<?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_8_0/emdb.xsd" version="3.0.8.0" emdb_id="EMD-17349">
    <admin>
        <current_status>
            <date>2023-10-18</date>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2023-05-11</deposition>
            <header_release>2023-10-18</header_release>
            <map_release>2023-10-18</map_release>
            <update>2023-10-18</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>Agence Nationale de la Recherche (ANR)</funding_body>
                <code>ANR-18-CE11-0006-01</code>
                <country>France</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Agence Nationale de la Recherche (ANR)</funding_body>
                <code>ANR-21-CE29-0022</code>
                <country>France</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Agence Nationale de la Recherche (ANR)</funding_body>
                <code>ANR-15-IDEX-02</code>
                <country>France</country>
            </grant_reference>
            <grant_reference>
                <funding_body>Centre National de la Recherche Scientifique (CNRS)</funding_body>
                <code>ATIP-Avenir program</code>
                <country>France</country>
            </grant_reference>
        </grant_support>
        <title>Human N-deacetylase/N-sulfotransferase 1 homodimer</title>
        <authors_list>
            <author ORCID="0000-0001-9885-7499">Vallet SD</author>
            <author ORCID="0000-0002-9772-0762">Lortat-Jacob H</author>
            <author ORCID="0000-0003-2025-7228">Wild R</author>
        </authors_list>
        <keywords>heparan sulfate, bifunctional enzyme, Golgi, de-acetylatase &amp; sulfotransferease, BIOSYNTHETIC PROTEIN</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Vallet SD</author>
                    <author order="2">Annaval T</author>
                    <author order="3">Vives RR</author>
                    <author order="4">Richard E</author>
                    <author order="5">Henault J</author>
                    <author order="6">Le Narvor C</author>
                    <author order="7">Bonnaffe D</author>
                    <author order="8">Priem B</author>
                    <author order="9">Wild R</author>
                    <author order="10">Lortat-Jacob H</author>
                    <title>Functional and structural insights into human N-deacetylase/N-sulfotransferase activities</title>
                    <journal_abbreviation>Proteoglycan Res</journal_abbreviation>
                    <volume>1</volume>
                    <year>2023</year>
                    <external_references type="DOI">doi:10.1002/pgr2.8</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>NDST1 homodimer</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>NDST1 homodimer</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.22</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>N-deacetylase/N-sulfotransferase 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <details>Human NDST1 homodimer (residues 43-882), containing a linker and a 8-His tag at the C-terminus</details>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GASRGLEPSADAPEPDCGDPPPVAPSRLLPLKPVQAATPSRTDPLVLVFVESLYSQLGQE
VVAILESSRFKYRTEIAPGKGDMPTLTDKGRGRFALIIYENILKYVNLDAWNRELLDKYC
VAYGVGIIGFFKANENSLLSAQLKGFPLFLHSNLGLKDCSINPKSPLLYVTRPSEVEKGV
LPGEDWTVFQSNHSTYEPVLLAKTRSSESIPHLGADAGLHAALHATVVQDLGLHDGIQRV
LFGNNLNFWLHKLVFVDAVAFLTGKRLSLPLDRYILVDIDDIFVGKEGTRMKVEDVKALF
DTQNELRAHIPNFTFNLGYSGKFFHTGTNAEDAGDDLLLSYVKEFWWFPHMWSHMQPHLF
HNQSVLAEQMALNKKFAVEHGIPTDMGYAVAPHHSGVYPVHVQLYEAWKQVWSIRVTSTE
EYPHLKPARYRRGFIHNGIMVLPRQTCGLFTHTIFYNEYPGGSSELDKIINGGELFLTVL
LNPISIFMTHLSNYGNDRLGLYTFKHLVRFLHSWTNLRLQTLPPVQLAQKYFQIFSEEKD
PLWQDPCEDKRHKDIWSKEKTCDRFPKLLIIGPQKTGTTALYLFLGMHPDLSSNYPSSET
FEEIQFFNGHNYHKGIDWYMEFFPIPSNTTSDFYFEKSANYFDSEVAPRRAAALLPKAKV
LTILINPADRAYSWYQHQRAHDDPVALKYTFHEVITAGSDASSKLRALQNRCLVPGWYAT
HIERWLSAYHANQILVLDGKLLRTEPAKVMDMVQKFLGVTNTIDYHKTLAFDPKKGFWCQ
LLEGGKTKCLGKSKGRKYPEMDLDSRAFLKDYYRDHNIELSKLLYKMGQTLPTWLREDLQ
NTRNNNNNNGHHHHHHHH</string>
                    <external_references type="UNIPROTKB">P52848</external_references>
                </sequence>
                <ec_number>2.8.2.8</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">0.3</concentration>
                    <buffer>
                        <ph>6.5</ph>
                        <component>
                            <concentration units="mM">8.0</concentration>
                            <formula>MES</formula>
                            <name>2-Morpholinoethanesulfonic acid</name>
                        </component>
                        <component>
                            <concentration units="mM">150.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">45</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                        <details>Current: 25 mA</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>Blotted for 4 s with a blot force of 0. </details>
                    </vitrification>
                    <details>Protein eluted as monodisperse peak from size exclusion chromatography column</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>TFS GLACIOS</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.2</nominal_defocus_max>
