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    <admin>
        <current_status>
            <date>2024-11-20</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-01-20</deposition>
            <header_release>2024-04-10</header_release>
            <map_release>2024-04-10</map_release>
            <update>2024-11-20</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Wellcome Trust</funding_body>
                <code>202231/Z/16/Z</code>
                <country>United Kingdom</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Medical Research Council (MRC, United Kingdom)</funding_body>
                <code>MC_UP_1201/31</code>
                <country>United Kingdom</country>
            </grant_reference>
        </grant_support>
        <title>In situ structure of the Nitrosopumilus maritimus S-layer - Two-fold symmetry (C2)</title>
        <authors_list>
            <author>von Kuegelgen A</author>
            <author>Bharat T</author>
        </authors_list>
        <keywords>Nmar_1547 S-layer, STRUCTURAL PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">von Kugelgen A</author>
                    <author order="2">Cassidy CK</author>
                    <author order="3">van Dorst S</author>
                    <author order="4">Pagani LL</author>
                    <author order="5">Batters C</author>
                    <author order="6">Ford Z</author>
                    <author order="7">Lowe J</author>
                    <author order="8">Alva V</author>
                    <author order="9">Stansfeld PJ</author>
                    <author order="10">Bharat TAM</author>
                    <title>Membraneless channels sieve cations in ammonia-oxidizing marine archaea.</title>
                    <journal_abbreviation>Nature</journal_abbreviation>
                    <country>UK</country>
                    <volume>630</volume>
                    <first_page>230</first_page>
                    <last_page>236</last_page>
                    <year>2024</year>
                    <external_references type="PUBMED">38811725</external_references>
                    <external_references type="DOI">doi:10.1038/s41586-024-07462-5</external_references>
                    <external_references type="ISSN">1476-4687</external_references>
                    <external_references type="CSD">0006</external_references>
                    <external_references type="ASTM">NATUAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>8c8n</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Nitrosopumilus maritimus S-layer</name>
        <supramolecule_list>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>Nitrosopumilus maritimus S-layer</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>Nitrosopumilus maritimus S-layer C2 symmetrised</details>
                <natural_source database="NCBI">
                    <organism ncbi="436308">Nitrosopumilus maritimus SCM1</organism>
                    <strain>SCM1</strain>
                    <cellular_location>extracellular</cellular_location>
                </natural_source>
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Cell surface protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="436308">Nitrosopumilus maritimus SCM1</organism>
                    <strain>SCM1</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.18315599999999999</theoretical>
                </molecular_weight>
                <number_of_copies>6</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNNEIGRKITSLTLMTIMVAGGLTFAIPGVMPEAMAANANLFVSAENSQFDNYMSGPQVIEVVVIDSDINDTDEAKGEPD
VTVNGKVLRMVQAVDGNWYGYFADRDQAQIADSTATTADSGLDFGVFCASSSGTAALGFSTTETDGIAIPITIANATATG
NGTQTGSSSGGAITTTCAANTLDASTANGTINVVREAKDPVAASGSVSVGQIGLKNGTANSGPNWPFIQLYELNPTGNVV
VQYNKGGGVQSTTLTFDTVDQFAELSLDRTVFPRVSQVHATITDLWLNIDPTDEDSWTFATNTKNTTSSFNVDTFYQVFD
ENGASGGSALTLRTTLSSLMCEDNCVLTLDVDAQSSGTPVVTIQDNGDSILTQLNASSNTNANNASAFGISTETAKLGTG
SIPVTITEQGPNSGVFGTYDESDKSVLKITDNAKRGTSASLDYNETPQTILVGFSFASIDIQPVTDEWTSGQEIPVVIVD
ADQNKNSRADEDLDLNNPDVTLIPALRTGDPFTIDEGGTPSLIFTNGTNGDDSIFDTGAINNTSAGQVGNFTLNINVTRF
SSATNITSTESIDTFSKRLISAQTANSSANFDVDFAIIDLGSATLETLKETVVDEDNTAVGFNFFNYDVRSLGADTVSIA
LLNTTGNILPWVNNDTRNVDKNNAILLVSNSTNSQAYVDLTNAVSDAVYGSTNTDSNVNIGFAMYFTGVGDLAAKEVIVM
DFFSFGFTDDGVQSSERFANQIIRIEAEETGDNTSTFEGSLEYVMVNQINIQDAGTFSGITPIADDPSFIVIEDLTDEDA
PRVNYNDLGADGVTTPVSDQEEAPSHSGVVSLNADSYKIADTVVITVEDLDLNVDSDLIDIFTVVSDNSKATDDAVGSAT
TQSLSFGELGRLLDVTFDDVIWSTPDGANNTATGNDSDTCSTELSNAGITDTGLGATGFTLVETGAATGVFVGDFQIPSF
