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    <admin>
        <current_status>
            <date>2019-03-06</date>
            <code>REL</code>
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            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
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        <key_dates>
            <deposition>2018-12-05</deposition>
            <header_release>2019-02-20</header_release>
            <map_release>2019-03-06</map_release>
            <update>2019-03-06</update>
        </key_dates>
        <title>Structure of bacteriophage T7 lagging-strand DNA polymerase (D5A/E7A)/Trx interacting with primase domains of two gp4 subunits (A and B), with gp4 helicase bound to a DNA fork and dTTP (LagL4)</title>
        <authors_list>
            <author>Gao Y</author>
            <author>Fox T</author>
            <author>Val N</author>
            <author>Yang W</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Gao Y</author>
                    <author order="2">Cui Y</author>
                    <author order="3">Fox T</author>
                    <author order="4">Lin S</author>
                    <author order="5">Wang H</author>
                    <author order="6">de Val N</author>
                    <author order="7">Zhou ZH</author>
                    <author order="8">Yang W</author>
                    <title>Structures and operating principles of the replisome.</title>
                    <journal_abbreviation>Science</journal_abbreviation>
                    <country>US</country>
                    <volume>363</volume>
                    <year>2019</year>
                    <external_references type="PUBMED">30679383</external_references>
                    <external_references type="DOI">doi:10.1126/science.aav7003</external_references>
                    <external_references type="ISSN">1095-9203</external_references>
                    <external_references type="CSD">0038</external_references>
                    <external_references type="ASTM">SCIEAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
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    <sample>
        <name>T7 DNA polymerase/Trx interacting with two primase domains (A and B) of T7 helicase (gp4) in complex with a fork DNA substrate and dTTP (from gp4-gp5 lagging-strand complex LagL4)</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>T7 DNA polymerase/Trx interacting with two primase domains (A and B) of T7 helicase (gp4) in complex with a fork DNA substrate and dTTP (from gp4-gp5 lagging-strand complex LagL4)</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>
                <natural_source database="NCBI">
                    <organism ncbi="10760">Enterobacteria phage T7</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>gene product 4 helicase-primase</name>
                <natural_source database="NCBI">
                    <organism ncbi="10760">Enterobacteria phage T7</organism>
                </natural_source>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDNSHDSDSVFLYHIPCDNCGSSDGNSLFSDGHTFCYVCEKWTAGNEDTKERASKRKPSG
GKPMTYNVWNFGESNGRYSALTARGISKETCQKAGYWIAKVDGVMYQVADYRDQNGNIVS
QKVRDKDKNFKTTGSHKSDALFGKHLWNGGKKIVVTEGEIDMLTVMELQDCKYPVVSLGH
GASAAKKTCAANYEYFDQFEQIILMFDMDEAGRKAVEEAAQVLPAGKVRVAVLPCKDANE
CHLNGHDREIMEQVWNAGPWIPDGVVSALSLRERIREHLSSEESVGLLFSGCTGINDKTL
GARGGEVIMVTSGSGMGKSTFVRQQALQWGTAMGKKVGLAMLQESVEETAEDLIGLHNRV
RLRQSDSLKREIIENGKFDQWFDELFGNDTFHLYDSFAEAETDRLLAKLAYMRSGLGCDV
IILDHISIVVSASGESDERKMIDNLMTKLKGFAKSTGVVLVVICHLKNPDKGKAHEEGRP
VSITDLRGSGALRQLSDTIIALERNQQGDMPNLVLVRILKCRFTGDTGIAGYMEYNKETG
WLEPSSYSGEEESHSESTDWSNDTDF</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>gene product 5 DNA polymerase</name>
                <natural_source database="NCBI">
                    <organism ncbi="10760">Enterobacteria phage T7</organism>
                </natural_source>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MIVSAIAANALLESVTKFHCGVIYDYSTAEYVSYRPSDFGAYLDALEAEVARGGLIVFHN
GHKYDVPALTKLAKLQLNREFHLPRENCIDTLVLSRLIHSNLKDTDMGLLRSGKLPGKRF
GSHALEAWGYRLGEMKGEYKDDFKRMLEEQGEEYVDGMEWWNFNEEMMDYNVQDVVVTKA
LLEKLLSDKHYFPPEIDFTDVGYTTFWSESLEAVDIEHRAAWLLAKQERNGFPFDTKAIE
ELYVELAARRSELLRKLTETFGSWYQPKGGTEMFCHPRTGKPLPKYPRIKTPKVGGIFKK
PKNKAQREGREPCELDTREYVAGAPYTPVEHVVFNPSSRDHIQKKLQEAGWVPTKYTDKG
APVVDDEVLEGVRVDDPEKQAAIDLIKEYLMIQKRIGQSAEGDKAWLRYVAEDGKIHGSV
NPNGAVTGRATHAFPNLAQIPGVRSPYGEQCRAAFGAEHHLDGITGKPWVQAGIDASGLE