                    <nominal_magnification>36000.0</nominal_magnification>
                    <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 K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <frames_per_image>1-44</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>3038</number_real_images>
                            <average_exposure_time units="s">4.4</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">38.9</average_electron_dose_per_image>
                            <details>Dataset was collected at a 30 degrees stage tilt angle</details>
                        </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>3554427</number_selected>
                </particle_selection>
                <startup_model type_of_model="NONE"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">4.5</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.3.1</version>
                            <processing_details>non-uniform refinement</processing_details>
                        </software>
                    </software_list>
                    <number_images_used>221316</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.3.1</version>
                            <processing_details>ab initio</processing_details>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.3.1</version>
                            <processing_details>non-uniform refinement</processing_details>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>3.3.1</version>
                            <processing_details>ab initio reconstruction</processing_details>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="131073">
        <file>emd_17349.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>320</col>
            <row>320</row>
            <sec>320</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>320</x>
            <y>320</y>
            <z>320</z>
        </spacing>
        <cell>
            <a units="Å">360.0</a>
            <b units="Å">360.0</b>
            <c units="Å">360.0</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>-0.83742154</minimum>
            <maximum>1.2649331</maximum>
            <average>0.00012342552</average>
            <std>0.028968407</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.125</x>
            <y units="Å">1.125</y>
            <z units="Å">1.125</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.262</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-17349::::</label>
        <annotation_details>EM map of human NDST1 homodimer</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <chain>
                        <residue_range>65-882</residue_range>
                        <source_name>AlphaFold</source_name>
                        <initial_model_type>in silico model</initial_model_type>
                    </chain>
                    <details>Model of NDST1 homodimer was predicted using AlphaFold2</details>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <details>CCC 0.658</details>
                <target_criteria>cross-correlation coefficient</target_criteria>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_17349_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="131073">
                <file>emd_17349_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>320</col>
                    <row>320</row>
                    <sec>320</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>320</x>
                    <y>320</y>
                    <z>320</z>
                </spacing>
                <cell>
                    <a units="Å">360.0</a>
                    <b units="Å">360.0</b>
                    <c units="Å">360.0</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>-0.43474278</minimum>
                    <maximum>0.83253783</maximum>
                    <average>0.0004418079</average>
                    <std>0.028734403</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.125</x>
                    <y units="Å">1.125</y>
                    <z units="Å">1.125</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-17349::::</label>
                <annotation_details>Half map B from final non-uniform refinement</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="131073">
                <file>emd_17349_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>320</col>
                    <row>320</row>
                    <sec>320</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>320</x>
                    <y>320</y>
                    <z>320</z>
                </spacing>
                <cell>
                    <a units="Å">360.0</a>
                    <b units="Å">360.0</b>
                    <c units="Å">360.0</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>-0.41934323</minimum>
                    <maximum>0.81089795</maximum>
                    <average>0.00044797797</average>
                    <std>0.02859072</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.125</x>
                    <y units="Å">1.125</y>
                    <z units="Å">1.125</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-17349::::</label>
                <annotation_details>Half map A from final non-uniform refinement</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
