<?xml version="1.0" encoding="UTF-8"?>
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    <admin>
        <current_status>
            <date>2025-12-10</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <revision_history>
            <revision version="1.0" date="2025-12-10">
                <change_list>
                    <model>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </model>
                </change_list>
            </revision>
        </revision_history>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2025-04-09</deposition>
            <header_release>2025-12-10</header_release>
            <map_release>2025-12-10</map_release>
            <update>2025-12-10</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>European Research Council (ERC)</funding_body>
                <code>740329</code>
                <country>European Union</country>
            </grant_reference>
            <grant_reference>
                <funding_body>European Research Council (ERC)</funding_body>
                <code>101054447</code>
                <country>European Union</country>
            </grant_reference>
            <grant_reference>
                <funding_body>German Research Foundation (DFG)</funding_body>
                <code>SFB1035</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Novo Nordisk Foundation</funding_body>
                <code>31199</code>
                <country>Denmark</country>
            </grant_reference>
            <grant_reference>
                <funding_body>German Federal Ministry for Education and Research</funding_body>
                <code>DZD</code>
                <country>Germany</country>
            </grant_reference>
        </grant_support>
        <title>human PAN2-PAN3 deadenylase complex in the apo state</title>
        <authors_list>
            <author>Albrecht JC</author>
            <author>Reitinger T</author>
            <author>Basquin J</author>
            <author>Schuessler S</author>
            <author>Schaefer IB</author>
            <author>Conti E</author>
        </authors_list>
        <keywords>complex, mammalian, deadenylase, mRNA poly(A) tail, RNA processing, mRNA, RNA BINDING PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Albrecht JC</author>
                    <author order="2">Reitinger T</author>
                    <author order="3">Basquin J</author>
                    <author order="4">Schussler S</author>
                    <author order="5">Riggi M</author>
                    <author order="6">Schafer IB</author>
                    <author order="7">Conti E</author>
                    <title>Mechanisms governing poly(A)-tail-length specificity of the human PAN2-PAN3 deadenylase complex.</title>
                    <journal_abbreviation>Cell Rep</journal_abbreviation>
                    <country>US</country>
                    <volume>44</volume>
                    <first_page>116609</first_page>
                    <last_page>116609</last_page>
                    <year>2025</year>
                    <external_references type="PUBMED">41275497</external_references>
                    <external_references type="DOI">doi:10.1016/j.celrep.2025.116609</external_references>
                    <external_references type="ISSN">2211-1247</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>9qtu</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
        <other_db_list>
            <db_reference>
                <db_name>EMDB</db_name>
                <accession_id>EMD-53362</accession_id>
                <content_type>associated EM volume</content_type>
                <details>human PAN2-PAN3 deadenylase complex in the apo state</details>
            </db_reference>
        </other_db_list>
    </crossreferences>
    <sample>
        <name>heterotrimeric PAN2-PAN3 mRNA deadenylase complex composed of the regulatory PAN3 homodimer bound to the catalytic PAN2</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>heterotrimeric PAN2-PAN3 mRNA deadenylase complex composed of the regulatory PAN3 homodimer bound to the catalytic PAN2</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Isoform 3 of PAN2-PAN3 deadenylation complex subunit PAN3</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.092526539</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNSGGGLPPPSAAASPSSSSLAAAVAVVAPPGVGGVPGGAAVGVKLKYCRYYAKDKTCFYGEECQFLHEDPAAGAAPGLG
LHSNSVPLALAGAPVAGFPPGAVAGGGAGPPPGPKKPDLGDPGTGAAAGGGGSSGGLDGPRLAIPGMDGGALTDTSLTDS
YFSTSFIGVNGFGSPVETKYPLMQRMTNSSSSPSLLNDSAKPYSAHDPLTSPASSLFNDFGALNISQRRKTPNPTASEFI
PKGGSTSRLSNVSQSNMSAFSQVFSHPSMGSPATAGLAPGMSLSAGSSPLHSPKITPHTSPAPRRRSHTPNPASYMVPSS
ASTSVNNPVSQTPSSGQVIQKETVGGTTYFYTDTTPAPLTGMVFPNYHIYPPTAPHVAYMQPKANAPSFFMADELRQELI
NRHLITMAQIDQADMPAVPTEVDSYHSLFPLEPLPPPNRIQKSSNFGYITSCYKAVNSKDDLPYCLRRIHGFRLVNTKCM
VLVDMWKKIQHSNIVTLREVFTTKAFAEPSLVFAYDFHAGGETMMSRHFNDPNADAYFTKRKWGQHEGPLPRQHAGLLPE
SLIWAYIVQLSSALRTIHTAGLACRVMDPTKILITGKTRLRVNCVGVFDVLTFDNSQNNNPLALMAQYQQADLISLGKVV
LALACNSLAGIQRENLQKAMELVTINYSSDLKNLILYLLTDQNRMRSVNDIMPMIGARFYTQLDAAQMRNDVIEEDLAKE
VQNGRLFRLLAKLGTINERPEFQKDPTWSETGDRYLLKLFRDHLFHQVTEAGAPWIDLSHIISCLNKLDAGVPEKISLIS
RDEKSVLVVTYSDLKRCFENTFQELIAAANGQLSAWSHPQFEKGGGSGGGSGGSAWSHPQFEK</string>
                    <external_references type="UNIPROTKB">Q58A45</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>PAN2-PAN3 deadenylation complex catalytic subunit PAN2</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.135523094</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNFEGLDPGLAEYAPAMHSALDPVLDAHLNPSLLQNVELDPEGVALEALPVQESVHIMEGVYSELHSVVAEVGVPVSVSH
FDLHEEMLWVGSHGGHATSFFGPALERYSSFQVNGSDDIRQIQSLENGILFLTKNNLKYMARGGLIIFDYLLDENEDMHS
LLLTDSSTLLVGGLQNHILEIDLNTVQETQKYAVETPGVTIMRQTNRFFFCGHTSGKVSLRDLRTFKVEHEFDAFSGSLS
DFDVHGNLLAACGFSSRLTGLACDRFLKVYDLRMMRAITPLQVHVDPAFLRFIPTYTSRLAIISQSGQCQFCEPTGLANP
ADIFHVNPVGPLLMTFDVSASKQALAFGDSEGCVHLWTDSPEPSFNPYSRETEFALPCLVDSLPPLDWSQDLLPLSLIPV
PLTTDTLLSDWPAANSAPAPRRAPPVDAEILRTMKKVGFIGYAPNPRTRLRNQIPYRLKESDSEFDSFSQVTESPVGREE
EPHLHMVSKKYRKVTIKYSKLGLEDFDFKHYNKTLFAGLEPHIPNAYCNCMIQVLYFLEPVRCLIQNHLCQKEFCLACEL
GFLFHMLDLSRGDPCQGNNFLRAFRTIPEASALGLILADSDEASGKGNLARLIQRWNRFILTQLHQDMQELEIPQAYRGA
GGSSFCSSGDSVIGQLFSCEMENCSLCRCGSETVRASSTLLFTLSYPDGSKSDKTGKNYDFAQVLKRSICLDQNTQAWCD
TCEKYQPTIQTRNIRHLPDILVINCEVNSSKEADFWRMQAEVAFKMAVKKHGGEISKNKEFALADWKELGSPEGVLVCPS
IEELKNVWLPFSIRMKMTKNKGLDVCNWTDGDEMQWGPARAEEEHGVYVYDLMATVVHILDSRTGGSLVAHIKVGETYHQ
