<emd emdb_id="EMD-3026" version="3.0.1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://github.com/emdb-empiar/emdb-schemas/blob/master/v3/v3_0_1_1/emdb_relaxed.xsd">
    <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>2015-05-27</deposition>
            <header_release>2015-08-12</header_release>
            <map_release>2015-08-12</map_release>
            <update>2016-03-09</update>
        </key_dates>
        <title>Electron cryo-microscopy of porcine Factor VIII bound to lipid nanotubes and single particle tomography reconstruction</title>
        <authors_list>
            <author>Dalm D</author>
            <author>Galaz-Montoya JG</author>
            <author>Miller JL</author>
            <author>Grushin K</author>
            <author>Villalobos A</author>
            <author>Koyfman AY</author>
            <author>Schmid MF</author>
            <author>Stoilova-McPhie S</author>
        </authors_list>
        <keywords>Blood coagulation factor VIII, Lipid nanotubes, Cryo-electron microscopy, Membrane-bound organization, Single particle tomography reconstruction</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Dalm D</author>
                    <author order="2">Galaz-Montoya JG</author>
                    <author order="3">Miller JL</author>
                    <author order="4">Grushin K</author>
                    <author order="5">Villalobos A</author>
                    <author order="6">Koyfman AY</author>
                    <author order="7">Schmid MF</author>
                    <author order="8">Stoilova-McPhie S</author>
                    <title>Dimeric Organization of Blood Coagulation Factor VIII bound to Lipid Nanotubes.</title>
                    <journal>SCI.REP.</journal>
                    <volume>5</volume>
                    <first_page>11212</first_page>
                    <last_page>11212</last_page>
                    <year>2015</year>
                    <external_references type="PUBMED">26082135</external_references>
                    <external_references type="DOI">doi:10.1038/srep11212</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author order="1">Galaz-Montoya JG</author>
                    <author order="2">Flanagan J</author>
                    <author order="3">Schmid MF</author>
                    <author order="4">Ludtke SJ</author>
                    <title>Single particle tomography in EMAN2</title>
                    <journal>J Structural Biology</journal>
                    <year>2015</year>
                    <external_references type="PUBMED">25956334</external_references>
                    <external_references type="DOI">doi:10.1016/j.jsb.2015.04.016</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Helically organized porcine blood coagulation Factor VIII bound to a lipid nanotube</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Helically organized porcine blood coagulation Factor VIII bound to a lipid nanotube</name>
                <details>The protein was monodisperse in solution and bound to the lipid nanotube in 1:1 w/w ratio to achieve helical organization</details>
                <oligomeric_state>dimer</oligomeric_state>
                <number_unique_components>2</number_unique_components>
                <molecular_weight>
                    <experimental units="MDa">0.17</experimental>
                    <theoretical units="MDa">0.17</theoretical>
                    <method>SDS gel and amino acid sequence</method>
                </molecular_weight>
            </sample_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name synonym="Hemophilia A factor">Blood coagulation Factor VIII</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <synonym_organism>PIG</synonym_organism>
                    <cell>blood</cell>
                </natural_source>
                <molecular_weight>
                    <experimental units="MDa">0.17</experimental>
                    <theoretical units="MDa">0.17</theoretical>
                </molecular_weight>
                <details>Recombinant porcine Factor VIII lacking the B domain was bound to lipid nanotubes and helically organized for structure analysis by cryo-EM.</details>
                <number_of_copies>4</number_of_copies>
                <oligomeric_state>2</oligomeric_state>
                <recombinant_exp_flag>true</recombinant_exp_flag>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="10029">Cricetulus griseus</recombinant_organism>
                    <recombinant_cell>BHK</recombinant_cell>
                </recombinant_expression>
                <sequence />
            </protein_or_peptide>
            <ligand macromolecule_id="2">
                <name>LIPID NANOTUBE</name>
                <natural_source database="NCBI">
                    <organism ncbi="32644">unidentified</organism>
                </natural_source>
                <recombinant_exp_flag>false</recombinant_exp_flag>
                <recombinant_expression database="NCBI" />
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>subtomogramAveraging</method>
