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<emdEntry accessCode="5403" version="1.9.6">
    <admin>
        <lastUpdate>2013-08-14</lastUpdate>
    </admin>
    <deposition>
        <status prior="HPUB">OBS</status>
        <depositionDate>2012-02-07</depositionDate>
        <depositionSite>RCSB</depositionSite>
        <processingSite>RCSB</processingSite>
        <headerReleaseDate>2012-02-16</headerReleaseDate>
        <obsoletedDate>2013-08-14</obsoletedDate>
        <details>This header was removed at author request prior to map release.</details>
        <title>C3 symmetric heteromeric oligomer rATcpn-ab in apo state</title>
        <authors>Zhang K, Wang L, Liu YX, Wang X, Gao B, Hu ZJ, Ji G, Chan KY, Schulten K, Dong ZY, Sun F</authors>
        <keywords>Group II chaperonin, thermosome</keywords>
        <fittedPDBEntryIdList>
            <fittedPDBEntryId>3j1l</fittedPDBEntryId>
        </fittedPDBEntryIdList>
        <primaryReference published="false">
            <journalArticle>
                <authors>Zhang K, Wang L, Liu YX, Wang X, Gao B, Hu ZJ, Ji G, Chan KY, Schulten K, Dong ZY, Sun F</authors>
                <articleTitle>Structural insights into the intra-ring cooperation of the heteromeric group II chaperonin</articleTitle>
                <journal>To Be Published</journal>
                <volume/>
                <firstPage/>
                <lastPage/>
                <year/>
            </journalArticle>
        </primaryReference>
    </deposition>
    <map>
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        <dataType>Image stored as Reals</dataType>
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            <numColumns>144</numColumns>
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            <numSections>144</numSections>
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        <origin>
            <originCol>-72</originCol>
            <originRow>-72</originRow>
            <originSec>-72</originSec>
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        <limit>
            <limitCol>71</limitCol>
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        <spacing>
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        <cell>
            <cellA units="A">344.448</cellA>
            <cellB units="A">344.448</cellB>
            <cellC units="A">344.448</cellC>
            <cellAlpha units="degrees">90.0</cellAlpha>
            <cellBeta units="degrees">90.0</cellBeta>
            <cellGamma units="degrees">90.0</cellGamma>
        </cell>
        <axisOrder>
            <axisOrderFast>X</axisOrderFast>
            <axisOrderMedium>Y</axisOrderMedium>
            <axisOrderSlow>Z</axisOrderSlow>
        </axisOrder>
        <statistics>
            <minimum>-14.90416622</minimum>
            <maximum>19.07429123</maximum>
            <average>-1E-8</average>
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        </statistics>
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        <details>::::EMDATABANK.org::::EMD-5403::::</details>
        <pixelSpacing>
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            <pixelZ units="A">2.392</pixelZ>
        </pixelSpacing>
        <contourLevel source="author">3.8</contourLevel>
        <annotationDetails>Reconstruction of the major class of C3 symmetric heteromeric oligomer rATcpn-ab in apo state</annotationDetails>
    </map>
    <supplement>
        <maskSet/>
        <sliceSet/>
        <figureSet/>
        <fscSet/>
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    <sample>
        <numComponents>1</numComponents>
        <name>Heteromeric group II chaperonin rATcpn-ab in apo state</name>
        <compDegree>octadecamer</compDegree>
        <molWtTheo units="MDa">1.08</molWtTheo>
        <molWtExp units="MDa">1.08</molWtExp>
        <sampleComponentList>
            <sampleComponent componentID="1">
                <entry>protein</entry>
                <sciName>Heteromeric group II chaperonin rATcpn-ab</sciName>
                <synName>rATcpn-ab</synName>
                <molWtTheo units="MDa">1.08</molWtTheo>
                <molWtExp units="MDa">1.08</molWtExp>
                <protein>
                    <sciSpeciesName ncbiTaxId="146920">Acidianus tengchongensis</sciSpeciesName>
                    <recombinantExpFlag>true</recombinantExpFlag>
                    <oligomericDetails>octadecamer</oligomericDetails>
                    <synSpeciesName>Archaea</synSpeciesName>
                    <numCopies>1</numCopies>
                    <sciSpeciesStrain>S5T</sciSpeciesStrain>
                    <externalReferences/>
                    <natSource/>
                    <engSource>
                        <vector>PET-23b</vector>
                        <expSystem ncbiTaxId="562">Escherichia coli</expSystem>
                    </engSource>
                </protein>
            </sampleComponent>
        </sampleComponentList>
    </sample>
    <experiment>
        <vitrification>
            <method>Blot for 4 seconds before plunging</method>
            <cryogenName>ETHANE</cryogenName>
            <humidity>100</humidity>
            <instrument>FEI VITROBOT MARK IV</instrument>
            <temperature units="Kelvin">100</temperature>
        </vitrification>
        <imaging>
            <astigmatism>Objective lens astigmatism was corrected at 96,000 times magnification</astigmatism>
            <electronSource>FIELD EMISSION GUN</electronSource>
            <electronDose units="e/A**2">20</electronDose>
            <imagingMode>BRIGHT FIELD</imagingMode>
            <nominalDefocusMin units="nm">1500</nominalDefocusMin>
            <nominalDefocusMax units="nm">3500</nominalDefocusMax>
            <illuminationMode>FLOOD BEAM</illuminationMode>
            <detector>GATAN ULTRASCAN 4000 (4k x 4k)</detector>
            <nominalCs units="mm">2.7</nominalCs>
            <calibratedMagnification>75000</calibratedMagnification>
            <microscope>FEI TITAN KRIOS</microscope>
            <date>07-JUN-2010</date>
            <specimenHolderModel>GATAN LIQUID NITROGEN</specimenHolderModel>
            <acceleratingVoltage units="kV">300</acceleratingVoltage>
            <nominalMagnification>75000</nominalMagnification>
        </imaging>
        <imageAcquisition>
            <numDigitalImages>3000</numDigitalImages>
            <quantBitNumber>32</quantBitNumber>
        </imageAcquisition>
        <fitting>
            <details>Protocol: Rigid body and Molecular Dynamics Flexible Fitting. symmetry-restrained MDFF</details>
            <software>Chimera</software>
            <refProtocol>flexible</refProtocol>
            <refSpace>REAL</refSpace>
            <pdbEntryIdList>
                <pdbEntryId>3KO1</pdbEntryId>
                <pdbChainId>A</pdbChainId>
            </pdbEntryIdList>
        </fitting>
        <specimenPreparation>
            <specimenConc units="mg/ml">3</specimenConc>
            <specimenSupportDetails>400-mesh GiGTM grid with holes of 2 um diameter and 2 um spacing</specimenSupportDetails>
            <specimenState>particle</specimenState>
            <buffer>
                <details>25 mM Tris-HCl, pH 7.5, 12 mM MgCl2, 50 mM KCl</details>
                <ph>7.5</ph>
            </buffer>
        </specimenPreparation>
    </experiment>
    <processing>
        <method>singleParticle</method>
        <reconstruction>
            <software>Spider,EMAN,1.9</software>
            <ctfCorrection>The whole micrograph</ctfCorrection>
            <resolutionByAuthor>13.3</resolutionByAuthor>
            <resolutionMethod>FSC 0.5</resolutionMethod>
        </reconstruction>
        <singleParticle>
            <numProjections>10957</numProjections>
        </singleParticle>
    </processing>
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