTVEAVKKRKYISIEAGTLNNVVEKERKFLKQFLSGRENLRIAARVFTPCELLAPELENLGMLMYRFE
TDVDNPKILFVGLFFLCSNAFNVSACVRTALTTMYTNSMVDNVLSMINTCKYLEDKVSLFGVTSLVSCGSSCLLSCVMQG
NVYDANKENIHGLTVLKEIFLEPDWEPRQHSTQYVYVVHVYKEVLSKLQYGIYVVLTSFQNEDLVVDILRQYFEKERFLF
LNYLINSNTTLSYFGSVQRIGRCATEDIKSGFLQYRGITLPVIKLENIFVDLSEKKVFV</string>
                    <external_references type="UNIPROTKB">Q9WT35</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="5">
                <name>Triplex capsid protein 2</name>
                <natural_source database="NCBI">
                    <organism ncbi="36351">Human herpesvirus 6B (strain Z29)</organism>
                    <strain>Z29</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.033514332</theoretical>
                </molecular_weight>
                <number_of_copies>10</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>METVYCTFDHKLSLSDISTLCKLMNIVIPIPAHHHLIGSGNLGLYPIVSSNKDYVHIRNVLRTMVVTILQKVEGNQLVLR
KPMTGQQYAIKNTGPFPWEKGDTLTLIPPLSTHSEEKLLKLGDWELTVPLVVPTAIAAEINIRLLCIGLIAVHREYNEMQ
TIIDELCSIQYRDVLIKLPDIVNDKQSMYSMKTACISLSMITAMAPDIVRTYIDRLTLEDHSMLLIKCQELLSKRTTLST
QRCGQLHATDIKDELKKIKSVLTMIDQINSLTNEKTYFVVCDVSADNRMATCIYKN</string>
                    <external_references type="UNIPROTKB">Q9QJ27</external_references>
                </sequence>
            </protein_or_peptide>
        </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>7.4</ph>
                        <details>PBS buffer, pH 7.4</details>
                    </buffer>
                    <grid>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">30</time>
                            <atmosphere>AIR</atmosphere>
                            <pressure units="kPa">101.325</pressure>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <instrument>HOMEMADE PLUNGER</instrument>
                        <details>The grids were manually plunged into the ethane.. </details>
                    </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>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">2.2</nominal_defocus_min>
                    <calibrated_defocus_min units="µm">2.2</calibrated_defocus_min>
                    <nominal_defocus_max units="µm">3.2</nominal_defocus_max>
                    <calibrated_defocus_max units="µm">3.2</calibrated_defocus_max>
                    <nominal_magnification>64000.0</nominal_magnification>
                    <calibrated_magnification>64000.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <number_real_images>4828</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">23.0</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>
                <particle_selection>
                    <number_selected>7430</number_selected>
                </particle_selection>
                <startup_model type_of_model="OTHER">
                    <details>a sphere density map</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>I</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">9.0</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <details>bin4 reconstrction</details>
                    <number_images_used>6443</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                </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="1048577">
        <file>emd_20557.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>640</col>
            <row>640</row>
            <sec>640</sec>
        </dimensions>
        <origin>
            <col>-319</col>
            <row>-319</row>
            <sec>-319</sec>
        </origin>
        <spacing>
            <x>640</x>
            <y>640</y>
            <z>640</z>
        </spacing>
        <cell>
            <a units="Å">1388.8</a>
            <b units="Å">1388.8</b>
            <c units="Å">1388.8</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>-0.07712099</minimum>
            <maximum>0.12517424</maximum>
            <average>0.0005919783</average>
            <std>0.012241783</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">2.17</x>
            <y units="Å">2.17</y>
            <z units="Å">2.17</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.036</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-20557::::</label>
        <annotation_details>HHV-6B capsid associated with pU11 tegument proteins</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>OTHER</refinement_protocol>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>
