<emd emdb_id="EMD-2368" 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>2013-04-23</deposition>
            <header_release>2013-05-29</header_release>
            <map_release>2013-06-05</map_release>
            <update>2013-06-05</update>
        </key_dates>
        <title>Negative-staining electron microscopy structure of the Agrobacterium tumefaciens T-complex, composed of the protein VirE2 coating single-stranded DNA.</title>
        <authors_list>
            <author>Abu-Arish A</author>
            <author>Frenkiel-Krispin D</author>
            <author>Fricke T</author>
            <author>Tzfira T</author>
            <author>Citovsky V</author>
            <author>Wolf SG</author>
            <author>Elbaum M</author>
        </authors_list>
        <keywords>T-complex, agrobacterium, helical reconstruction, negative staining</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Abu-Arish A</author>
                    <author order="2">Frenkiel-Krispin D</author>
                    <author order="3">Fricke T</author>
                    <author order="4">Tzfira T</author>
                    <author order="5">Citovsky V</author>
                    <author order="6">Wolf SG</author>
                    <author order="7">Elbaum M</author>
                    <title>Three-dimensional reconstruction of Agrobacterium VirE2 protein with single-stranded DNA.</title>
                    <journal>J.BIOL.CHEM.</journal>
                    <volume>279</volume>
                    <first_page>25359</first_page>
                    <last_page>25363</last_page>
                    <year>2004</year>
                    <external_references type="PUBMED">15054095</external_references>
                    <external_references type="DOI">doi:10.1074/jbc.M401804200</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
    </crossreferences>
    <sample>
        <name>Negative-staining recosntruction of the Agrobacterium T-complex</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Negative-staining recosntruction of the Agrobacterium T-complex</name>
                <details>Helical assembly</details>
                <oligomeric_state>Helical</oligomeric_state>
                <number_unique_components>2</number_unique_components>
            </sample_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Agrobacterium tumefaciens VirE2 protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="176299">Agrobacterium fabrum str. C58</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.058</theoretical>
                </molecular_weight>
                <details>Negative-staining EM reconstruction of the Agrobacterium T-complex</details>
                <oligomeric_state>Helical</oligomeric_state>
                <recombinant_exp_flag>true</recombinant_exp_flag>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <sequence />
            </protein_or_peptide>
            <dna macromolecule_id="2">
                <name>short oligomeric 26mer DNA</name>
                <natural_source database="NCBI">
                    <organism ncbi="176299">Agrobacterium fabrum str. C58</organism>
                </natural_source>
                <classification>DNA</classification>
                <structure>DOUBLE HELIX</structure>
                <synthetic_flag>true</synthetic_flag>
            </dna>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>helical</method>
            <aggregation_state>helicalArray</aggregation_state>
            <specimen_preparation_list>
                <helical_preparation preparation_id="1">
                    <staining>
                        <type>NEGATIVE</type>
                        <details>1.5% Uranyl acetate staining</details>
                    </staining>
                    <grid>
                        <details>Carbon coated grids</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>NONE</cryogen_name>
                        <instrument>OTHER</instrument>
                    </vitrification>
                    <details>Protein was mixed with M13 circular single-stranded DNA.</details>
                </helical_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <helical_microscopy microscopy_id="1">
                    <microscope>FEI TECNAI F20</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>
                    <nominal_cs units="mm">2</nominal_cs>
                    <nominal_defocus_min units="&#181;m">0.6</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">2.7</nominal_defocus_max>
                    <specimen_holder_model>OTHER</specimen_holder_model>
                    <date>2004-01-01</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GENERIC TVIPS</film_or_detector_model>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <details>Helical reconstruction using IHRSR</details>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="&#8491;">12.11</delta_z>
                            <delta_phi units="deg">84.7</delta_phi>
                        </helical_parameters>
                    </applied_symmetry>
                    <algorithm>OTHER</algorithm>
                    <resolution res_type="BY AUTHOR" units="&#8491;">25.0</resolution>
                    <software_list>
                        <software>
                            <name>Bsoft, Spider, IHRSR</name>
                        </software>
                    </software_list>
                </final_reconstruction>
                <ctf_correction>
                    <details>Phase-flipping</details>
                </ctf_correction>
            </helical_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="2001">
        <file>emd_2368.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>80</col>
            <row>80</row>
            <sec>80</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>80</x>
            <y>80</y>
            <z>80</z>
        </spacing>
        <cell>
            <a units="&#8491;">256.0</a>
            <b units="&#8491;">256.0</b>
            <c units="&#8491;">256.0</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>-0.00776185</minimum>
            <maximum>0.04504754</maximum>
            <average>0.00569092</average>
            <std>0.0096853</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">3.2</x>
            <y units="&#8491;">3.2</y>
            <z units="&#8491;">3.2</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.0175</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>Negative-staining EM reconstruction of the Agrobacterium T-complex</annotation_details>
        <details>::::EMDATABANK.org::::EMD-2368::::</details>
    </map>
    <interpretation>
        <figure_list>
            <figure>
                <file>emd_2368.jpg</file>
            </figure>
        </figure_list>
    </interpretation>
</emd>