            <aggregation_state>helicalArray</aggregation_state>
            <specimen_preparation_list>
                <subtomogram_averaging_preparation preparation_id="1">
                    <concentration units="mg/mL">1.0</concentration>
                    <buffer>
                        <ph>7.4</ph>
                        <details>20 mM HEPES, 150 mM NaCL, 5 mM CaCl2</details>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <details>The pFVIII-LNT ehlcial tubes were absorbed on amorphous carbon and stained with 1% Uranyl acetate</details>
                    </staining>
                    <grid>
                        <details>Evaporated carbon on mice was floated on 300 mesh copper grids, dried, glow discharged for 10 seconds</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>NONE</cryogen_name>
                        <instrument>OTHER</instrument>
                    </vitrification>
                    <details>The protein and lipid are mixed in 1:1 ration and incubated for 15 minutes</details>
                </subtomogram_averaging_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <subtomogram_averaging_microscopy microscopy_id="1">
                    <microscope>JEOL 2100</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>LAB6</electron_source>
                    <acceleration_voltage units="kV">200</acceleration_voltage>
                    <nominal_cs units="mm">2.0</nominal_cs>
                    <nominal_defocus_min units="&#181;m">-0.001</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">-0.0025</nominal_defocus_max>
                    <nominal_magnification>40000.0</nominal_magnification>
                    <calibrated_magnification>52000.0</calibrated_magnification>
                    <specimen_holder_model>SIDE ENTRY, EUCENTRIC</specimen_holder_model>
                    <date>2014-10-10</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GATAN ULTRASCAN 4000 (4k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/&#8491;^2">20</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                    <tilt_series>
                        <axis1>
                            <min_angle units="deg">2</min_angle>
                            <max_angle units="deg">60</max_angle>
                        </axis1>
                    </tilt_series>
                </subtomogram_averaging_microscopy>
            </microscopy_list>
            <subtomogram_averaging_processing image_processing_id="1">
                <details>described in details in the submitted references</details>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="&#8491;">36</delta_z>
                            <delta_phi units="deg">35.5</delta_phi>
                            <axial_symmetry>C5</axial_symmetry>
                        </helical_parameters>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="&#8491;">21.0</resolution>
                    <resolution_method>OTHER</resolution_method>
                    <software_list>
                        <software>
                            <name>EMAN2</name>
                        </software>
                    </software_list>
                    <number_subtomograms_used>756</number_subtomograms_used>
                </final_reconstruction>
            </subtomogram_averaging_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="3457">
        <file>emd_3026.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>96</col>
            <row>96</row>
            <sec>96</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>96</x>
            <y>96</y>
            <z>96</z>
        </spacing>
        <cell>
            <a units="&#8491;">278.40002</a>
            <b units="&#8491;">278.40002</b>
            <c units="&#8491;">278.40002</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>699.017517089999956</maximum>
            <average>30.404388430000001</average>
            <std>84.800666809999996</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">2.9000003</x>
            <y units="&#8491;">2.9000003</y>
            <z units="&#8491;">2.9000003</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>30.0</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>SPT reconstruction from tomograms of negatively stained porcine FVIII bound to LNT in a helical organization.
The volume is low pass filter to 20 Angstroms in EMAN2</annotation_details>
        <details>::::EMDATABANK.org::::EMD-3026::::</details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>3CDZ</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                    </chain>
                    <chain>
                        <chain_id>B</chain_id>
                    </chain>
                </initial_model>
                <refinement_protocol>RIGID BODY FIT</refinement_protocol>
                <software_list>
                    <software>
                        <name>UCSF Chimera</name>
                    </software>
                </software_list>
                <refinement_space>REAL</refinement_space>
            </modelling>
        </modelling_list>
    </interpretation>
</emd>