<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_10_1/emdb.xsd" version="3.0.10.1" emdb_id="EMD-4629">
    <admin>
        <current_status>
            <date>2025-04-09</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <revision_history>
            <revision version="1.0" date="2021-01-20">
                <change_list>
                    <additional_map>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </additional_map>
                    <fsc>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </fsc>
                    <half_map part="1">
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </half_map>
                    <half_map part="2">
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </half_map>
                    <image>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </image>
                    <mask>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </mask>
                    <primary_map>
                        <revision_type>INITIAL_RELEASE</revision_type>
                        <provider>REPOSITORY</provider>
                    </primary_map>
                </change_list>
            </revision>
            <revision version="1.1" date="2025-04-09">
                <change_list>
                    <metadata>
                        <revision_group>REFINEMENT_DESCRIPTION</revision_group>
                        <categories>
                            <category>database_2</category>
                            <category>em_3d_fitting_list</category>
                            <category>em_admin</category>
                            <category>pdbx_initial_refinement_model</category>
                        </categories>
                        <items>
                            <item>_database_2.pdbx_DOI</item>
                            <item>_database_2.pdbx_database_accession</item>
                            <item>_em_3d_fitting_list.accession_code</item>
                            <item>_em_3d_fitting_list.initial_refinement_model_id</item>
                            <item>_em_3d_fitting_list.source_name</item>
                            <item>_em_3d_fitting_list.type</item>
                            <item>_em_admin.last_update</item>
                        </items>
                    </metadata>
                </change_list>
            </revision>
            <revision version="1.2" date="2025-04-09">
                <change_list>
                    <model>
                        <revision_group>STRUCTURE_SUMMARY</revision_group>
                        <categories>
                            <category>chem_comp_atom</category>
                            <category>chem_comp_bond</category>
                            <category>database_2</category>
                            <category>em_3d_fitting_list</category>
                            <category>em_admin</category>
                            <category>pdbx_entry_details</category>
                            <category>pdbx_initial_refinement_model</category>
                            <category>pdbx_modification_feature</category>
                        </categories>
                        <items>
                            <item>_database_2.pdbx_DOI</item>
                            <item>_database_2.pdbx_database_accession</item>
                            <item>_em_3d_fitting_list.accession_code</item>
                            <item>_em_3d_fitting_list.initial_refinement_model_id</item>
                            <item>_em_3d_fitting_list.source_name</item>
                            <item>_em_3d_fitting_list.type</item>
                            <item>_em_admin.last_update</item>
                            <item>_pdbx_entry_details.has_protein_modification</item>
                        </items>
                    </model>
                </change_list>
            </revision>
        </revision_history>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-02-22</deposition>
            <header_release>2021-01-20</header_release>
            <map_release>2021-01-20</map_release>
            <update>2025-04-09</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Research Council of Norway</funding_body>
                <country>Norway</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Research Council of Norway</funding_body>
                <code>275207</code>
                <country>Norway</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)</funding_body>
                <code>R01AI78000</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Helicobacter pylori urease with BME bound in the active site</title>
        <authors_list>
            <author>Luecke H</author>
            <author>Cunha E</author>
        </authors_list>
        <keywords>dodecamer, bi nickel center, enzyme, cytoplasm, HYDROLASE</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0003-4491-9054" order="1">Cunha ES</author>
                    <author ORCID="0000-0002-4492-0883" order="2">Chen X</author>
                    <author ORCID="0000-0002-9027-8625" order="3">Sanz-Gaitero M</author>
                    <author order="4">Mills DJ</author>
                    <author ORCID="0000-0002-4938-0775" order="5">Luecke H</author>
                    <title>Cryo-EM structure of Helicobacter pylori urease with an inhibitor in the active site at 2.0 angstrom resolution.</title>
                    <journal_abbreviation>Nat Commun</journal_abbreviation>
                    <country>UK</country>
                    <volume>12</volume>
                    <first_page>230</first_page>
                    <last_page>230</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">33431861</external_references>
