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    <admin>
        <current_status>
            <date>2024-03-20</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-09-06</deposition>
            <header_release>2019-09-18</header_release>
            <map_release>2019-09-18</map_release>
            <update>2024-03-20</update>
        </key_dates>
        <title>Adeno-associated virus strain AAVhu.37 capsid icosahedral structure</title>
        <authors_list>
            <author>Kaelber JT</author>
            <author>Yost SA</author>
        </authors_list>
        <keywords>capsid, blood-brain barrier penetration, VIRUS</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Kaelber JT</author>
                    <author order="2">Yost SA</author>
                    <author order="3">Webber KA</author>
                    <author order="4">Firlar E</author>
                    <author order="5">Liu Y</author>
                    <author order="6">Danos O</author>
                    <author order="7">Mercer AC</author>
                    <title>Structure of the AAVhu.37 capsid by cryoelectron microscopy.</title>
                    <journal_abbreviation>Acta Crystallogr.,Sect.F</journal_abbreviation>
                    <country>US</country>
                    <volume>76</volume>
                    <first_page>58</first_page>
                    <last_page>64</last_page>
                    <year>2020</year>
                    <external_references type="PUBMED">32039886</external_references>
                    <external_references type="DOI">doi:10.1107/S2053230X20000308</external_references>
                    <external_references type="ISSN">2053-230X</external_references>
                    <external_references type="ASTM">ACSFEN</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6u95</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Adeno-associated virus</name>
        <supramolecule_list>
            <virus_supramolecule supramolecule_id="1">
                <name>Adeno-associated virus</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>Virions containing GFP-encoding ssDNA were assembled in transfected HEK293T helper cells.</details>
                <sci_species_name ncbi="272636">Adeno-associated virus</sci_species_name>
                <sci_species_strain>hu.37</sci_species_strain>
                <natural_host database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_host>
                <molecular_weight>
                    <theoretical units="MDa">5</theoretical>
                </molecular_weight>
                <virus_shell shell_id="1">
                    <diameter units="Å">250.0</diameter>
                    <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>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Capsid protein VP1</name>
                <natural_source database="NCBI">
                    <organism ncbi="272636">Adeno-associated virus</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.081528852</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="9606">Homo sapiens</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>AADGYLPDWLEDNLSEGIREWWDLKPGAPKPKANQQKQDDGRGLVLPGYKYLGPFNGLDKGEPVNAADAAALEHDKAYDQ
QLKAGDNPYLRYNHADAEFQERLQEDTSFGGNLGRAVFQAKKRVLEPLGLVEEAAKTAPGKKRPVEPSPQRSPDSSTGIG
KKGQQPAKKRLNFGQTGDSESVPDPQPIGEPPAGPSGLGSGTMAAGGGAPMADNNEGADGVGSSSGNWHCDSTWLGDRVI
TTSTRTWALPTYNNHLYKQISNGTSGGSTNDNTYFGYSTPWGYFDFNRFHCHFSPRDWQRLINNNWGFRPKRLSFKLFNI
QVKEVTQNEGTKTIANNLTSTIQVFTDSEYQLPYVLGSAHQGCLPPFPADVFMIPQYGYLTLNNGSQAVGRSSFYCLEYF
PSQMLRTGNNFEFSYTFEDVPFHSSYAHSQSLDRLMNPLIDQYLYYLSRTQSTGGTQGTQQLLFSQAGPANMSAQAKNWL
PGPCYRQQRVSTTLSQNNNSNFAWTGATKYHLNGRDSLVNPGVAMATHKDDEERFFPSSGVLMFGKQGAGRDNVDYSSVM
LTSEEEIKTTNPVATEQYGVVADNLQQTNTGPIVGNVNSQGALPGMVWQNRDVYLQGPIWAKIPHTDGNFHPSPLMGGFG
LKHPPPQILIKNTPVPADPPTTFSQAKLASFITQYSTGQVSVEIEWELQKENSKRWNPEIQYTSNYYKSTNVDFAVNTEG
TYSEPRPIGTRYLTRNL</string>
                    <external_references type="UNIPROTKB">Q6JC19</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">
                    <buffer>
                        <ph>7.4</ph>
                        <component>
                            <concentration units="g/L">9.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="g/L">0.144</concentration>
                            <formula>KH2PO4</formula>
                            <name>potassium phosphate dibasic</name>
                        </component>
                        <component>
                            <concentration units="g/L">0.795</concentration>
                            <formula>Na2HPO4</formula>
                            <name>sodium phosphate monobasic</name>
                        </component>
                        <details>PBS</details>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/1</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>CONTINUOUS</film_topology>
                            <film_thickness>2.8600000000000003</film_thickness>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">25</time>
                            <atmosphere>AIR</atmosphere>
                            <pressure units="kPa">0.037</pressure>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">298</chamber_temperature>
                        <instrument>LEICA EM GP</instrument>
                        <details>Whatman #1 filter paper, 4.5s blot. 3.5 microliters specimen applied.. </details>
                    </vitrification>
                    <details>approx. 7*10^13 genome copies per mL</details>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TALOS ARCTICA</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>
                    <c2_aperture_diameter units="µm">50.0</c2_aperture_diameter>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <calibrated_defocus_min units="µm">0.535</calibrated_defocus_min>
                    <calibrated_defocus_max units="µm">1.584</calibrated_defocus_max>
                    <nominal_magnification>130000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <zemlin_tableau/>