WCRVSDTTTTPYTYAGDEETTTGLDIEVNYVDFRDASGEIVEVGDSAGVRANTGSVSLDRTVYPVPFGTIADSSKAANAA
PNGRSVFPIHATGITSTIDSTEELPTGDLTIHVRINDPDFDENPAGEDAMDQDNALKISVIRGSDSVVLGYAGASERTGK
IDVGGNNGTISNIRSFGEMDEIAPDAGIFELDVNIKFTDGPASAQCNSHDTLYTALDGTTGKADTNRFDDGAASGQEYCI
LQGDILQVEYTDPADASGDANTVTDSATFDLRNGVLQSDKSVYIIGSDMILTLIEPDFDLDNDSAETYDLDLIEWDSDAA
TTTMGNKGVTGAAAAFDPEPTDFRETGDSTGIFQIVIEIPESLSNDKLERGEEIILEYTDWGPSGSDYVGDEDEDVNLTI
YTSNFGATVELDQKVYSWTDKVYITIVAPDHNFDSDLVDEIGETDSDPIKVSTRGFDLDNYKLVETGTDTGIFTGEVILT
GFTAHDADGDGNTGDATGTTSGSGPTDGLLATDDDDGLTVSFEFSEDETIVGSALIRWNIGEVQWLEASYPASGTGVVRV
IDPDMNLDPEAVDNFEVDVWSDSDAGGIDLTVTETNEATGIFEGTVFFTTLDESSGHRLRVSEGDTVTAEYEDNTLPDPY
TTADELDITATSLIGTVVPPLERAPAANLRTVDAFGNSLDSVSVDQQVQISADLANGQDREQSFAYLVQIQDANGVTVSL
AWITGSLSSGQSFSPALSWIPTEAGTYTATAFVWESVDNPTALSPPVSTTVNVS</string>
                    <external_references type="UNIPROTKB">A9A4Y9</external_references>
                </sequence>
            </protein_or_peptide>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>subtomogramAveraging</method>
            <aggregation_state>cell</aggregation_state>
            <specimen_preparation_list>
                <subtomogram_averaging_preparation preparation_id="1">
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="mM">10.0</concentration>
                            <formula>C8H18N2O4S</formula>
                            <name>HEPES</name>
                        </component>
                        <component>
                            <concentration units="mM">444.9</concentration>
                            <formula>NaCl</formula>
                            <name>NaCl</name>
                        </component>
                        <component>
                            <concentration units="mM">20.286</concentration>
                            <formula>MgSO4</formula>
                            <name>MgSO4</name>
                        </component>
                        <component>
                            <concentration units="mM">24.59</concentration>
                            <formula>MgCl2</formula>
                            <name>MgCl2</name>
                        </component>
                        <component>
                            <concentration units="mM">10.2</concentration>
                            <formula>CaCl2</formula>
                            <name>CaCl2</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <formula>NH4Cl</formula>
                            <name>NH4Cl</name>
                        </component>
                        <component>
                            <concentration units="microM">14.696</concentration>
                            <formula>KH2PO4</formula>
                            <name>KH2PO4</name>
                        </component>
                        <component>
                            <concentration units="microM">7.5</concentration>
                            <formula>FeNaC10H12N2O8</formula>
                            <name>FeNaEDTA</name>
                        </component>
                        <component>
                            <concentration units="microM">0.5</concentration>
                            <formula>H3BO3</formula>
                            <name>H3BO3</name>
                        </component>
                        <component>
                            <concentration units="microM">0.5</concentration>
                            <formula>MnCl2</formula>
                            <name>MnCl2</name>
                        </component>
                        <component>
                            <concentration units="microM">0.8</concentration>
                            <formula>CoCl2</formula>
                            <name>CoCl2</name>
                        </component>
                        <component>
                            <concentration units="microM">0.1</concentration>
                            <formula>NiCl2</formula>
                            <name>NiCl2</name>
                        </component>
                        <component>
                            <concentration units="microM">0.01</concentration>
                            <formula>CuCl2</formula>
                            <name>CuCl2</name>
                        </component>
                        <component>
                            <concentration units="microM">0.5</concentration>
                            <formula>ZnSO4</formula>
                            <name>ZnSO4</name>
                        </component>