LRCLAHFMARFDNGEYAHEILNGDIHTKNQIAAELPTRDNAKTFIYGFLYGAGDEKIGQI
VGAGKERGKELKKKFLENTPAIAALRESIQQTLVESSQWVAGEQQVKWKRRWIKGLDGRK
VHVRSPHAALNTLLQSAGALICKLWIIKTEEMLVEKGLKHGWDGDFAYMAWVHDEIQVGC
RTEEIAQVVIETAQEAMRWVGDHWNFRCLLDTEGKMGPNWAICH</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Thioredoxin 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="562">Escherichia coli</organism>
                </natural_source>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSDKIIHLTDDSFDTDVLKADGAILVDFWAEWCGPCKMIAPILDEIADEYQGKLTVAKLN
IDQNPGTAPKYGIRGIPTLLLFKNGEVAATKVGALSKGQLKEFLDANLA</string>
                </sequence>
            </protein_or_peptide>
            <dna macromolecule_id="4">
                <name>Primer</name>
                <natural_source database="NCBI">
                    <organism ncbi="10760">Enterobacteria phage T7</organism>
                </natural_source>
                <sequence>
                    <string>(DG)(DG)(DT)(DA)(DC)(DA)(DA)(DC)(DT)(DT)(DG)(DA)(DC)(DG)(DA)(DC)(DA)(DT)(DA)(DG)(DC)(DG)(DT)(DG)(DOA)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <dna macromolecule_id="5">
                <name>Template</name>
                <natural_source database="NCBI">
                    <organism ncbi="10760">Enterobacteria phage T7</organism>
                </natural_source>
                <sequence>
                    <string>(DT)(DT)(DT)(DG)(DG)(DT)(DC)(DA)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DA)(DC)(DG)(DG)(DA)(DG)(DT)(DC)(DG)(DT)(DT)(DT)(DC)(DG)(DA)(DC)(DT)(DC)(DC)(DG)(DT)(DT)(DA)(DT)(DC)(DA)(DC)(DG)(DC)(DT)(DA)(DT)(DG)(DT)(DC)(DG)(DT)(DC)(DA)(DA)(DG)(DT)(DT)(DG)(DT)(DA)(DC)(DC)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
        </macromolecule_list>
    </sample>
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            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                <single_particle_preparation preparation_id="1">
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <name>Tris</name>
                        </component>
                        <component>
                            <concentration units="mM">150.0</concentration>
                            <formula>KCl</formula>
                            <name>potassium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">3.0</concentration>
                            <name>DTT</name>
                        </component>
                    </buffer>
                    <grid>
                        <details>unspecified</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">295</chamber_temperature>
                        <instrument>FEI VITROBOT MARK I</instrument>
                        <details />
                    </vitrification>
                </single_particle_preparation>
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                <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 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <average_electron_dose_per_image units="e/Å^2">40.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
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                        <pdb_id>1T8E</pdb_id>
                    </pdb_model>
                    <details>1T8E, 1NUI</details>
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                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="Å">8.3</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                    <number_images_used>14119</number_images_used>
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                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
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                    <type>MAXIMUM LIKELIHOOD</type>
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                        <software>
                            <name>RELION</name>
                        </software>
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            <c units="Å">412.80002</c>
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            <beta units="deg">90.0</beta>
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        <annotation_details>T7 DNA polymerase/Trx interacting with two primase domains (A and B) of T7 helicase (gp4) in complex with a fork DNA substrate and dTTP (from gp4-gp5 lagging-strand complex LagL4)</annotation_details>
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