                    </alignment_procedure>
                    <specialist_optics>
                        <sph_aberration_corrector>none</sph_aberration_corrector>
                        <chr_aberration_corrector>none</chr_aberration_corrector>
                        <energy_filter>
                            <name>GIF Bioquantum</name>
                            <slit_width units="eV">20</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3838</width>
                                    <height units="pixel">3710</height>
                                </dimensions>
                                <frames_per_image>1-25</frames_per_image>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <average_exposure_time units="s">5.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">1.31</average_electron_dose_per_image>
                            <details>collected in superresolution mode</details>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>53545</number_selected>
                </particle_selection>
                <startup_model type_of_model="NONE">
                    <details>ab initio</details>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>I</point_group>
                    </applied_symmetry>
                    <algorithm>FOURIER SPACE</algorithm>
                    <resolution units="Å" res_type="BY AUTHOR">2.56</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.9.0</version>
                        </software>
                    </software_list>
                    <details>2.8 unmasked, 2.53 masked, 2.56 with noise-substitution ("true FSC"). 2.7 3-bit unmasked.</details>
                    <number_images_used>41850</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.9.0</version>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.9.0</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.9.0</version>
                        </software>
                    </software_list>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="702465">
        <file>emd_20693.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>560</col>
            <row>560</row>
            <sec>560</sec>
        </dimensions>
        <origin>
            <col>-280</col>
            <row>-280</row>
            <sec>-280</sec>
        </origin>
        <spacing>
            <x>560</x>
            <y>560</y>
            <z>560</z>
        </spacing>
        <cell>
            <a units="Å">392.36398</a>
            <b units="Å">392.36398</b>
            <c units="Å">392.36398</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>-0.7067622</minimum>
            <maximum>1.3878311</maximum>
            <average>0.043222647</average>
            <std>0.2187148</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">0.70065</x>
            <y units="Å">0.70065</y>
            <z units="Å">0.70065</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.75</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-20693::::</label>
        <annotation_details>icosahedrally-averaged map of AAVhu.37</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <initial_model>
                    <access_code>2QA0</access_code>
                    <chain>
                        <chain_id>A</chain_id>
                        <residue_range>220-738</residue_range>
                        <source_name>PDB</source_name>
                        <initial_model_type>experimental model</initial_model_type>
                    </chain>
                </initial_model>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
            </modelling>
        </modelling_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="702465">
                <file>emd_20693_half_map_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>560</col>
                    <row>560</row>
                    <sec>560</sec>
                </dimensions>
                <origin>
                    <col>-280</col>
                    <row>-280</row>
                    <sec>-280</sec>
                </origin>
                <spacing>
                    <x>560</x>
                    <y>560</y>
                    <z>560</z>
                </spacing>
                <cell>
                    <a units="Å">392.36398</a>
                    <b units="Å">392.36398</b>
                    <c units="Å">392.36398</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>-1.0287962</minimum>
                    <maximum>1.5579377</maximum>
                    <average>0.043315865</average>
                    <std>0.22755516</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.70065</x>
                    <y units="Å">0.70065</y>
                    <z units="Å">0.70065</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-20693::::</label>
                <annotation_details>half A</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="702465">
                <file>emd_20693_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>560</col>
                    <row>560</row>
                    <sec>560</sec>
                </dimensions>
                <origin>
                    <col>-280</col>
                    <row>-280</row>
                    <sec>-280</sec>
                </origin>
                <spacing>
                    <x>560</x>
                    <y>560</y>
                    <z>560</z>
                </spacing>
                <cell>
                    <a units="Å">392.36398</a>
                    <b units="Å">392.36398</b>
                    <c units="Å">392.36398</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>-1.1054964</minimum>
                    <maximum>1.5416021</maximum>
                    <average>0.043129433</average>
                    <std>0.22740273</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">0.70065</x>
                    <y units="Å">0.70065</y>
                    <z units="Å">0.70065</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-20693::::</label>
                <annotation_details>half B</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