                    <external_references type="DOI">doi:10.1038/s41467-020-20485-6</external_references>
                    <external_references type="ISSN">2041-1723</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6qsu</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>1.1 MDa Helicobacter pylori Urease</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>1.1 MDa Helicobacter pylori Urease</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="210">Helicobacter pylori</organism>
                    <strain>UMAB41</strain>
                    <cellular_location>Cytoplasm</cellular_location>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">1.1</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Urease subunit alpha</name>
                <natural_source database="NCBI">
                    <organism ncbi="210">Helicobacter pylori</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.026645703</theoretical>
                </molecular_weight>
                <number_of_copies>12</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKLTPKELDKLMLHYAGELARKRKEKGIKLNYVEAVALISAHIMEEARAGKKTAAELMQEGRTLLKPDDVMDGVASMIHE
VGIEAMFPDGTKLVTVHTPIEANGKLVPGELFLKNEDITINEGKKAVSVKVKNVGDRPVQIGSHFHFFEVNRCLDFDREK
TFGKRLDIASGTAVRFEPGEEKSVELIDIGGNRRIFGFNALVDRQADNESKKIALHRAKERGFHGTKSDDNYVKTIKE</string>
                    <external_references type="UNIPROTKB">A0A293SGE9</external_references>
                </sequence>
                <ec_number>3.5.1.5</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Urease subunit beta</name>
                <natural_source database="NCBI">
                    <organism ncbi="210">Helicobacter pylori</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.061832531</theoretical>
                </molecular_weight>
                <number_of_copies>12</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKKISRKEYVSMYGPTTGDKVRLGDTDLIAEVEHDYTIYGEELKFGGGKTLREGMSQSNNPSKEELDLIITNALIVDYTG
IYKADIGIKDGKIAGIGKGGNKDMQDGVKNNLSVGPATEALAGEGLIVTAGGIDTHIHFISPQQIPTAFASGVTTMIGGG
TGPADGTNATTITPGRRNLKWMLRAAEEYSMNLGFLAKGNTSNDASLADQIEAGAIGF(KCX)IHEDWGTTPSAINHALD
VADKYDVQVAIHTDTLNEAGCVEDTMAAIAGRTMHTFHTEGAGGGHAPDIIKVAGEHNILPASTNPTIPFTVNTEAEHMD
MLMVCHHLDKSIKEDVQFADSRIRPQTIAAEDTLHDMGIFSITSSDSQAMGRVGEVITRTWQTADKNKKEFGRLKEEKGD
NDNFRIKRYLSKYTINPAIAHGISEYVGSVEVGKVADLVLWSPAFFGVKPNMIIKGGFIALSQMGDANASIPTPQPVYYR
EMFAHHGKAKYDANITFVSQAAYDKGIKEELGLERQVLPVKNCRNITKKDMQFNDTTAHIEVNPETYHVFVDGKEVTSKP
ANKVSLAQLFSIF</string>
                    <external_references type="UNIPROTKB">A0A086RWB6</external_references>
                </sequence>
                <ec_number>3.5.1.5</ec_number>
            </protein_or_peptide>
            <ligand macromolecule_id="3">
                <name>NICKEL (II) ION</name>
                <molecular_weight>
                    <theoretical units="MDa">5.8692999999999995e-05</theoretical>
                </molecular_weight>
                <number_of_copies>24</number_of_copies>
                <formula>NI</formula>
            </ligand>
            <ligand macromolecule_id="4">
                <name>BETA-MERCAPTOETHANOL</name>
                <molecular_weight>
                    <theoretical units="MDa">7.813299999999999e-05</theoretical>
                </molecular_weight>
                <number_of_copies>12</number_of_copies>
                <formula>BME</formula>
            </ligand>
            <ligand macromolecule_id="5">
                <name>water</name>
                <molecular_weight>
                    <theoretical units="MDa">1.8015e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1178</number_of_copies>
                <formula>HOH</formula>
            </ligand>
        </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">2</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <component>
                            <concentration units="mM">20.0</concentration>
                            <name>Hepes</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <name>EDTA</name>
                        </component>
                        <component>
                            <concentration units="mM">1.0</concentration>
                            <name>BME</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>COPPER</material>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">90</time>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">70</chamber_humidity>
                        <chamber_temperature units="K">283</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                    </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>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>956</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">50.0</average_electron_dose_per_image>
                            <details>Used 718 movies</details>
                        </image_recording>
                        <image_recording image_recording_id="2">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">40.0</average_electron_dose_per_image>
                        </image_recording>
                        <image_recording image_recording_id="3">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">40.0</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>203000</number_selected>
                </particle_selection>
                <startup_model type_of_model="PDB ENTRY">
                    <pdb_model>
                        <pdb_id>1E9Z</pdb_id>
                    </pdb_model>
                    <details>3.0 A crystal structure of apo form</details>
                </startup_model>
                <final_reconstruction>
                    <number_classes_used>1</number_classes_used>
                    <applied_symmetry>
                        <point_group>T</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">2.4</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0 beta</version>
