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         <deposition>PDBe</deposition>
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      <key_dates>
         <deposition>2002-10-15</deposition>
         <header_release>2002-10-15</header_release>
         <map_release>2002-10-15</map_release>
         <update>2013-02-27</update>
      </key_dates>
      <title>Difference imaging of adenovirus: bridging the resolution gap between X-ray crystallography and electron microscopy.</title>
      <authors_list>
         <author>Stewart PL</author>
         <author>Fuller SD</author>
         <author>Burnett RM</author>
      </authors_list>
      <keywords>
         </keywords>
   </admin>
   <crossreferences>
      <citation_list>
         <primary_citation>
            <journal_citation published="true">
               <author order="1">Stewart PL</author>
               <author order="2">Fuller SD</author>
               <author order="3">Burnett RM</author>
               <title>Difference imaging of adenovirus: bridging the resolution gap between X-ray crystallography and electron microscopy.</title>
               <journal>EMBO J.</journal>
               <volume>12</volume>
               <first_page>2589</first_page>
               <last_page>2599</last_page>
               <year>1993</year>
               <external_references type="PUBMED">8334984</external_references>
            </journal_citation>
         </primary_citation>
      </citation_list>
   </crossreferences>
   <sample>
      <name>adenovirus type 2</name>
      <supramolecule_list>
         <sample_supramolecule supramolecule_id="1000">
            <name>adenovirus type 2</name>
            <oligomeric_state>T=25 particle</oligomeric_state>
            <number_unique_components>1</number_unique_components>
            <molecular_weight>
               <theoretical units="MDa">150</theoretical>
            </molecular_weight>
         </sample_supramolecule>
         <virus_supramolecule supramolecule_id="1">
            <name>Human adenovirus 2</name>
            <sci_species_name ncbi="10515">Human adenovirus 2</sci_species_name>
            <natural_host database="NCBI">
               <organism ncbi="9606">Homo sapiens</organism>
               <synonym_organism>VERTEBRATES</synonym_organism>
            </natural_host>
            <host_system database="NCBI">
               </host_system>
            <virus_shell shell_id="1">
               <name>fibres (5f positions) 1090A</name>
               <triangulation>25</triangulation>
            </virus_shell>
            <virus_shell shell_id="2">
               <name>capsid (along 2f) 884A</name>
               <triangulation>1</triangulation>
            </virus_shell>
            <virus_type>VIRION</virus_type>
            <virus_isolate>STRAIN</virus_isolate>
            <virus_enveloped>false</virus_enveloped>
            <virus_empty>false</virus_empty>
         </virus_supramolecule>
      </supramolecule_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">10</concentration>
               <buffer>
                  <ph>7.4</ph>
                  <details>Sample stored in CsCl was diluted in Tris (10mM) NaCl
 (100 mM) pH 7.4</details>
               </buffer>
               <vitrification>
                  <cryogen_name>ETHANE</cryogen_name>
                  <chamber_humidity units="percentage">60</chamber_humidity>
                  <chamber_temperature units="K">23</chamber_temperature>
                  <instrument>HOMEMADE PLUNGER</instrument>
                  <details>Vitrification instrument: EMBL plunger. plunging at ambient temperature and humidity</details>
                  <method>Blot for 2 sec</method>
               </vitrification>
            </single_particle_preparation>
         </specimen_preparation_list>
         <microscopy_list>
            <single_particle_microscopy microscopy_id="1">
               <microscope>FEI/PHILIPS EM400</microscope>
               <illumination_mode>FLOOD BEAM</illumination_mode>
               <imaging_mode>BRIGHT FIELD</imaging_mode>
               <electron_source>TUNGSTEN HAIRPIN</electron_source>
               <acceleration_voltage units="kV">80</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">8.8</nominal_defocus_max>
               <nominal_magnification>34000.0</nominal_magnification>
               <specimen_holder_model>GATAN LIQUID NITROGEN</specimen_holder_model>
               <temperature>
                  <temperature_average units="K">105</temperature_average>
               </temperature>
               <details>Details of the microscopy are in Stewart, P. L., Burnett,
 R. M., Cyrklaff, M. and Fuller, S. D. (1991). Image
 reconstruction reveals the complex molecular organization
 of adenovirus. Cell 67, 145-54. Images were taken in
 triples at 1, 2.6 and 8.8 microns underfocus. Some images
 were taken at 12 degrees tilt to compensate for the
 preference for the virus to orient with the fibres away
 from the water layer. For image reconstruction see: Stewart, P. L., Burnett, R. M.,Cyrklaff, M. and Fuller, S. D. (1991). Image reconstruction
 reveals the complex molecular organization of adenovirus. Cell 67,
 145-54. For reconstruction details see: P.L. Stewart, S.D.
 Fuller, R. M. Burnett, (1993). Difference imaging of
 adenovirus: bridging the resolution gap between X- ray
 crystallography and electron microscopy EMBO J.Stewart PL, Burnett RM. Adenovirus structure by X-ray crystallography and electron microscopy. Curr Top Microbiol Immunol. 1995, 199 (1):25-38.
The PDB code for the Ad2 hexon model is 1DHX, and the reference Athappilly, F. K., Murali, R., Rux, J. J., Cai, Z., Burnett, R. M.: The
refined crystal structure of hexon, the major coat protein of adenovirus
type 2, at 2.9 A resolution. J Mol Biol 242 pp. 430 (1994)</details>
               <date>1990-01-01</date>
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                  <image_recording>
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         </microscopy_list>
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            </ctf_correction>
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            </final_angle_assignment>
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