<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_3/emdb.xsd" version="3.0.9.3" emdb_id="EMD-23267">
    <admin>
        <current_status>
            <date>2024-10-16</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2021-01-09</deposition>
            <header_release>2021-03-24</header_release>
            <map_release>2021-03-24</map_release>
            <update>2024-10-16</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>5R01GM101001</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>U24-GM116790</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>1F32GM126647-01</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Bacterial cellulose synthase BcsB  with polyalanine BcsA model</title>
        <authors_list>
            <author>Acheson JF</author>
            <author>Zimmer J</author>
        </authors_list>
        <keywords>bacterial cellulose, synthase, structural subunit, BIOSYNTHETIC PROTEIN, TRANSFERASE</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Acheson JF</author>
                    <author ORCID="0000-0002-2369-8443" order="2">Ho R</author>
                    <author ORCID="0000-0001-6557-9349" order="3">Goularte NF</author>
                    <author ORCID="0000-0002-0978-1814" order="4">Cegelski L</author>
                    <author ORCID="0000-0002-8423-2882" order="5">Zimmer J</author>
                    <title>Molecular organization of the E. coli cellulose synthase macrocomplex.</title>
                    <journal_abbreviation>Nat.Struct.Mol.Biol.</journal_abbreviation>
                    <country>US</country>
                    <volume>28</volume>
                    <first_page>310</first_page>
                    <last_page>318</last_page>
                    <year>2021</year>
                    <external_references type="PUBMED">33712813</external_references>
                    <external_references type="DOI">doi:10.1038/s41594-021-00569-7</external_references>
                    <external_references type="ISSN">1545-9985</external_references>
                </journal_citation>
            </primary_citation>
            <secondary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0001-5051-9984" order="6">Acheson JF</author>
                    <author order="7">Ho R</author>
                    <author order="8">Goularte NF</author>
                    <author order="9">Cegelski L</author>
                    <author ORCID="0000-0002-8423-2882" order="10">Zimmer J</author>
                    <title>Molecular Organization of the E. coli Cellulose Synthase Macrocomplex</title>
                    <journal_abbreviation>Nat.Struct.Mol.Biol.</journal_abbreviation>
                    <country>US</country>
                    <year>2021</year>
                    <external_references type="DOI">doi:10.1038/s41594-021-00568-8</external_references>
                    <external_references type="ISSN">1545-9985</external_references>
                </journal_citation>
            </secondary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>7lby</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Bacterial cellulose synthase BcsB with BcsA</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Bacterial cellulose synthase BcsB with BcsA</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>BcsB monomer with BcsA refined using masked local refinement and signal subtraction from E coli BCS inner-membrane complex projections.</details>
                <natural_source database="NCBI">
                    <organism ncbi="83333">Escherichia coli K-12</organism>
                    <cellular_location>inner membrane</cellular_location>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.180</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Cellulose synthase catalytic subunit [UDP-forming]</name>
                <natural_source database="NCBI">
                    <organism ncbi="83333">Escherichia coli (strain K12)</organism>
                    <strain>K12</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.10167124999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GSILTRWLLIPPVNARLIGRYRDYRRHGASAFSATLGCFWMILAWIFIPLEHPRWQRIRAEHKNLYPHINASRPRPLDPV
RYLIQTCWLLIGASRKETPKPRRRAFSGLQNIRGRYHQWMNELPERVSHKTQHLDEKKELGHLSAGARRLILGIIVTFSL
ILALICVTQPFNPLAQFIFLMLLWGVALIVRRMPGRFSALMLIVLSLTVSCRYIWWRYTSTLNWDDPVSLVCGLILLFAE
TYAWIVLVLGYFQVVWPLNRQPVPLPKDMSLWPSVDIFVPTYNEDLNVVKNTIYASLGIDWPKDKLNIWILDDGGREEFR
QFAQNVGVKYIARTTHEHAKAGNINNALKYAKGEFVSIFDCDHVPTRSFLQMTMGWFLKEKQLAMMQTPHHFFSPDPFER
NLGRFRKTPNEGTLFYGLVQDGNDMWDATFFCGSCAVIRRKPLDEIGGIAVETVTEDAHTSLRLHRRGYTSAYMRIPQAA
GLATESLSAHIGQRIRWARGMVQIFRLDNPLTGKGLKFAQRLCYVNAMFHFLSGIPRLIFLTAPLAFLLLHAYIIYAPAL
MIALFVLPHMIHASLTNSKIQGKYRHSFWSEIYETVLAWYIAPPTLVALINPHKGKFNVTAKGGLVEEEYVDWVISRPYI
FLVLLNLVGVAVGIWRYFYGPPTEMLTVVVSMVWVFYNLIVLGGAVAVSVESKQVRRSHRVEMTMPAAIAREDGHLFSCT
VQDFSDGGLGIKINGQAQILEGQKVNLLLKRGQQEYVFPTQVARVMGNEVGLKLMPLTTQQHIDFVQCTFARADTWALWQ
DSYPEDKPLESLLDILKLGFRGYRHLAEFAPSSVKGIFRVLTSLVSWVVSFIPPRPERSETAQPSDQALAQQHHHHHHLE
HHHHHH</string>
                    <external_references type="UNIPROTKB">P37653</external_references>
                </sequence>
                <ec_number>2.4.1.12</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Cyclic di-GMP-binding protein</name>
                <natural_source database="NCBI">
                    <organism ncbi="83333">Escherichia coli (strain K12)</organism>
                    <strain>K12</strain>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.086101289</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="511693">Escherichia coli BL21</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKRKLFWICAVAMGMSAFPSFMTQATPATQPLINAEPAVAAQTEQNPQVGQVMPGVQGADAPVVAQNGPSRDVKLTFAQI
APPPGSMVLRGINPNGSIEFGMRSDEVVTKAMLNLEYTPSPSLLPVQSQLKVYLNDELMGVLPVTKEQLGKKTLAQMPIN
PLFISDFNRVRLEFVGHYQDVCEKPASTTLWLDVGRSSGLDLTYQTLNVKNDLSHFPVPFFDPSDNRTNTLPMVFAGAPD
VGLQQASAIVASWFGSRSGWRGQNFPVLYNQLPDRNAIVFATNDKRPDFLRDHPAVKAPVIEMINHPQNPYVKLLVVFGR
DDKDLLQAAKGIAQGNILFRGESVVVNEVKPLLPRKPYDAPNWVRTDRPVTFGELKTYEEQLQSSGLEPAAINVSLNLPP