                        <component>
                            <concentration units="microM">0.15</concentration>
                            <formula>Na2MoO4</formula>
                            <name>Na2MoO4</name>
                        </component>
                        <details>Modified Syntheic Crenarchaeota medium</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>COPPER/RHODIUM</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY ARRAY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">20</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                        <details>15 mA</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>NITROGEN</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">283.15</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>absorption for 60 sec and blotted for 5 sec with blot force -10. </details>
                    </vitrification>
                    <details>Nitrosopumilus maritimus cells</details>
                </subtomogram_averaging_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <subtomogram_averaging_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>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">2.0</nominal_defocus_min>
                    <calibrated_defocus_min units="µm">2.0</calibrated_defocus_min>
                    <nominal_defocus_max units="µm">5.0</nominal_defocus_max>
                    <calibrated_defocus_max units="µm">5.0</calibrated_defocus_max>
                    <nominal_magnification>105000.0</nominal_magnification>
                    <calibrated_magnification>105000.0</calibrated_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <temperature>
                        <temperature_min units="K">70.0</temperature_min>
                        <temperature_max units="K">70.0</temperature_max>
                    </temperature>
                    <alignment_procedure>
                        <coma_free/>
                    </alignment_procedure>
                    <specialist_optics>
                        <sph_aberration_corrector>not used</sph_aberration_corrector>
                        <chr_aberration_corrector>not used</chr_aberration_corrector>
                        <energy_filter>
                            <name>GIF Quantum LS</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <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>
                            <digitization_details>
                                <frames_per_image>1-10</frames_per_image>
                            </digitization_details>
                            <number_real_images>1</number_real_images>
                            <average_exposure_time units="s">0.9</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">2.96</average_electron_dose_per_image>
                            <details>Dose-symmetric tilt scheme (Hagen et al)</details>
                        </image_recording>
                    </image_recording_list>
                </subtomogram_averaging_microscopy>
            </microscopy_list>
            <subtomogram_averaging_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C2</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">3.4</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>4.0.0</version>
                        </software>
                    </software_list>
                    <number_subtomograms_used>108621</number_subtomograms_used>
                </final_reconstruction>
                <extraction>
                    <number_tomograms>153</number_tomograms>
                    <number_images_used>138532</number_images_used>
                    <reference_model>None</reference_model>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>4.0.0</version>
                        </software>
                    </software_list>
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                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>4.0.0</version>
                        </software>
                    </software_list>
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                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>4.0.0</version>
                        </software>
                    </software_list>
                    <details>RELION 4.0.0</details>
                </final_angle_assignment>
            </subtomogram_averaging_processing>
        </structure_determination>
    </structure_determination_list>
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