<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_2_2/emdb.xsd" emdb_id="EMD-21958" version="3.0.2.2">
    <admin>
        <current_status>
            <date>2021-01-27</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-05-10</deposition>
            <header_release>2021-01-27</header_release>
            <map_release>2021-01-27</map_release>
            <update>2021-01-27</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R01 GM57479</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Natural Sciences and Engineering Research Council (NSERC, Canada)</funding_body>
                <code>RGPIN-2015-05776</code>
                <country>Canada</country>
            </grant_reference>
        </grant_support>
        <title>The negative stain EM structure of the human DNA LigI-PCNA-DNA complex</title>
        <authors_list>
            <author>Sverzhinsky A</author>
            <author>Pascal JM</author>
        </authors_list>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Matsumoto Y</author>
                    <author order="2">Brooks RC</author>
                    <author order="3">Sverzhinsky A</author>
                    <author order="4">Pascal JM</author>
                    <author order="5">Tomkinson AE</author>
                    <title>Dynamic DNA-bound PCNA complexes co-ordinate Okazaki fragment synthesis, processing and ligation.</title>
                    <journal_abbreviation>J.Mol.Biol.</journal_abbreviation>
                    <country>UK</country>
                    <volume>432</volume>
                    <first_page>166698</first_page>
                    <last_page>166698</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">33157085</external_references>
                    <external_references type="DOI">doi:10.1016/j.jmb.2020.10.032</external_references>
                    <external_references type="ISSN">1089-8638</external_references>
                    <external_references type="CSD">0070</external_references>
                    <external_references type="ASTM">JMOBAK</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-21958</emdb_id>
                <relationship>
                    <other>associated EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Full-length DNA LigI in complex with nicked duplex DNA and PCNA</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Full-length DNA LigI in complex with nicked duplex DNA and PCNA</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>
                <molecular_weight>
                    <experimental units="MDa">0.22</experimental>
                </molecular_weight>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>DNA ligase I</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                    <recombinant_strain>Rosetta2</recombinant_strain>
                </recombinant_expression>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Proliferating Cell Nuclear Antigen</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                    <recombinant_strain>BL21(DE3)</recombinant_strain>
                    <recombinant_cell>Rosetta2</recombinant_cell>
                </recombinant_expression>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="4">
                <name>Nicked DNA duplex</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="32630">synthetic</recombinant_organism>
                </recombinant_expression>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>DNA ligase I</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MGSSHHHHHHSSGLVPRGSHMtRSIMSFFHPKKEGKAKKPEKEASNSSRETEPPPKAALK
EWNGVVSESDSPVKRPGRKAARVLGSEGEEEDEALSPAKGQKPALDCSQVSPPRPATSPE
NNASLSDTSPMDSSPSGIPKRRTARKQLPKRTIQEVLEEQSEDEDREAKRKKEEEEEETP
KESLTEAEVATEKEGEDGDQPTTPPKPLKTSKAETPTESVSEPEVATKQELQEEEEQTKP
PRRAPKTLSSFFTPRKPAVKKEVKEEEPGAPGKEGAAEGPLDPSGYNPAKNNYHPVEDAC
WKPGQKVPYLAVARTFEKIEEVSARLRMVETLSNLLRSVVALSPPDLLPVLYLSLNHLGP
PQQGLELGVGDGVLLKAVAQATGRQLESVRAEAAEKGDVGLVAENSRSTQRLMLPPPPLT
ASGVFSKFRDIARLTGSASTAKKIDIIKGLFVACRHSEARFIARSLSGRLRLGLAEQSVL
AALSQAVSLTPPGQEFPPAMVDAGKGKTAEARKTWLEEQGMILKQTFCEVPDLDRIIPVL
LEHGLERLPEHCKLSPGIPLKPMLAHPTRGISEVLKRFEEAAFTCEYKYDGQRAQIHALE
GGEVKIFSRNQEDNTGKYPDIISRIPKIKLPSVTSFILDTEAVAWDREKKQIQPFQVLTT
RKRKEVDASEIQVQVCLYAFDLIYLNGESLVREPLSRRRQLLRENFVETEGEFVFATSLD
TKDIEQIAEFLEQSVKDSCEGLMVKTLDVDATYEIAKRSHNWLKLKKDYLDGVGDTLDLV
VIGAYLGRGKRAGRYGGFLLASYDEDSEELQAICKLGTGFSDEELEEHHQSLKALVLPSP
RPYVRIDGAVIPDHWLDPSAVWEVKCADLSLSPIYPAARGLVDSDKGISLRFPRFIRVRE
DKQPEQATTSAQVACLYRKQSQIQNQQGEDSGSDPEDTY</string>
                </sequence>
                <ec_number>6.5.1.1</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Proliferating Cell Nuclear Antigen</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MGHHHHHHHHHHSSGHIDDDDKHTSLEVVFQGPHMFEARLVQGSILKKVLEALKDLINEACWDISSSGVNLQSMDSSHVSLVQLTLRSEGFDTYRCDRNLAMGVNLTSMSKILKCAGNEDIITLRAEDNADTLALVFEAPNQEKVSDYEMKLMD
LDVEQLGIPEQEYSCVVKMPSGEFARICRDLSHIGDAVVISCAKDGVKFSASGELGNGNI
KLSQTSNVDKEEEAVTIEMNEPVQLTFALRYLNFFTKATPLSSTVTLSMSADVPLVVEYK
IADMGHLKYYLAPKIEDEEGS</string>
                </sequence>
            </protein_or_peptide>
            <dna macromolecule_id="3">
                <name>Nicked DNA duplex</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <sequence>
                    <string>GGTTCAGTCCGACGACGCATCAGCACAGAAGC</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
        </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">0.01</concentration>
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <material>Uranyl Formate</material>
                    </staining>
                    <grid>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                    </grid>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI 12</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>LAB6</electron_source>
                    <acceleration_voltage units="kV">120</acceleration_voltage>
                    <nominal_magnification>67000.0</nominal_magnification>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>FEI EAGLE (4k x 4k)</film_or_detector_model>
                            <average_exposure_time units="s">1.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">70.0</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>228451</number_selected>
                </particle_selection>
                <startup_model type_of_model="OTHER">
                    <details>SGD</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">19.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>2.1</version>
                        </software>
                    </software_list>
                    <number_images_used>49504</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="1049">
        <file>emd_21958.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>64</col>
            <row>64</row>
            <sec>64</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>64</x>
            <y>64</y>
            <z>64</z>
        </spacing>
        <cell>
            <a units="Å">209.92</a>
            <b units="Å">209.92</b>
            <c units="Å">209.92</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>-0.06672185</minimum>
            <maximum>0.12201776</maximum>
            <average>0.0012391106</average>
            <std>0.012408545</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">3.28</x>
            <y units="Å">3.28</y>
            <z units="Å">3.28</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.023</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-21958::::</label>
        <annotation_details>Refined 3D map of full-length human DNA LigI with human PCNA and 32bp non-ligatable nicked DNA.</annotation_details>
    </map>
</emd>