                        </software>
                    </software_list>
                    <number_images_used>175895</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>NOT APPLICABLE</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0 beta</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>NOT APPLICABLE</type>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0 beta</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>6</number_classes>
                    <average_number_members_per_class>28000.0</average_number_members_per_class>
                    <software_list>
                        <software>
                            <name>RELION</name>
                            <version>3.0 beta</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="108001">
        <file>emd_4629.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>300</col>
            <row>300</row>
            <sec>300</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>300</x>
            <y>300</y>
            <z>300</z>
        </spacing>
        <cell>
            <a units="Å">323.1</a>
            <b units="Å">323.1</b>
            <c units="Å">323.1</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>-0.15039964</minimum>
            <maximum>0.26389554</maximum>
            <average>0.00031169914</average>
            <std>0.010078388</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.077</x>
            <y units="Å">1.077</y>
            <z units="Å">1.077</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.05</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-4629::::</label>
        <annotation_details>unmasked map</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>1E9Z</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <initial_model>
                    <access_code>1E9Z</access_code>
                    <chain>
                        <chain_id>B</chain_id>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_4629_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <additional_map_list>
            <additional_map format="CCP4" size_kbytes="14701">
                <file>emd_4629_additional_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>153</col>
                    <row>157</row>
                    <sec>153</sec>
                </dimensions>
                <origin>
                    <col>77</col>
                    <row>73</row>
                    <sec>74</sec>
                </origin>
                <spacing>
                    <x>153</x>
                    <y>157</y>
                    <z>153</z>
                </spacing>
                <cell>
                    <a units="Å">164.781</a>
                    <b units="Å">169.089</b>
                    <c units="Å">164.781</c>
                    <alpha units="deg">90.0</alpha>
                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
                </cell>
                <axis_order>
                    <fast>Z</fast>
                    <medium>Y</medium>
                    <slow>X</slow>
                </axis_order>
                <statistics>
                    <minimum>-1.7167628</minimum>
                    <maximum>2.4176128</maximum>
                    <average>0.000000000001052</average>
                    <std>0.21985471</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.077</x>
                    <y units="Å">1.077</y>
                    <z units="Å">1.077</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-4629::::</label>
                <annotation_details>density modified map</annotation_details>
            </additional_map>
        </additional_map_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="108001">
                <file>emd_4629_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>300</col>
                    <row>300</row>
                    <sec>300</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>300</x>
                    <y>300</y>
                    <z>300</z>
                </spacing>
                <cell>
                    <a units="Å">323.1</a>
                    <b units="Å">323.1</b>
                    <c units="Å">323.1</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>-0.02332859</minimum>
                    <maximum>0.06580606</maximum>
                    <average>-0.00003422834</average>
                    <std>0.0034706625</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.077</x>
                    <y units="Å">1.077</y>
                    <z units="Å">1.077</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-4629::::</label>
                <annotation_details>half map</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="108001">
                <file>emd_4629_half_map_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>300</col>
                    <row>300</row>
                    <sec>300</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>300</x>
                    <y>300</y>
                    <z>300</z>
                </spacing>
                <cell>
                    <a units="Å">323.1</a>
                    <b units="Å">323.1</b>
                    <c units="Å">323.1</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>-0.024895346</minimum>
                    <maximum>0.06387592</maximum>
                    <average>-0.00003424954</average>
                    <std>0.0034768682</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.077</x>
                    <y units="Å">1.077</y>
                    <z units="Å">1.077</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-4629::::</label>
                <annotation_details>half map</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
