<?xml version="1.0" encoding="UTF-8"?>
<emd emdb_id="EMD-2449" version="3.0.1.9">
    <admin>
        <status_history_list>
            <status status_id="1">
                <code>HPUB</code>
            </status>
        </status_history_list>
        <current_status>
            <code>OBS</code>
            <processing_site>PDBe</processing_site>
        </current_status>
        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
        </sites>
        <key_dates>
            <deposition>2013-09-05</deposition>
            <header_release>2013-10-09</header_release>
            <obsolete>2015-01-14</obsolete>
            <update>2015-01-14</update>
        </key_dates>
        <title>Electron microscopy of the complex formed by chaperones TBCE and TBCB and alpha-tubulin</title>
        <authors_list>
            <author>Serna M</author>
            <author>Carranza G</author>
            <author>Martin-Benito J</author>
            <author>Janowsk R</author>
            <author>Canals A</author>
            <author>Coll M</author>
            <author>Zabala JC</author>
            <author>Valpuesta JM</author>
        </authors_list>
        <keywords>chaperones, protein folding, protein degradation, tubulin proteostasis</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="false">
                    <author order="1">Serna M</author>
                    <author order="2">Carranza G</author>
                    <author order="3">Martin-Benito J</author>
                    <author order="4">Janowski R</author>
                    <author order="5">Canals A</author>
                    <author order="6">Coll M</author>
                    <author order="7">Zabala JC</author>
                    <author order="8">Valpuesta JM</author>
                    <title>The structure of the complex formed by chaperones TBCE and TBCB and alpha-tubulin reveals a mechanically driven dissociation of the tubulin dimer</title>
                    <journal>To Be Published</journal>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Human Tubulin Binding Cofactor E</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Human Tubulin Binding Cofactor E</name>
                <oligomeric_state>Monomer</oligomeric_state>
                <number_unique_components>1</number_unique_components>
                <molecular_weight>
                    <theoretical units="MDa">0.059</theoretical>
                </molecular_weight>
            </sample_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name synonym="Tubulin-specific chaperone E">Tubulin binding cofactor E</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                    <synonym_organism>Human</synonym_organism>
                    <cellular_location>Cytoplasm</cellular_location>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.059</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <oligomeric_state>Monomer</oligomeric_state>
                <recombinant_exp_flag>true</recombinant_exp_flag>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                    <recombinant_cell>Sf9</recombinant_cell>
                    <recombinant_plasmid>pFastBac-1</recombinant_plasmid>
                </recombinant_expression>
                <sequence>
                    <external_references type="UNIPROTKB">Q15813</external_references>
                </sequence>
            </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">0.01</concentration>
                    <buffer>
                        <ph>6.7</ph>
                        <details>100mM MES-NaOH, 25mM KCl, 1mM MgCl2, 1mM EGTA</details>
                    </buffer>
                    <staining>
                        <type>NEGATIVE</type>
                        <details>Grids with adsorbed protein floated on 2% w/v uranyl acetate for 1 min.</details>
                    </staining>
                    <grid>
                        <details>300 mesh copper grid with thin carbon support, glow discharged in air atmosphere</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>NONE</cryogen_name>
                        <instrument>OTHER</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>JEOL 1200EXII</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>TUNGSTEN HAIRPIN</electron_source>
                    <acceleration_voltage units="kV">100</acceleration_voltage>
                    <nominal_cs units="mm">5.6</nominal_cs>
                    <nominal_defocus_min units="µm">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">1.5</nominal_defocus_max>
                    <nominal_magnification>60000.0</nominal_magnification>
                    <specimen_holder_model>JEOL</specimen_holder_model>
                    <alignment_procedure>
                        <legacy>
                            <astigmatism>Objective lens astigmatism was corrected at 100,000 times magnification</astigmatism>
                        </legacy>
                    </alignment_procedure>
                    <date>2011-02-01</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="FILM">KODAK SO-163 FILM</film_or_detector_model>
                            <digitization_details>
                                <scanner>ZEISS SCAI</scanner>
                                <sampling_interval units="µm">14</sampling_interval>
                            </digitization_details>
                            <number_real_images>68</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">10</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <details>The particles were manually selected using the XMIPP program</details>
                <ctf_correction>
                    <details>N. Grigorieff CTFFIND3</details>
                </ctf_correction>
                <final_reconstruction>
                    <algorithm>OTHER</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">17.0</resolution>
                    <resolution_method>FSC 0.33 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>EMAN, Spider, XMIPP</name>
                        </software>
                    </software_list>
                    <details>Individual particles were manually selected using XMIPP software package.</details>
                    <number_images_used>12000</number_images_used>
                </final_reconstruction>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="55">
        <file>emd_2449.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>24</col>
            <row>24</row>
            <sec>24</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>24</x>
            <y>24</y>
            <z>24</z>
        </spacing>
        <cell>
            <a units="Å">111.84</a>
            <b units="Å">111.84</b>
            <c units="Å">111.84</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>-0.06966436</minimum>
            <maximum>0.16886918</maximum>
            <average>0.00422765</average>
            <std>0.0253699</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">4.66</x>
            <y units="Å">4.66</y>
            <z units="Å">4.66</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.051</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Reconstruction of the human and wildtype TBCE</annotation_details>
        <details>::::EMDATABANK.org::::EMD-2449::::</details>
    </map>
</emd>