RKEGVTHQQWYLFNDFLIEPIDKHEAVQFDMNWKVPAILYYVKRNLNSRYNLNIKNPIEASVLLAEASLARKQRKTHTTF
IPLMLNEMPQIGDLVGLDAEFVTLNEEEAELRSDGTKSTIKPSQMSVARITCVRGQGPNEGIPFIDDYISTQEQVVDYLT
QYSGIKPGDLDAKISSKHLTTLKSTYLKLRFLIDIGVKFVGHGLQKDFRVINLMVPKDQVLDTVYLFHMPRKRMISLRFL
AWYFLDLKIQGETHDSIEDARTALQLYRKYLELSKNGTEPESFHKVLKGLYEKGRKMDWKVPEPEGQTSPKNAAVFSSVL
AL</string>
                    <external_references type="UNIPROTKB">Q504Q3</external_references>
                </sequence>
                <ec_number>3.1.13.4</ec_number>
            </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">
                    <concentration units="mg/mL">0.12</concentration>
                    <buffer>
                        <ph>7.5</ph>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/1</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">40</time>
                            <atmosphere>AIR</atmosphere>
                            <pressure units="kPa">0.022</pressure>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE-PROPANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>TFS 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>
                    <c2_aperture_diameter units="µm">100.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.62</nominal_cs>
                    <nominal_defocus_min units="µm">0.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.8000000000000003</nominal_defocus_max>
                    <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 K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <average_exposure_time units="s">3.5</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>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>4</version>
                        </software>
                    </software_list>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
                </ctf_correction>
                <startup_model type_of_model="INSILICO MODEL"/>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <resolution units="Å" res_type="BY AUTHOR">4.6</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>4</version>
                        </software>
                    </software_list>
                    <number_images_used>34171</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>4</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>4</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>3</number_classes>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>4</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
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        <file>emd_53362.map.gz</file>
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            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
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        <spacing>
            <x>440</x>
            <y>440</y>
            <z>440</z>
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        <cell>
            <a units="Å">374.52798</a>
            <b units="Å">374.52798</b>
            <c units="Å">374.52798</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>
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        <statistics>
            <minimum>-0.69796604</minimum>
            <maximum>1.5456771</maximum>
            <average>-0.0005740827</average>
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        </statistics>
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        <contour_list>
            <contour primary="true">
                <level>0.2</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-53362::::</label>
        <annotation_details>human apo PAN2-PAN3 sharpened map</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <chain>
                        <source_name>AlphaFold</source_name>
                        <initial_model_type>in silico model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_53362_msk_2.map</file>
            </segmentation>
            <segmentation>
                <file>emd_53362_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <half_map_list>
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                <file>emd_53362_half_map_2.map.gz</file>
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                </symmetry>
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                <dimensions>
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                    <row>440</row>
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                    <y>440</y>
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                    <b units="Å">374.52798</b>
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                    <beta units="deg">90.0</beta>
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                    <medium>Y</medium>
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                <label>::::EMDATABANK.org::::EMD-53362::::</label>
                <annotation_details>human apo PAN2-PAN3 halfmap A</annotation_details>
            </half_map>
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                    <space_group>1</space_group>
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                    <row>0</row>
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                    <y>440</y>
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                    <b units="Å">374.52798</b>
                    <c units="Å">374.52798</c>
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                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
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                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.6061208</minimum>
                    <maximum>1.3245039</maximum>
                    <average>0.00053651416</average>
                    <std>0.0440731</std>
                </statistics>
                <pixel_spacing>
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                    <y units="Å">0.8512</y>
                    <z units="Å">0.8512</z>
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                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
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                <label>::::EMDATABANK.org::::EMD-53362::::</label>
                <annotation_details>human apo PAN2-PAN3 halfmap B</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
