<emd emdb_id="EMD-2339" 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>2013-03-25</deposition>
            <header_release>2013-04-24</header_release>
            <map_release>2013-06-26</map_release>
            <update>2013-07-17</update>
        </key_dates>
        <title>Variable internal flexibility characterizes the helical capsid formed by Agrobacterium VirE2 protein on single-stranded DNA.</title>
        <authors_list>
            <author>Bharat TAM</author>
            <author>Zbaida D</author>
            <author>Eisenstein M</author>
            <author>Frankenstein Z</author>
            <author>Mehlman T</author>
            <author>Weiner L</author>
            <author>Sorzano COS</author>
            <author>Barak Y</author>
            <author>Albeck S</author>
            <author>Briggs JAG</author>
            <author>Wolf SG</author>
            <author>Elbaum M</author>
        </authors_list>
        <keywords>tcomplex, agrobacterium, helical reconstruction</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Bharat TA</author>
                    <author order="2">Zbaida D</author>
                    <author order="3">Eisenstein M</author>
                    <author order="4">Frankenstein Z</author>
                    <author order="5">Mehlman T</author>
                    <author order="6">Weiner L</author>
                    <author order="7">Sorzano CO</author>
                    <author order="8">Barak Y</author>
                    <author order="9">Albeck S</author>
                    <author order="10">Briggs JA</author>
                    <author order="11">Wolf SG</author>
                    <author order="12">Elbaum M</author>
                    <title>Variable internal flexibility characterizes the helical capsid formed by agrobacterium VirE2 protein on single-stranded DNA.</title>
                    <journal>STRUCTURE</journal>
                    <volume>21</volume>
                    <first_page>1158</first_page>
                    <last_page>1167</last_page>
                    <year>2013</year>
                    <external_references type="PUBMED">23769668</external_references>
                    <external_references type="DOI">doi:10.1016/j.str.2013.04.027</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>4blf</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Agrobacterium T-complex</name>
        <supramolecule_list>
            <sample_supramolecule supramolecule_id="1000">
                <name>Agrobacterium T-complex</name>
                <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>VirE2</name>
                <natural_source database="NCBI">
                    <organism ncbi="176299">Agrobacterium fabrum str. C58</organism>
                </natural_source>
                <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>SINGLE STRANDED</structure>
                <synthetic_flag>false</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">
                    <concentration units="mg/mL">1</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <details>50 mM Tris, 500 mM NaCl</details>
                    </buffer>
                    <grid>
                        <details>Quantifoil holey carbon</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">95</chamber_humidity>
                        <instrument>HOMEMADE PLUNGER</instrument>
                    </vitrification>
                    <details>Protein was mixed with 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">1.0</nominal_defocus_min>
                    <nominal_defocus_max units="&#181;m">3.2</nominal_defocus_max>
                    <nominal_magnification>50000.0</nominal_magnification>
                    <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
                    <alignment_procedure>
                        <legacy>
                            <astigmatism>Objective lens astigmatism was corrected at high-magnification (&gt;100,000)</astigmatism>
                        </legacy>
                    </alignment_procedure>
                    <date>2008-06-06</date>
                    <image_recording_list>
                        <image_recording>
                            <film_or_detector_model category="CCD">GENERIC TVIPS</film_or_detector_model>
                            <average_electron_dose_per_image units="e/&#8491;^2">20</average_electron_dose_per_image>
                            <details>Image data was collected as focal pairs.</details>
                        </image_recording>
                    </image_recording_list>
                </helical_microscopy>
            </microscopy_list>
            <helical_processing image_processing_id="1">
                <details>Particles were picked and preselected using routines of Xmipp, and then reconstruction was carried out using IHRSR.</details>
                <final_reconstruction>
                    <applied_symmetry>
                        <helical_parameters>
                            <delta_z units="&#8491;">14.67</delta_z>
                            <delta_phi units="deg">110.09</delta_phi>
                        </helical_parameters>
                    </applied_symmetry>
                    <resolution res_type="BY AUTHOR" units="&#8491;">20.0</resolution>
                    <resolution_method>FSC 0.5 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>Bsoft, EMAN, Xmipp, 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="1025">
        <file>emd_2339.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>64</col>
            <row>64</row>
            <sec>64</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>64</x>
            <y>64</y>
            <z>64</z>
        </spacing>
        <cell>
            <a units="&#8491;">276.48</a>
            <b units="&#8491;">276.48</b>
            <c units="&#8491;">276.48</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>-0.0447155</minimum>
            <maximum>0.05394139</maximum>
            <average>0.00051121</average>
            <std>0.01020005</std>
        </statistics>
        <pixel_spacing>
            <x units="&#8491;">4.32</x>
            <y units="&#8491;">4.32</y>
            <z units="&#8491;">4.32</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.008</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <annotation_details>CryoEM reconstruction of the Agrobacterium T-complex</annotation_details>
        <details>::::EMDATABANK.org::::EMD-2339::::</details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>3BTP</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                    </chain>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <software_list>
                    <software>
                        <name>fitPDB2EM</name>
                    </software>
                </software_list>
                <details>The N and C terminal domain were fit separately by exhaustive molecular modeling using the fitPDB2EM program. Only the N-terminal domain could be constrained strongly.</details>
                <target_criteria>Highest cross-correlation</target_criteria>
                <refinement_space>RECIPROCAL</refinement_space>
            </modelling>
        </modelling_list>
        <figure_list>
            <figure>
                <file>emd_2339.jpg</file>
            </figure>
        </figure_list>
    </interpretation>
</emd>