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    <admin>
        <current_status>
            <code>REL</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2015-08-10</deposition>
            <header_release>2015-08-26</header_release>
            <map_release>2015-12-23</map_release>
            <update>2016-02-17</update>
        </key_dates>
        <title>A Spiral Scaffold Underlies Cytoadherent Knobs in Plasmodium falciparum-Infected Erythrocytes</title>
        <authors_list>
            <author>Watermeyer JM</author>
            <author>Hale VL</author>
            <author>Hackett F</author>
            <author>Clare DK</author>
            <author>Cutts EE</author>
            <author>Vakonakis I</author>
            <author>Fleck RA</author>
            <author>Blackman MJ</author>
            <author>Saibil HR</author>
        </authors_list>
        <keywords>malaria, Plasmodium, knobs, cytoadherence, KAHRP, erythrocyte, skeleton, schizont, blood</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Watermeyer JM</author>
                    <author order="2">Hale VL</author>
                    <author order="3">Hackett F</author>
                    <author order="4">Clare DK</author>
                    <author order="5">Cutts EE</author>
                    <author order="6">Vakonakis I</author>
                    <author order="7">Fleck RA</author>
                    <author order="8">Blackman MJ</author>
                    <author order="9">Saibil HR</author>
                    <title>A spiral scaffold underlies cytoadherent knobs in Plasmodium falciparum-infected erythrocytes.</title>
                    <journal>BLOOD</journal>
                    <volume>127</volume>
                    <first_page>343</first_page>
                    <last_page>351</last_page>
                    <year>2016</year>
                    <external_references type="PUBMED">26637786</external_references>
                    <external_references type="DOI">doi:10.1182/blood-2015-10-674002</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-3117</emdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-3122</emdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-3123</emdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Detergent-resistant skeleton of P. falciparum schizont</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Detergent-resistant skeleton of P. falciparum schizont</name>
                <number_unique_components>1</number_unique_components>
            </sample_supramolecule>
            <organelle_or_cellular_component_supramolecule supramolecule_id="1">
                <name>Cytoskeleton with knobs</name>
                <details>Mature schizonts were lysed and detergent-extracted on EM grids, then plunge-frozen.</details>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <natural_source database="NCBI">
                    <organism ncbi="5833">Plasmodium falciparum</organism>
                    <strain>3D7</strain>
                    <synonym_organism>malaria parasite</synonym_organism>
                    <cell>schizont</cell>
                    <cellular_location>erythrocyte cytoskeleton</cellular_location>
                </natural_source>
                <recombinant_expression database="NCBI" />
            </organelle_or_cellular_component_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>tomography</method>
            <aggregation_state>cell</aggregation_state>
            <specimen_preparation_list>
                <tomography_preparation preparation_id="1">
                    <buffer>
                        <ph>7.4</ph>
                    </buffer>
                    <grid>
                        <details>300 mesh copper grid with lacy carbon support and thin carbon overlay</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <instrument>HOMEMADE PLUNGER</instrument>
                    </vitrification>
                </tomography_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <tomography_microscopy microscopy_id="1">
                    <microscope>FEI POLARA 300</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>
                    <nominal_cs units="mm">2.3</nominal_cs>
                    <nominal_defocus_min units="&#181;m">8.0</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">8.0</nominal_defocus_max>
                    <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
                    <specialist_optics>
                        <energy_filter>
                            <name>Gatan Quantum</name>
                        </energy_filter>
                    </specialist_optics>
                    <details>counting mode</details>
                    <date>2014-08-01</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GATAN K2 (4k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/&#8491;^2">53</average_electron_dose_per_image>
                            <details>Images were the average of 6 subframes recorded by the direct electron detector</details>
                        </image_recording>
                    </image_recording_list>
                    <tilt_series>
                        <axis1>
                            <min_angle units="deg">-69</min_angle>
                            <max_angle units="deg">53</max_angle>
                            <angle_increment units="deg">2</angle_increment>
                        </axis1>
                    </tilt_series>
                </tomography_microscopy>
            </microscopy_list>
            <tomography_processing image_processing_id="1">
                <final_reconstruction>
                    <software_list>
                        <software>
                            <name>IMOD</name>
                        </software>
                    </software_list>
                    <number_images_used>62</number_images_used>
                </final_reconstruction>
                <ctf_correction>
                    <details>each image</details>
                </ctf_correction>
            </tomography_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="807361">
        <file>emd_3116.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS SIGNED INTEGER (2 BYTES)</data_type>
        <dimensions>
            <col>1856</col>
            <row>1920</row>
            <sec>116</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>57</sec>
        </origin>
        <spacing>
            <x>1920</x>
            <y>1856</y>
            <z>116</z>
        </spacing>
        <cell>
            <a units="&#8491;">20007.68</a>
            <b units="&#8491;">20697.6</b>
            <c units="&#8491;">1250.48</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>0.0</minimum>
            <maximum>32510.0</maximum>
            <average>16730.369140629998583</average>
            <std>1202.041992189999974</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">10.78</x>
            <y units="&#8491;">10.78</y>
            <z units="&#8491;">10.78</z>
        </pixel_spacing>
        <annotation_details>Cryo-tomogram of detergent-extracted cytoskeleton of P. falciparum-infected erythrocyte, schiztont stage, showing knob skeletons. Map has been NAD and high-pass filtered to remove background gradient.</annotation_details>
        <details>::::EMDATABANK.org::::EMD-3116::::</details>
    </map>
</emd>