DLYLMRSTGIDMDINYRYTMPPVKDSSRMDISLNNQFLQSFNLSSKQEANRLLLRIPVLQGLLDGKTDVSIPALKLGATN
QLRFDFEYMNPMPGGSVDNCITFQPVQNHVVIGDDSTIDFSKYYHFIPMPDLRAFANAGFPFSRMADLSQTITVMPKAPN
EAQMETLLNTVGFIGAQTGFPAINLTVTDDGSTIQGKDADIMIIGGIPDKLKDDKQIDLLVQATESWVKTPMRQTPFPGI
VPDESDRAAETRSTLTSSGAMAAVIGFQSPYNDQRSVIALLADSPRGYEMLNDAVNDSGKRATMFGSVAVIRESGINSLR
VGDVYYVGHLPWFERVWYALANHPILLAVLAAISVILLAWVLWRLLRIISRRRLNPDNE</string>
                    <external_references type="UNIPROTKB">P37652</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">0.4</concentration>
                    <buffer>
                        <ph>8.0</ph>
                        <component>
                            <concentration units="mM">50.0</concentration>
                            <formula>C8H18N2O4S</formula>
                            <name>HEPES</name>
                        </component>
                        <component>
                            <concentration units="mM">150.0</concentration>
                            <formula>NaCl</formula>
                            <name>sodium chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">0.5</concentration>
                            <formula>C12H22O11</formula>
                            <name>cellobiose</name>
                        </component>
                        <component>
                            <concentration units="mM">5.0</concentration>
                            <formula>MgCl2</formula>
                            <name>magnesium chloride</name>
                        </component>
                        <component>
                            <concentration units="%">0.003</concentration>
                            <formula>C47H88O22</formula>
                            <name>LMNG</name>
                        </component>
                        <component>
                            <concentration units="%">0.0006</concentration>
                            <formula>C43H80O22</formula>
                            <name>DMNG</name>
                        </component>
                        <component>
                            <concentration units="%">0.0006</concentration>
                            <formula>C31H50O4</formula>
                            <name>CHS</name>
                        </component>
                        <details>All buffers made fresh from concentrated stock. A 10% LMNG 2% DMNG 2% CHS solution was made made in milliQ water without buffer. After rocking for one day at room temp the solution was briefly sonicated to completely dissolve the CHS.</details>
                    </buffer>
                    <grid>
                        <model>C-flat-1.2/1.3</model>
                        <material>COPPER</material>
                        <mesh>300</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <atmosphere>OTHER</atmosphere>
                        </pretreatment>
                        <details>2 drops amylamine added to the chamber</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                        <details>3.5 uL applied to c-flat 1.2/1.3 300 mesh grids incubated for 30s then blotted using force 6 for 12 seconds. </details>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">-1.0</nominal_defocus_min>
                    <nominal_defocus_max units="µm">-2.5</nominal_defocus_max>
                    <nominal_magnification>81000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Bioquantum</name>
                            <slit_width units="eV">10</slit_width>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 BIOQUANTUM (6k x 4k)</film_or_detector_model>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>2964</number_real_images>
                            <average_electron_dose_per_image units="e/Å^2">51.0</average_electron_dose_per_image>
                            <details>movie mode 40 frames</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>409611</number_selected>
                </particle_selection>
                <startup_model type_of_model="NONE"/>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">4.2</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>193152</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>ANGULAR RECONSTITUTION</type>
                    <software_list>
                        <software>
                            <name>cryoSPARC</name>
                            <version>2.15</version>
                        </software>
                    </software_list>
                </final_angle_assignment>
                <final_three_d_classification>
                    <number_classes>1</number_classes>
                </final_three_d_classification>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="256001">
        <file>emd_23267.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>400</col>
            <row>400</row>
            <sec>400</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>400</x>
            <y>400</y>
            <z>400</z>
        </spacing>
        <cell>
            <a units="Å">432.00003</a>
            <b units="Å">432.00003</b>
            <c units="Å">432.00003</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>-1.783147</minimum>
            <maximum>3.8408334</maximum>
            <average>-0.0010064957</average>
            <std>0.041981425</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.08</x>
            <y units="Å">1.08</y>
            <z units="Å">1.08</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.235</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-23267::::</label>
        <annotation_details>Bacterial cellulose synthase BcsB with polyalanine BcsA model</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>AB INITIO MODEL</refinement_protocol>
                <target_criteria>CC</target_criteria>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>101.450000000000003</overall_bvalue>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_23267_msk_1.map</file>
            </segmentation>
        </segmentation_list>
    </interpretation>
</emd>
